Plant Family [a] [b] [c] [d] [e] [f] [g] [h] [i] [j] [k] [l] [m] [n] [o] [p] [q] [r] [s] [t] [u] [v] [w] [x] [y] [z] Paeoniaceae Pallaviciniaceae Pandanaceae Pannariaceae Papaveraceae Parkeriaceae Parmeliaceae Passifloraceae Pedaliaceae Pelliaceae Peltigeraceae Peltulaceae Pertusariaceae Philydraceae Phlyctidaceae Phyllachoraceae Physciaceae Phytolaccaceae Pilocarpaceae Pinaceae Piperaceae Pittosporaceae Placynthiaceae Plagiochilaceae Plagiotheciaceae Plantaginaceae Platanaceae Platygloeaceae Pleomassariaceae Pleosporaceae Pleuroziaceae Pleuroziopsidaceae Plumbaginaceae Poaceae Podocarpaceae Podostemaceae Polemoniaceae Polygalaceae Polygonaceae Polypodiaceae Polytrichaceae Pontederiaceae Porellaceae Porpidiaceae Portulacaceae Posidoniaceae Potamogetonaceae Pottiaceae Primulaceae Proteaceae Protothelenellaceae Pseudoditrichaceae Pseudolepicoleaceae Psilotaceae Psoraceae Pteridaceae Pterigynandraceae Pterobryaceae Ptilidiaceae Ptychomitriaceae Punicaceae Pyrenotrichaceae Pyrenulaceae Pyrolaceae Advertise Here

Plant List Hello world!  Free of charge, is my list of plant species, families and codes, including photos and descriptions. I am adding to this site daily.  Please browse my site for your plant based on scientific name, common name, family name, or code!   Advertise Here The Poaceae Family Common Name Scientific Name Code n/a ?Ammocalamagrostis P. Fourn. AMMOC3 n/a ?Elyhordeum californicum (Bowden) Barkworth [Elymus multisetus ? Hordeum jubatum] ELCA25 n/a ?Elyhordeum pilosilemma (Mitchell & Hodgson) Barkworth [Elymus macrourus ? Hordeum jubatum] ELPI6 n/a ?Leydeum Barkworth LEYDE n/a ?Leydeum piperi (Bowden) Barkworth [Hordeum jubatum ? Leymus triticoides] LEPI15 n/a Achnatherum ?bloomeri (Boland.) Barkworth [hymenoides ? occidentale] ACBL n/a Achnatherum bromoides (L.) P. Beauv. ACBR6 n/a Achnatherum calamagrostis (L.) P. Beauv. ACCA30 n/a Achnatherum caragana (Trin.) Nevski ACCA36 n/a Achnatherum pekinense (Hance) Ohwi ACPE12 n/a Achnatherum splendens (Trin.) Nevski ACSP8 n/a Acroceras oryzoides (Sw.) Stapf [excluded] ACOR2 n/a Aeluropus littoralis (Gouan) Parl. AELI2 n/a Aeluropus Trin. AELUR n/a Agropyron cristatum (L.) Gaertn. var. imbricatum (Roem. & Schult.) Beck AGCRI n/a Agrostis anadyrensis Socz. [excluded] AGAN6 n/a Agrostis nebulosa Boiss. & Reut. [excluded] AGNE9 n/a Agrostis transcaspica Litv. AGTR10 n/a Aira caryophyllea L. ssp. multiculmis (Dumort.) Bonnier & Layens AICAM n/a Aira caryophyllea L. var. cupaniana (Guss.) Fiori AICAC3 n/a Alopecurus bulbosus Gouan ALBU3 n/a Alopecurus dasyanthus Trautv. ALDA3 n/a Alopecurus utriculatus Banks & Sol. ALUT2 n/a Alopecurus vaginatus (Willd.) Pall. ex Kunth ALVA6 n/a Ammophila arenaria (L.) Link ssp. arundinacea H. Lindb. AMARA6 n/a Ancistrachne S.T. Blake ANCIS3 n/a Andropogon fragilis R. Br. ANFR4 n/a Andropogon lateralis Nees ANLA15 n/a Aristida diffusa Trin. ARDI25 n/a Arrhenatherum kotschyii Boiss. ARKO3 n/a Arrhenatherum longifolium (Thore) Dulac ARLO14 n/a Arrhenatherum palaestinum Boiss. ARPA34 n/a Arundinaria viridistriata (Regel) Makino ex Nakai ARVI19 n/a Arundinella hirta (Thunb.) Koidz. ARHI8 n/a Arundinella nepalensis Trin. ARNE12 n/a Astrebla elymoides Bailey & F. Muell. ex F.M. Bailey [excluded] ASEL15 n/a Astrebla F. Muell. ex Benth. ASTRE2 n/a Austrostipa S.W.L. Jacobs & J. Everett AUSTR n/a Austrostipa scabra (Lindl.) S. W. L. Jacobs & J. Everett AUSC n/a Austrostipa scabra (Lindl.) S. W. L. Jacobs & J. Everett ssp. falcata (Hughes) S. W. L. Jacobs & J. Everett AUSCF n/a Avellinia michelii (Savi) Parl. AVMI n/a Avellinia Parl. AVELL n/a Avena brevis Roth [excluded] AVBR2 n/a Avena sterilis L. ssp. ludoviciana (Durieu) Gill & Magne [excluded] AVSTL3 n/a Avenula (Dumort.) Dumort. AVENU n/a Axonopus siccus (Nees) Kuhlm. AXSI n/a Bambusa bambos (L.) Voss [excluded] BABA8 n/a Bambusa blumeana Schult. f. BABL2 n/a Bambusa oldhamii W. Munro [excluded] BAOL n/a Bothriochloa ambigua S.T. Blake [excluded] BOAM3 n/a Bothriochloa bladhii (Retz.) S.T. Blake ssp. glabra (Roxb.) B. K. Simon BOBLG n/a Bothriochloa decipiens (Hack.) C.E. Hubbard [excluded] BODE8 n/a Bothriochloa erianthoides (F. Muell.) C.E. Hubbard [excluded] BOER7 n/a Brachiaria mollis (Sw.) Parodi [excluded] BRMO6 n/a Brachiaria serrata (Thunb.) Stapf BRSE8 n/a Brachyachne convergens (F. Muell.) Stapf BRCO15 n/a Brachyachne Stapf BRACH14 n/a Brachypodium retusum (Pers.) P. Beauv. BRRE9 n/a Brachypodium rupestre (Host) Roemer & J.A. Schultes BRRU9 n/a Brachypodium rupestre (Host) Roemer & J.A. Schultes ssp. caespitosum (Host) H. Scholz BRRUC2 n/a Briza lamarckiana Nees BRLA21 n/a Briza media L. ssp. elatior (Sm.) Rohlena BRMEE n/a Briza subaristata Lam. BRSU15 n/a Briza uniolae (Nees) Steud. BRUN5 n/a Bromus auleticus Trin. ex Nees BRAU4 n/a Bromus barcensis Simonk. BRBA4 n/a Bromus brachyanthera Doll BRBR14 n/a Bromus brachyanthera Doll ssp. uruguayensis (Arechav.) Roseng. et al. BRBRU n/a Bromus brachystachys Hornung BRBR12 n/a Bromus bromoideus (Lej.) Crep. BRBR13 n/a Bromus cappadocicus Boiss. & Balansa BRCA27 n/a Bromus hordeaceus L. ssp. ferronii (Mabille) P. M. Sm. BRHOF n/a Bromus intermedius Guss. BRIN13 n/a Bromus interruptus (Hack.) Druce BRIN14 n/a Bromus lanceolatus Roth var. lanuginosus (Poir.) Dinsm. BRLAL n/a Bromus oxyodon Schrenk BROX3 n/a Bromus pannonicus Kumm. & Sendtn. BRPA18 n/a Bromus pectinatus Thunb. BRPE10 n/a Bromus pseudodanthoniae Drobow BRPS9 n/a Bromus ramosus Huds. ssp. benekenii (Lange) Lindb. BRRAB n/a Bromus secalinus L. var. decipiens Bomble & H. Scholz BRSED n/a Bromus setifolius J. Presl BRSE10 n/a Bromus setifolius J. Presl var. brevifolius Nees BRSEB n/a Bromus squarrosus L. var. villosus (K.C. Gmel.) Reichenb. [excluded] BRSQV2 n/a Bromus stenostachyus Boiss. BRST10 n/a Bromus syriacus Boiss. & Blanche BRSY3 n/a Bromus tomentellus Boiss. BRTO5 n/a Bromus tomentosus Trin. BRTO6 n/a Bromus variegatus M. Bieb. BRVA4 n/a Calamagrostis ?kolymensis Komarov (pro sp.) [excluded] CAKO7 n/a Calamagrostis alba (J. Presl) Steud. CAAL33 n/a Calamagrostis arundinacea (L.) Roth CAAR45 n/a Calamagrostis epigeios (L.) Roth ssp. macrolepis (Litv.) Tzvelev [excluded] CAEPM3 n/a Calamagrostis epigeios (L.) Roth ssp. meinshausenii Tzvelev [excluded] CAEPM4 n/a Calamagrostis leonardii Chase [excluded] CALE56 n/a Calamagrostis pseudophragmites (Haller f.) Koeler CAPS10 n/a Calamagrostis purpurea (Trin.) Trin. CAPU47 n/a Calamagrostis purpurea (Trin.) Trin. ssp. phragmitoides (Hartm.) Tzvelev CAPUP6 n/a Calamagrostis stricta (Timm) Koel. ssp. stricta var. borealis (Laestad.) Hartman CASTB4 n/a Calamagrostis varia (Schrad.) Host CAVA10 n/a Calamagrostis viridiflavescens (Poir.) Steud. CAVI28 n/a Calamagrostis viridiflavescens (Poir.) Steud. var. montevidensis (Nees) Kaempf CAVIM2 n/a Calyptochloa C.E. Hubb. CALYP7 n/a Calyptochloa gracillima C. E. Hubb. CAGR36 n/a Castellia Tineo CASTE7 n/a Castellia tuberculosa (Moris) Bor CATU16 n/a Catapodium Link CATAP3 n/a Celtica F.M. V?zquez & Barkworth CELTI2 n/a Celtica gigantea (Link) F. M. Vazquez & Barkworth CEGI3 n/a Centotheca Desv. CENTO n/a Centotheca lappacea (L.) Desv. CELA9 n/a Centropodia (R. Br.) Reichb. CENTR7 n/a Centropodia glauca (Nees) Cope CEGL7 n/a Chloris ?brevispica Nash [andropogonoides ? cucullata] CHBR12 n/a Chloris berroi Arech. [excluded] CHBE9 n/a Chloris castilloniana Lillo & Parodi CHCA35 n/a Chloris mossambicensis K. Schum. CHMO11 n/a Chloris roxburghiana Schult. CHRO9 n/a Chrysopogon gryllus (L.) Trin. CHGR21 n/a Chrysopogon nodulibarbis (Steud.) Henr. CHNO5 n/a Chusquea coronalis S?derstrom & Calder?n [excluded] CHCO29 n/a Cleistachne Benth. CLEIS4 n/a Cleistachne sorghoides Benth. CLSO5 n/a Cleistogenes Keng CLEIS2 n/a Cleistogenes squarrosa (Trin.) Keng CLSQ2 n/a Coelorachis rottboellioides (R. Br.) A. Camus CORO10 n/a Cortaderia rudiuscula Stapf [excluded] CORU18 n/a Corynephorus fasciculatus Boiss. & Reut. COFA6 n/a Cutandia divaricata (Desf.) Asch. ex Barbey CUDI3 n/a Cutandia maritima (L.) Barbey CUMA6 n/a Cymbopogon distans (Nees) J. F. Watson CYDI13 n/a Cymbopogon tortilis (J. Presl) A. Camus CYTO3 n/a Cynodon arcuatus J. Presl [excluded] CYAR15 n/a Cynodon barberi Rang. & Tad. [excluded] CYBA9 n/a Cynodon dactylon (L.) Pers. var. aridus Harlan & de Wet [excluded] CYDAA2 n/a Cyrtococcum oxyphyllum Stapf CYOX3 n/a Cyrtococcum patens (L.) Camus CYPA22 n/a Cyrtococcum Stapf CYRTO7 n/a Dactylis glomerata L. ssp. himalayensis Domin DAGLH2 n/a Dactylis glomerata L. ssp. hispanica (Roth) Nyman DAGLH3 n/a Dactylis glomerata L. ssp. lobata (Drejer) H. Lindb. DAGLL3 n/a Dactylis glomerata L. ssp. lusitanica Stebbins & Zohary DAGLL2 n/a Dactylis glomerata L. ssp. smithii (Link) Stebbins & Zohary DAGLS2 n/a Dactylis glomerata L. ssp. woronowii (Ovcz.) Stebbins & Zohary DAGLW2 n/a Dactylis marina Borrill DAMA3 n/a Dactyloctenium giganteum B. S. Fisher & Schweick. DAGI n/a Danthonia alpina Vest DAAL5 n/a Danthonia racemosa R. Br. [excluded] DARA3 n/a Danthoniopsis dinteri (Pilg.) C. E. Hubb. DADI5 n/a Danthoniopsis pruinosa C. E. Hubb. DAPR4 n/a Danthoniopsis Stapf DANTH2 n/a Dendrocalamus gigantea Munro [excluded] DEGI2 n/a Dendrocalamus Nees DENDR7 n/a Deschampsia cespitosa (L.) Beauv. ssp. bottonia (Wahl.) Tzvelev [excluded] DECEB5 n/a Deschampsia cespitosa (L.) Beauv. ssp. obensis (Rosh.) Tzvelev [excluded] DECEO2 n/a Deschampsia media (Gouan) Roem. & Schult. DEME4 n/a Desmostachya (Stapf) Stapf DESMO2 n/a Desmostachya bipinnata (L.) Stapf DEBI5 n/a Dichanthium bladhii (Retz.) Clayton DIBL7 n/a Dichanthium caricosum (L.) A. Camus [excluded] DICA35 n/a Dichanthium tenuiculum (Steud.) S. T. Blake DITE11 n/a Dichelachne montana Endl. [excluded] DIMO11 n/a Digitaria ?aequiglumis (Hack. & Arech.) Parodi DIAE3 n/a Digitaria argyrograpta (N?es) Stapf [excluded] DIAR15 n/a Digitaria brownii (Roemer & J.A. Schultes) Hughes [excluded] DIBR12 n/a Digitaria debilis (Desf.) Willd. [excluded] DIDE8 n/a Digitaria diagonalis (N?es) Stapf [excluded] DIDI19 n/a Digitaria divaricatissima (R. Br.) Hughes [excluded] DIDI20 n/a Digitaria diversinervis (N?es) Stapf [excluded] DIDI21 n/a Digitaria eriostachya Mez [excluded] DIER8 n/a Digitaria gaudichaudii (Kunth) Henrard DIGA3 n/a Digitaria gazensis Rendle DIGA2 n/a Digitaria glauca A. Camus [excluded] DIGL7 n/a Digitaria herpocladus Pilger [excluded] DIHE7 n/a Digitaria leptorrhachis (Pilg.) Stapf DILE11 n/a Digitaria macroglossa Henr. [excluded] DIMA16 n/a Digitaria mariannensis Merr. DIMA27 n/a Digitaria monodactyla (N?es) Stapf [excluded] DIMO12 n/a Digitaria phaeothrix (Trin.) Parodi [excluded] DIPH4 n/a Digitaria smutsii Stent [excluded] DISM4 n/a Digitaria swalleniana Henr. [excluded] DISW3 n/a Digitaria swazilandensis Stent [excluded] DISW4 n/a Digitaria timorensis (Kunth) Balansa [excluded] DITI2 n/a Digitaria tomentosa (Koen. ex Rottl.) Henr. [excluded] DITO6 n/a Digitaria tricholaeinoides Stapf [excluded] DITR10 n/a Digitaria uniglumis (A. Rich.) Stapf [excluded] DIUN10 n/a Digitaria valida Stent [excluded] DIVA5 n/a Dimeria chloridiformis sensu Ohwi 1941, non (Gaudich.) K. Schum. & Lauterb. DICH14 n/a Dimeria ciliata Merrill DICI6 n/a Dimeria ornithopoda Trin. DIOR5 n/a Dimeria R. Br. DIMER3 n/a Distichlis palmeri (Vasey) Fassett ex I. M. Johnst. DIPA23 n/a Echinochloa spectabilis (Nees) Link [excluded] ECSP5 n/a Echinopogon Beauv. ECHIN12 n/a Echinopogon nutans C. E. Hubb. ECNU n/a Ehrharta capensis Thunb. [excluded] EHCA3 n/a Ehrharta longifolia Schrad. EHLO2 n/a Elymus ?ebingeri G. Tucker [hystrix ? virginicus] ELEB n/a Elymus ?hansenii Scribn. (pro sp.) [glaucus ? elymoides or multisetus] ELHA3 n/a Elymus ?maltei Bowden [canadensis ? virginicus] ELMA4 n/a Elymus ?mossii (Lepage) Barkworth & D.R. Dewey [canadensis ? trachycaulis] ELMO6 n/a Elymus ?palmerensis (Lepage) Barkworth & D.R. Dewey [macrourus ? sibiricus] ELPA14 n/a Elymus ?pinaloensis (Pyrah) Barkworth & D.R. Dewey [arizonicus ? hystrix] ELPI3 n/a Elymus ?pseudorepens (Scribn. & J.G. Sm.) Barkworth & D.R. Dewey [lanceolatus ? trachycaulus] ELPS n/a Elymus ?saundersii Vasey (pro sp.) [elymoides ? trachycaulus] ELSA4 n/a Elymus abolinii (Drobow) Tzvelev ELAB n/a Elymus agropyroides J. Presl ELAG2 n/a Elymus batalinii (Krasn.) A. Love ELBA4 n/a Elymus breviaristatus (Hitchc.) A. Love ELBR6 n/a Elymus breviaristatus (Hitchc.) A. Love ssp. scabrifolius (Doll) A. Love ELBRS n/a Elymus dahuricus Turcz. ex Griseb. ssp. excelsus (Turcz. ex Griseb.) Tzvelev ELDAE n/a Elymus donianus (F. B. White) A. Love & D. Love ELDO2 n/a Elymus drobovii (Nevski) Tzvelev ELDR n/a Elymus fibrosus (Schrenk) Tzvelev ELFI3 n/a Elymus fibrosus (Schrenk) Tzvelev ssp. fibrosus ELFIF n/a Elymus kronokensis (Komarov) Tzvelev ssp. kronokensis (Komarov) Tzvelev [excluded] ELKRK2 n/a Elymus kronokensis (Komarov) Tzvelev ssp. subalpinus (L. Neum.) Tzvelev [excluded] ELKRS2 n/a Elymus kronokensis (Komarov) Tzvelev [excluded] ELKR2 n/a Elymus longearistatus (Boiss.) Tzvelev ELLO4 n/a Elymus magellanicus (E. Desv.) A. Love ELMA14 n/a Elymus mutabilis (Drobow) Tzvelev ELMU7 n/a Elymus mutabilis (Drobow) Tzvelev ssp. mutabilis ELMUM n/a Elymus mutabilis (Drobow) Tzvelev ssp. praecaespitosus (Nevski) Tzvelev ELMUP n/a Elymus nevskii Tzvelev ELNE2 n/a Elymus nutans Griseb. ELNU4 n/a Elymus patagonicus Speg. ELPA15 n/a Elymus praeruptus Tzvelev ELPR3 n/a Elymus repens (L.) Gould ssp. elongatiformis (Drobow) Melderis ELREE n/a Elymus scabriglumis (Hack.) A. Love ELSC9 n/a Elymus stebbinsii Gould ssp. septentrionalis Barkworth ELSTS n/a Elymus transhyrcanus (Nevski) Tzvelev ELTR9 n/a Elymus tsukushiensis Honda ELTS n/a Elymus tsukushiensis Honda var. tsukushiensis ELTST n/a Elytrigia ?littorea (Schumach.) Hyl. ELLI4 n/a Elytrigia ?obtusiuscula (Lange) Hyl. ELOB3 n/a Elytrigia alatavica (Drobow) Nevski ELAL6 n/a Elytrigia caespitosa (K. Koch) Nevski ELCA23 n/a Elytrigia caespitosa (K. Koch) Nevski ssp. caespitosa ELCAC3 n/a Elytrigia Desv. ELYTR3 n/a Elytrigia disticha (Thunb.) Prokudin ex A. Love ELDI5 n/a Enneapogon glaber N. T. Burb. ENGL2 n/a Enneapogon persicus Boiss. ENPE3 n/a Enteropogon macrostachyus (Hochst. ex A. Rich.) Munro ex Benth. ENMA4 n/a Enteropogon monostachyos (Vahl) K. Schum. ENMO3 n/a Entolasia imbricata Stapf ENIM n/a Eragrostis alba Presl [excluded] ERAL24 n/a Eragrostis bicolor Nees ERBI8 n/a Eragrostis capensis (Thunb.) Trin. ERCA35 n/a Eragrostis cilianensis (All.) Vign. ex Janchen ssp. starosselskyi (Grossh.) Tzvelev ERCIS n/a Eragrostis ciliaris (L.) R. Br. var. brachystachya Boiss. [excluded] ERCIB3 n/a Eragrostis ciliaris (L.) R. Br. var. laxa Kuntze [excluded] ERCIL2 n/a Eragrostis dielsii Pilg. ERDI16 n/a Eragrostis ferruginea (Thunb.) P. Beauv. ERFE2 n/a Eragrostis heteromera Stapf ERHE10 n/a Eragrostis hispida Schumach. ERHI10 n/a Eragrostis leptocarpa Benth. ERLE18 n/a Eragrostis megalosperma F. Muell. ex Benth. ERME17 n/a Eragrostis obtusa Munro ex Stapf [excluded] EROB5 n/a Eragrostis papposa (Roem. & Schult.) Steud. ERPA26 n/a Eragrostis sarmentosa (Thunb.) Trin. ERSA20 n/a Eragrostis speciosa (Roem. & Schult.) Steud. ERSP17 n/a Eragrostis tremula Hochst. ex Steud. ERTR25 n/a Eragrostis viscosa (Retz.) Trin. [excluded] ERVI23 n/a Eremopyrum squarrosum (Link) Jaubert & Spach [excluded] ERSQ2 n/a Eriachne aristidea F. Muell. ERAR30 n/a Eriachne armittii F. Muell. ERAR31 n/a Eriachne pallescens R. Br. ERPA27 n/a Eriachne R. Br. ERIAC n/a Eriochloa australiensis Stapf ex Thell. ERAU8 n/a Eriochloa meyeriana (Nees) Pilg. ERME18 n/a Eulalia aurea (Bory) Kunth EUAU3 n/a Eulalia Trin. EULAL3 n/a Eustachys uliginosa (Hack.) Herter EUUL n/a Festuca ?aschersoniana Dorfl. [excluded] FEAS4 n/a Festuca altissima All. FEAL2 n/a Festuca amethystina L. [excluded] FEAM3 n/a Festuca ampla Hack. FEAM4 n/a Festuca beckeri (Hack.) Trautv. FEBE n/a Festuca beckeri (Hack.) Trautv. ssp. polesica (Zapal.) Tzvelev FEBEP n/a Festuca burnatii St.-Yves FEBU n/a Festuca caerulescens Desf. FECA5 n/a Festuca cretacea T. N. Popova & Proskor. FECR2 n/a Festuca dimorpha Guss. FEDI2 n/a Festuca drymeja Mert. & W. D. J. Koch FEDR2 n/a Festuca durandoi Clauson FEDU2 n/a Festuca elegans Boiss. FEEL3 n/a Festuca eskia Ramond ex DC. FEES n/a Festuca extremiorientalis Ohwi FEEX n/a Festuca hervieri Patzke FEHE3 n/a Festuca kitaibeliana J.A. Schultes [excluded] FEKI3 n/a Festuca mairei St.-Yves FEMA2 n/a Festuca novae-zelandiae (Hack.) Cockayne FENO n/a Festuca pallens Host FEPA4 n/a Festuca pallescens (St.-Yves) Parodi FEPA5 n/a Festuca picturata Pils FEPI n/a Festuca porcii Hack. FEPO3 n/a Festuca psammophila (Hack. ex Celak.) Fritsch FEPS2 n/a Festuca pseudodalmatica Krajina ex Domin FEPS3 n/a Festuca rigescens (Presl) Kunth [excluded] FERI5 n/a Festuca rivularis Boiss. FERI4 n/a Festuca rubra L. ssp. pruinosa (Hack.) Piper FERUP5 n/a Festuca rubra L. var. planifolia Hack. FERUP3 n/a Festuca rupicaprina (Hack.) A. Kern. FERU3 n/a Festuca rupicola Heuff. FERU4 n/a Festuca scabriuscula Phil. FESC5 n/a Festuca sclerophylla Boiss. ex Bisch. FESC6 n/a Festuca spectabilis Jan FESP n/a Festuca stricta Host FEST n/a Festuca tatrae (Czako) Degen FETA n/a Festuca valesiaca Schleich. ex Gaudin ssp. saxatilis (Schur) E. B. Alexeev FEVAS n/a Festuca violacea Schleich. ex Gaudin FEVI6 n/a Festuca vivipara (L.) Sm. ssp. vivipara (L.) Sm. [excluded] FEVIV4 n/a Festuca xanthina Roem. & Schult. FEXA2 n/a Glyceria ?gatineauensis Bowden [melicaria ? striata] GLGA n/a Helictotrichon bromoides (Gouan) C. E. Hubb. HEBR10 n/a Helictotrichon compressum (Heuff.) Henrard HECO32 n/a Helictotrichon dahuricum (Komarov) Kitagawa [excluded] HEDA3 n/a Helictotrichon pratense (L.) Besser HEPR11 n/a Helictotrichon sulcatum (J. Gay ex Delastre) Henrard HESU13 n/a Helictotrichon versicolor (Vill.) Schult. & Schult. f. HEVE8 n/a Heteranthelium Hochst. ex Jaub. & Spach HETER20 n/a Heteranthelium piliferum (Banks & Sol.) Hochst. HEPI9 n/a Hierochloe odorata (L.) Beauv. ssp. dahurica (Trin.) Printz [excluded] HIODD2 n/a Hilaria cenchroides Kunth [excluded] HICE2 n/a Homolepis Chase HOMOL n/a Homopholis C.E. Hubb. HOMOP n/a Homopholis proluta (F. Muell.) R. D. Webster HOPR3 n/a Hordelymus (Jess.) Harz HORDE2 n/a Hordeum bogdanii Wilensky HOBO5 n/a Hordeum brevisubulatum (Trin.) Link HOBR5 n/a Hordeum comosum J. Presl HOCO4 n/a Hordeum parodii Covas HOPA9 n/a Hordeum pusillum Nutt. ssp. euclaston (Steud.) Hauman [excluded] HOPUE2 n/a Hordeum secalinum Schreb. [excluded] HOSE8 n/a Hyparrhenia anthistirioides (Hochst. ex A. Rich.) Stapf HYAN6 n/a Hyparrhenia pilgeriana C. E. Hubb. HYPI n/a Imperata conferta (Presl) Ohwi IMCO2 n/a Isachne miliacea Roth var. minutula (Gaudich.) Fosberg & Sachet ISMIM2 n/a Isachne myosotis N?es [excluded] ISMY3 n/a Isachne polygonoides (Lam.) Doell [excluded] ISPO2 n/a Ischaemum aureum (Hook. & Arn.) Hack. [excluded] ISAU2 n/a Ischaemum digitatum Brongn. [excluded] ISDI6 n/a Ischaemum fasciculatum Brongn. ISFA2 n/a Ischaemum longisetum Merr. ISLO4 n/a Ischaemum longisetum Merr. var. longisetum ISLOL n/a Ischaemum polystachyum J. Presl ISPO3 n/a Ischaemum polystachyum J. Presl var. polystachyum Presl ISPOP n/a Ischaemum rugosum Salisb. var. segetum (Trin.) Hack. ISRUS n/a Ischaemum tumidum Stapf ex Bor ISTU3 n/a Iseilema Anderss. ISEIL n/a Iseilema macratherum Domin ISMA5 n/a Karroochloa curva (Nees) Conert & Turpe KACU2 n/a Koeleria caudata (Link) Steud. KOCA3 n/a Koeleria grandis Besser ex Gorski KOGR3 n/a Lasiurus Boiss. LASIU n/a Lasiurus scindicus Henrard LASC8 n/a Leptochloa obtusiflora Hochst. LEOB10 n/a Lepturus filiformis (Roth) Trin. [excluded] LEFI15 n/a Leymus ?multiflorus (Gould) Barkworth & Atkins [condensatus ? triticoides] LEMU4 n/a Leymus ?vancouverensis (Vasey) Pilger (pro sp.) [mollis ? triticoides] LEVA3 n/a Leymus akmolinensis (Drobow) Tzvelev LEAK2 n/a Leymus alaicus (Korsh.) Tzvelev LEAL41 n/a Leymus alaicus (Korsh.) Tzvelev ssp. karataviensis (Roshev.) Tzvelev LEALK n/a Leymus erianthus (Phil.) Dubcovsky LEER8 n/a Leymus karelinii (Turcz.) Tzvelev LEKA4 n/a Leymus paboanus (Claus) Pilg. LEPA49 n/a Loliolum Krecz. & Bobr. LOLIO n/a Loliolum subulatum (Banks & Sol.) Eig LOSU10 n/a Lolium canariense Steud. LOCA13 n/a Lolium remotum Schrank LORE8 n/a Loudetia Hochst. LOUDE n/a Melica brasiliana Ard. MEBR7 n/a Melica ciliata L. MECI13 n/a Melica ciliata L. ssp. ciliata MECIC3 n/a Melica ciliata L. ssp. magnolii (Gren. & Godr.) Husn. MECIM n/a Melica eremophila Torres MEER5 n/a Melica hyalina Doll MEHY6 n/a Melica macra Nees MEMA15 n/a Melica persica Kunth MEPE14 n/a Melica persica Kunth ssp. inaequiglumis (Boiss.) Bor MEPEI n/a Melica rigida Cav. MERI4 n/a Melica sarmentosa Nees MESA8 n/a Melinis nerviglumis (Franch.) Zizka MENE8 n/a Merxmuellera Conert MERXM n/a Merxmuellera stricta (Schrad.) Conert MEST12 n/a Microlaena R. Br. MICRO20 n/a Micropyrum Link MICRO19 n/a Micropyrum patens (Brot.) Rothm. ex Pilg. MIPA19 n/a Micropyrum tenellum (L.) Link MITE14 n/a Miscanthus nepalensis (Trin.) Hack. [excluded] MINE4 n/a Molinia caerulea (L.) Moench ssp. arundinacea (Schrank) K. Rich. [excluded] MOCAA2 n/a Muhlenbergia ?curtisetosa (Scribn.) Bush (pro sp.) [frondosa ? schreberi] MUCU2 n/a Muhlenbergia ?involuta Swallen (pro sp.) [lindheimeri ? reverchonii] MUIN n/a Nassella hyalina (Nees) Barkworth NAHY n/a Nassella megapotamica (Spreng. ex Trin.) Barkworth NAME4 n/a Nassella tenuis (Phil.) Barkworth NATE4 n/a Ochthochloa compressa (Forssk.) Hilu OCCO4 n/a Ochthochloa Edgew. OCHTH n/a Ophiuros C.F. Gaertn. OPHIU n/a Ophiuros exaltatus (L.) Kuntze OPEX n/a Ophiuros tongcalingii (Elmer) Henrard OPTO4 n/a Oplismenus hirtellus (L.) Beauv. ssp. setarius (Lam.) Mez ex Ekman OPHIS n/a Oplismenus hirtellus (L.) P. Beauv. var. hirtellus (L.) Beauv. OPHIH2 n/a Oplismenus hirtellus (L.) P. Beauv. var. imbecillis (R. Br.) Fosberg & Sachet OPHII n/a Ottochloa Dandy OTTOC n/a Oxychloris M. Lazarides OXYCH n/a Oxychloris scariosa (F. Muell.) Lazarides OXSC2 n/a Panicum mindanaense Merr. PAMI27 n/a Panicum pilosum Sw. [excluded] PAPI10 n/a Panicum racemosum (P. Beauv.) Spreng. PARA20 n/a Panicum stapfianum Fourc. PAST21 n/a Panicum subquadriparum Trin. PASU41 n/a Paspalum ?purpureum K. Schum. [excluded] PAPU19 n/a Paspalum bertonii Hack. [excluded] PABE11 n/a Paspalum clandestinum Hochst. [excluded] PACL11 n/a Paspalum commersonii Lam. [excluded] PACO46 n/a Paspalum conjugatum Berg. var. pubescens Doell [excluded] PACOP2 n/a Paspalum cromyorhizon Trin. ex Doll PACR16 n/a Paspalum geminiflorum Steud. PAGE7 n/a Paspalum guaraniticum Parodi PAGU3 n/a Paspalum guenoarum Arechav. var. rojasii (Hack.) Parodi PAGUR2 n/a Paspalum haumanii Parodi PAHA13 n/a Paspalum ionanthum Chase PAIO3 n/a Paspalum juergensii Hack. PAJU3 n/a Paspalum maculosum Trin. PAMA29 n/a Paspalum mandiocanum Trin. PAMA30 n/a Paspalum nervosum (N?es) Trin. [excluded] PANE13 n/a Paspalum paucifolium Swallen PAPA37 n/a Paspalum polyphyllum Nees PAPO10 n/a Paspalum pumilum Nees PAPU17 n/a Paspalum tenellum Willd. PATE19 n/a Paspalum wettsteinii Hack. PAWE7 n/a Paspalum yaguaronense Henrard PAYA3 n/a Pennisetum divisum (Forssk. ex J. F. Gmel.) Henrard PEDI16 n/a Pennisetum macrostachyum (Brongn.) Trin. [excluded] PEMA22 n/a Pennisetum schimperi Steud. [excluded] PESC14 n/a Perotis Ait. PEROT n/a Phalaris commutata Roemer & J.A. Schultes [excluded] PHCO46 n/a Phalaris truncata Guss. ex Bertol. PHTR9 n/a Phleum graecum Boiss. & Heldr. [excluded] PHGR27 n/a Phleum hirsutum Honck. PHHI18 n/a Phyllostachys angusta McClure PHAN17 n/a Phyllostachys bissetii McClure PHBI8 n/a Phyllostachys mannii Gamble PHMA28 n/a Phyllostachys purpurata McClure PHPU24 n/a Piptatherum aequiglume (Duthie) Roshev. PIAE2 n/a Piptatherum coerulescens (Desf.) Beauv. [excluded] PICO11 n/a Piptatherum microcarpum (Pilg.) Tzvelev PIMI8 n/a Piptatherum molinioides Boiss. PIMO9 n/a Piptatherum munroi (Stapf) Mez PIMU7 n/a Piptatherum paradoxum (L.) P. Beauv. PIPA14 n/a Piptatherum purpurascens (Hack. ex Paulsen) Roshev. PIPU8 n/a Piptatherum songaricum (Trin. & Rupr.) Roshev. ex Nikitina PISO4 n/a Piptochaetium bicolor (Vahl) E. Desv. PIBI n/a Piptochaetium lasianthum Griseb. PILA7 n/a Piptochaetium lejopodum (Speg.) Henrard PILE7 n/a Piptochaetium montevidense (Spreng.) Parodi PIMO7 n/a Piptochaetium napostaense (Speg.) Hack. PINA2 n/a Piptochaetium stipoides (Trin. & Rupr.) Hack. var. purpurascens (Hack.) Parodi [excluded] PISTP2 n/a Plectrachne bynoei C. E. Hubb. PLBY n/a Plectrachne Henrard PLECT4 n/a Plectrachne schinzii Henrard PLSC7 n/a Pleioblastus Nakai PLEIO n/a Poa ?nematophylla Rydb. (pro sp.) [cusickii ? fendleriana] PONE18 n/a Poa bulbosa L. ssp. nevskii (Roshev. ex Ovcz.) Tzvelev POBUN n/a Poa cenisia All. POCE10 n/a Poa cenisia All. ssp. sardoa Em. Schmid POCES n/a Poa diversifolia (Boiss. & Balansa) Boiss. PODI15 n/a Poa erinacea Speg. POER7 n/a Poa glauca Vahl ssp. litvinoviana (Ovcz.) Tzvelev POGLL2 n/a Poa iberica Fisch. & C. A. Mey. POIB2 n/a Poa iridifolia Hauman POIR2 n/a Poa lanigera Nees POLA24 n/a Poa lanuginosa Poir. POLA25 n/a Poa ligularis Nees ex Steud. POLI12 n/a Poa litorosa Cheeseman POLI15 n/a Poa longifolia Trin. POLO20 n/a Poa pannonica A. Kern. POPA35 n/a Poa pannonica A. Kern. ssp. scabra (Asch. & Graebn.) Soo POPAS n/a Poa pilcomayensis Hack. POPI11 n/a Poa remota Fors. [excluded] PORE17 n/a Poa sinaica Steud. POSI10 n/a Poa sterilis M. Bieb. POST12 n/a Poa stiriaca Fritsch & Hayek POST13 n/a Poa trivialis L. ssp. sylvicola (Guss.) H. Lindb. POTRS n/a Poa unilateralis Scribn. ssp. pachypholis (Piper) Keck ex Soreng POUNP n/a Poa versicolor Besser POVE7 n/a Poa versicolor Besser ssp. araratica (Trautv.) Tzvelev POVEA2 n/a Poa versicolor Besser ssp. ochotensis (Trin.) Tzvelev POVEO n/a Pogonatherum crinitum (Thunb.) Kunth POCR18 n/a Pogonatherum P. Beauv. POGON3 n/a Polypogon imberbis (Phil.) Johow POIM3 n/a Polytoca macrophylla Benth. [excluded] POMA40 n/a Polytoca R. Br. POLYT8 n/a Pseudoroegneria geniculata (Trin.) A. Love PSGE2 n/a Pseudoroegneria geniculata (Trin.) A. Love ssp. scythica (Nevski) A. Love PSGES n/a Pseudoroegneria kosaninii (Nabelek) A. Love PSKO n/a Pseudoroegneria libanotica (Hack.) D. R. Dewey PSLI6 n/a Pseudoroegneria stipifolia (Czern. ex Nevski) A. Love PSST9 n/a Pseudoroegneria tauri (Boiss. & Balansa) A. Love PSTA3 n/a Psilurus incurvus (Gouan) Schinz & Thell. PSIN9 n/a Psilurus Trin. PSILU n/a Puccinellia stricta (Hook. f.) Blom PUST3 n/a Rottboellia selloana Hack. ROSE10 n/a Rytidosperma unarede (Raoul) Connor & Edgar RYUN n/a Saccharum arundinaceum Retz. [excluded] SAAR28 n/a Saccharum barberi Jeswiet [excluded] SABA18 n/a Saccharum sinense Roxb. [excluded] SASI20 n/a Sacciolepis myosuroides (R. Br.) A. Camus SAMY6 n/a Sacciolepis myuros (Lam.) Chase SAMY7 n/a Sasa senanensis (Franch. & Sav.) Rehder SASE18 n/a Schedonorus ?festucaceus (Link) Kartesz, comb. nov. ined. [arundinaceus ? pratensis] SCFE7 n/a Schedonorus Beauv. SCHED2 n/a Schizachyrium microstachyum (Desv. ex Ham.) Roseng. et al. SCMI13 n/a Schizachyrium pachyarthron C. A. Gardner SCPA18 n/a Schmidtia Moench SCHMI n/a Schmidtia pappophoroides Steud. ex J. A. Schmidt SCPA19 n/a Sclerostachya A. Camus SCLER15 n/a Sclerostachya fusca (Roxb.) A. Camus [excluded] SCFU4 n/a Sehima Forssk. SEHIM2 n/a Sehima ischaemoides Forssk. SEIS n/a Semiarundinaria Makino SEMIA n/a Sesleria autumnalis (Scop.) F. W. Schultz SEAU3 n/a Sesleria caerulea (L.) Ard. SECA22 n/a Sesleria cylindrica (Balb.) DC. SECY6 n/a Sesleria heufleriana Schur SEHE7 n/a Sesleria Scop. SESLE n/a Setaria incrassata (Hochst.) Hack. SEIN8 n/a Setaria lachnea (Nees) Kunth SELA9 n/a Setaria longiseta Beauv. [excluded] SELO4 n/a Setaria paniculifera (Steud.) Fourn. [excluded] SEPA19 n/a Setaria plicata (Lam.) T. Cooke SEPL7 n/a Setaria poiretiana (J.A. Schultes) Kunth [excluded] SEPO8 n/a Setaria sagittifolia (A. Rich.) Walp. SESA10 n/a Setaria sphacelata (Schumacher) Moss var. anceps (Stapf) Veldkamp SESPA2 n/a Setaria sphacelata (Schumacher) Moss var. aurea (Hochst. ex A. Braun) Clayton SESPA3 n/a Setaria tenax (L.C. Rich.) Desv. [excluded] SETE14 n/a Setariopsis auriculata (Fourn.) Scribn. SEAU4 n/a Setariopsis Scribn. ex Millsp. SETAR2 n/a Shibataea Makino ex Nakai SHIBA n/a Sinocalamus oldhamii (Munro) McClure [excluded] SIOL2 n/a Snowdenia C.E. Hubb. SNOWD n/a Snowdenia polystachya (Fresen.) Pilg. SNPO n/a Spartina ?caespitosa A.A. Eat. (pro sp.) [patens ? pectinata] SPCA n/a Spartina ?townsendii H.& J. Groves (pro sp.) [alterniflora ? maritima] SPTO n/a Sphenopholis ?pallens (Biehler) Scribn. (pro sp.) [obtusata ? pensylvanica] SPPA7 n/a Spinifex L. SPINI3 n/a Spodiopogon Trin. SPODI2 n/a Sporobolus australasicus Domin SPAU3 n/a Sporobolus farinosus Hosok. SPFA3 n/a Sporobolus helvolus (Trin.) T. Durand & Schinz SPHE6 n/a Sporobolus nervosus Hochst. SPNE4 n/a Stenotaphrum micranthum (Desv.) C.E.Hubb. STMI12 n/a Stipa arabica Trin. & Rupr. STAR17 n/a Stipa barbata Desf. STBA8 n/a Stipa capillata L. STCA26 n/a Stipa caucasica Schmalh. ssp. desertorum (Roshev.) Tzvelev STCAD n/a Stipa dregeana Steud. STDR4 n/a Stipa haussknechtii Boiss. STHA6 n/a Stipa holosericea Trin. & Rupr. STHO4 n/a Stipa holosericea Trin. & Rupr. ssp. fontanesii (Parl.) Tzvelev STHOF n/a Stipa joannis Celak. STJO2 n/a Stipa L. STIPA n/a Stipa lagascae Roem. & Schult. STLA15 n/a Stipa lessingiana Trin. & Rupr. STLE12 n/a Stipa offneri Breistr. STOF3 n/a Stipa orientalis Trin. STOR6 n/a Stipa psylantha Speg. STPS4 n/a Stipa pulcherrima K. Koch STPU9 n/a Stipa sareptana A. K. Becker STSA8 n/a Stipa tirsa Steven STTI3 n/a Stipa ucrainica P. A. Smirn. STUC2 n/a Stipagrostis ciliata (Desf.) De Winter STCI12 n/a Stipagrostis lanata (Forssk.) De Winter STLA21 n/a Stipagrostis Nees STIPA2 n/a Stipagrostis obtusa (Delile) Nees STOB4 n/a Stipagrostis pennata (Trin.) De Winter STPE14 n/a Stipagrostis pennata (Trin.) De Winter ssp. pennata STPEP n/a Stipagrostis plumosa (L.) Munro ex T. Anderson STPL7 n/a Stipagrostis uniplumis (Licht.) De Winter STUN2 n/a Stipagrostis uniplumis (Licht.) De Winter var. neesii (Trin. & Rupr.) De Winter STUNN n/a Taeniatherum caput-medusae (L.) Nevski ssp. crinitum (Schreb.) Melderis TACAC n/a Taeniatherum crinitum (Schreb.) Nevski [excluded] TACR2 n/a Tetrachne Nees TETRA24 n/a Tetrapogon Desf. TETRA19 n/a Tetrapogon villosum Desf. TEVI7 n/a Thaumastochloa C.E. Hubb. THAUM2 n/a Thaumastochloa pubescens (Domin) C. E. Hubb. THPU9 n/a Themeda anathera (Nees ex Steud.) Hack. THAN4 n/a Themeda japonica (Willd.) Tanaka THJA3 n/a Themeda quadrivalvis (L.) Kuntze var. helferi (Munro ex Hack.) Bor THQUH n/a Thyridolepis mitchelliana (Nees) S. T. Blake THMI16 n/a Thyridolepis S.T. Blake THYRI n/a Thysanolaena maxima (Roxb.) Kuntze [excluded] THMA12 n/a Thysanolaena Nees THYSA3 n/a Tribolium Desv. TRIBO n/a Tribolium echinatum (Thunb.) Renvoize TREC3 n/a Tribolium hispidum (Thunb.) Desv. TRHI10 n/a Tribolium uniolae (L. f.) Renvoize TRUN7 n/a Trichloris Fourn. ex Benth. TRICH21 n/a Tricholaena monachne (Trin.) Stapf & C. E. Hubb. TRMO18 n/a Tricholaena Schrad. TRICH28 n/a Tricholaena teneriffae (L. f.) Link TRTE10 n/a Tridens brasiliensis (Nees ex Steud.) Parodi TRBR14 n/a Triodia R.Br. TRIOD2 n/a Tripsacum australe H. C. Cutler & E. S. Anderson TRAU9 n/a Triraphis R. Br. TRIRA2 n/a Trisetum distichophyllum (Vill.) P. Beauv. TRDI16 n/a Trisetum latifolium A.S. Hitchc. [excluded] TRLA31 n/a Triticum compactum Host [excluded] TRCO20 n/a Triticum monococcum L. [excluded] TRMO22 n/a Triticum polonicum L. [excluded] TRPO14 n/a Urochloa ?antholeuca (Schinz) H. Scholz URAN n/a Urochloa bulbodes (Steud.) Stapf [excluded] URBU2 n/a Urochloa dictyoneura (Fig. & De Not.) Veldkamp URDI4 n/a Urochloa pullalans Stapf [excluded] URPU3 n/a Urochloa stolonifera (Gooss.) L. Chippindale [excluded] URST4 n/a Vulpia geniculata (L.) Link [excluded] VUGE2 n/a Vulpia ligustica (All.) Link VULI n/a Vulpia membranacea (L.) Dumort. VUME3 n/a Whiteochloa C.E. Hubb. WHITE n/a Whiteochloa cymbiformis (Hughes) B. K. Simon WHCY n/a Zea mays L. var. everta (Sturtev.) Bailey [excluded] ZEMAE n/a Zea mays L. var. japonica (Van Houtte) Wood [excluded] ZEMAJ n/a Zea mays L. var. tunicata Larr. ex St.-Hil. [excluded] ZEMAT n/a Zingeria P. Smirn. ZINGE n/a Zingeria pisidica (Boiss.) Tutin ZIPI 'Hycrest' Agropyron ?hybrid auct. AGHY2 ?Achnella caduca ?Stiporyzopsis caduca (Beal) B.L. Johnson & Rogler STCA13 ?Achnella caduca Oryzopsis caduca Beal ORCA9 ?Achnella caduca Stipa caduca (Beal) Scribn. STCA22 ?Agropogon littoralis Polypogon littoralis Sm. POLI5 ?Ammocalamagrostis baltica Ammophila baltica (Flugge ex Schrad.) Link AMBA7 ?Elyhordeum californicum ?Elytesion californicum (Bowden) Barkworth & D.R. Dewey ELCA26 ?Elyhordeum californicum ?Sitordeum californicum Bowden SICA21 ?Elyhordeum dakotense ?Elymordeum dakotense Bowden ELDA4 ?Elyhordeum dakotense ?Elytesion dakotense (Bowden) Barkworth & D.R. Dewey ELDA6 ?Elyhordeum iowense ?Elymordeum montanense (Scribn.) Bowden var. pubescens Bowden ELMOP3 ?Elyhordeum iowense ?Elytesion iowense (Pohl) Barkworth & D.R. Dewey ELIO2 ?Elyhordeum macounii ?Agrohordeum macounii (Vasey) Lepage AGMA8 ?Elyhordeum macounii ?Agrohordeum macounii (Vasey) Lepage var. valencianum Bowden AGMAV2 ?Elyhordeum macounii ?Elytesion macounii (Vasey) Barkworth & D.R. Dewey ELMA10 ?Elyhordeum macounii Elymus macounii Vasey ELMA9 ?Elyhordeum montanense ?Elymordeum montanense (Scribn.) Bowden ELMO8 ?Elyhordeum montanense ?Elytesion montanense (Scribn.) Barkworth & D.R. Dewey ELMO10 ?Elyhordeum montanense Hordeum montanense Scribn. HOMO3 ?Elyhordeum montanense Hordeum pammelii Scribn. & Ball HOPA5 ?Elyhordeum pilosilemma ?Agrohordeum pilosilemma Mitchell & Hodgson AGPI5 ?Elyhordeum pilosilemma ?Elytesion pilosilemma (Mitchell & Hodgson) Barkworth & Dewey ELPI9 ?Elyhordeum schaackianum ?Elymordeum schaackianum Bowden ELSC5 ?Elyhordeum schaackianum ?Elytesion schaackianum (Bowden) Barkworth & D.R. Dewey ELSC6 ?Elyhordeum stebbinsianum ?Elymordeum stebbinsianum Bowden ELST4 ?Elyhordeum stebbinsianum ?Elytesion stebbinsianum (Bowden) Barkworth & D.R. Dewey ELST6 ?Elyleymus aleuticus Elymus ?aleuticus (Hult?n) Bowden ELAL3 ?Elyleymus aristatus ?Elysitanion aristatum (Merr.) Bowden ELAR4 ?Elyleymus aristatus Elymus aristatus Merr. ELAR10 ?Elyleymus aristatus Elymus glaucus Buckl. var. aristatus (Merr.) A.S. Hitchc. ELGLA ?Elyleymus colvillensis ?Agroelymus colvillensis Lepage AGCO3 ?Elyleymus hirtiflorus ?Agroelymus hirtiflorus (A.S. Hitchc.) Bowden AGHI2 ?Elyleymus hirtiflorus ?Agroelymus ontariensis Lepage AGON ?Elyleymus hirtiflorus Elymus hirtiflorus A.S. Hitchc. ELHI2 ?Leydeum piperi ?Elyhordeum piperi (Bowden) Bowden ELPI7 ?Leydeum piperi ?Elymordeum piperi Bowden ELPI8 ?Leydeum piperi ?Elytesion piperi (Bowden) Barkworth ELPI10 ?Pseudelymus saxicola ?Agrositanion saxicola (Scribn. & J.G. Sm.) Bowden AGSA5 ?Pseudelymus saxicola Agropyron saxicola (Scribn. & J.G. Sm.) Piper AGSA2 ?Pseudelymus saxicola Elymus saxicola Scribn. & J.G. Sm. ELSA6 Abyssinia oxytenanthera Oxytenanthera abyssinica (A. Rich.) Munro OXAB2 Abyssinian oat Avena abyssinica Hochst. AVAB Acapulco grass Bouteloua dimorpha J.T. Columbus BODI6 Achnatherum ?bloomeri Oryzopsis bloomeri (Boland.) Ricker ORBL Achnatherum ?bloomeri Stipa bloomeri Boland. STBL4 Achnatherum ?bloomeri Stiporyzopsis bloomeri (Boland.) B.L. Johnson STBL5 Achnatherum aridum Stipa arida M.E. Jones STAR2 Achnatherum brachychaetum Nassella brachychaeta (Godr.) Barkworth NABR2 Achnatherum brachychaetum Stipa brachychaeta Godr. STBR3 Achnatherum bromoides Stipa aristella L. STAR14 Achnatherum bromoides Stipa bromoides (L.) Dorfl. STBR8 Achnatherum capense Stipa capensis Thunb. STCA25 Achnatherum capense Stipa tortilis Desf. STTO8 Achnatherum caragana Lasiagrostis caragana (Trin.) Trin. & Rupr. LACA13 Achnatherum caragana Stipa caragana Trin. STCA27 Achnatherum caudatum Stipa littoralis Phil. STLI4 Achnatherum clandestinum Stipa clandestina Hack. STCL5 Achnatherum contractum Oryzopsis contracta (B.L. Johnson) Schlechter ORCO3 Achnatherum contractum Oryzopsis hymenoides (Roemer & J.A. Schultes) Ricker ex Piper var. contracta B.L. Johnson ORHYC Achnatherum contractum Stipa contracta (B.L. Johnson) W.A. Weber STCO11 Achnatherum coronatum Stipa coronata Thurb. STCO5 Achnatherum curvifolium Stipa curvifolia Swallen STCU2 Achnatherum diegoense Stipa diegoensis Swallen STDI Achnatherum eminens Stipa eminens Cav. STEM2 Achnatherum hendersonii Oryzopsis hendersonii Vasey ORHE Achnatherum hendersonii Stipa hendersonii (Vasey) Muhl. STHE5 Achnatherum hymenoides Eriocoma cuspidata Nutt. ERCU9 Achnatherum hymenoides Oryzopsis hymenoides (Roemer & J.A. Schultes) Ricker ex Piper ORHY Achnatherum hymenoides Stipa hymenoides Roemer & J.A. Schultes STHY6 Achnatherum latiglume Stipa latiglumis Swallen STLA2 Achnatherum lemmonii Achnatherum lemmonii (Vasey) Barkworth ssp. lemmonii (Vasey) Barkworth [superfluous autonym] ACLEL2 Achnatherum lemmonii var. lemmonii Stipa lemmonii (Vasey) Scribn. STLE2 Achnatherum lemmonii var. lemmonii Stipa lemmonii (Vasey) Scribn. var. jonesii Scribn. STLEJ Achnatherum lemmonii var. pubescens Achnatherum lemmonii (Vasey) Barkworth ssp. pubescens (Crampton) Barkworth ACLEP2 Achnatherum lemmonii var. pubescens Stipa lemmonii (Vasey) Scribn. var. pubescens Crampton STLEP Achnatherum lettermanii Stipa lettermanii Vasey STLE4 Achnatherum lobatum Stipa lobata Swallen STLO3 Achnatherum nelsonii ssp. dorei Achnatherum nelsonii (Scribn.) Barkworth var. dorei (Barkworth & Maze) Dorn ACNED2 Achnatherum nelsonii ssp. dorei Stipa columbiana auct. non Macoun [misapplied] STCO3 Achnatherum nelsonii ssp. dorei Stipa minor (Vasey) Scribn. STMI6 Achnatherum nelsonii ssp. dorei Stipa nelsonii Scribn. ssp. dorei Barkworth & Maze STNED Achnatherum nelsonii ssp. dorei Stipa nelsonii Scribn. var. dorei (Barkworth & Maze) Dorn STNED2 Achnatherum nelsonii ssp. dorei Stipa occidentalis Thurb. ex S. Wats. var. minor sensu C.L. Hitchc., non (Vasey) C.L. Hitchc. STOCM Achnatherum nelsonii ssp. nelsonii Stipa columbiana Macoun var. nelsonii (Scribn.) St. John STCON2 Achnatherum nelsonii ssp. nelsonii Stipa nelsonii Scribn. STNE3 Achnatherum nelsonii ssp. nelsonii Stipa occidentalis Thurb. ex S. Wats. var. nelsonii (Scribn.) C.L. Hitchc. STOCN Achnatherum nelsonii ssp. nelsonii Stipa williamsii Scribn. STWI Achnatherum nevadense Stipa nevadensis B.L. Johnson STNE4 Achnatherum occidentale ssp. californicum Achnatherum nelsonii (Scribn.) Barkworth ssp. longiaristatum (Barkworth & Maze) Barkworth ACNEL2 Achnatherum occidentale ssp. californicum Stipa californica Merr. & Burtt-Davy STCA2 Achnatherum occidentale ssp. californicum Stipa nelsonii Scribn. var. longiaristata Barkworth & Maze STNEL3 Achnatherum occidentale ssp. californicum Stipa occidentalis Thurb. ex S. Wats. var. californica (Merr. & Burtt-Davy) C.L. Hitchc. STOCC Achnatherum occidentale ssp. occidentale Stipa occidentalis Thurb. ex S. Wats. STOC2 Achnatherum occidentale ssp. pubescens Stipa elmeri Piper & Brodie ex Scribn. STEL2 Achnatherum occidentale ssp. pubescens Stipa occidentalis Thurb. ex S. Wats. var. pubescens (Vasey) Maze, Taylor & MacBryde STOCP Achnatherum parishii var. depauperatum Stipa coronata Thurb. var. depauperata (M.E. Jones) A.S. Hitchc. STCOD Achnatherum parishii var. parishii Stipa coronata Thurb. var. parishii (Vasey) A.S. Hitchc. STCOP2 Achnatherum parishii var. parishii Stipa parishii Vasey STPA17 Achnatherum perplexum Stipa perplexa (Hoge & Barkworth) J. Wipff & S.D. Jones STPE10 Achnatherum pinetorum Stipa pinetorum M.E. Jones STPI2 Achnatherum richardsonii Stipa richardsonii Link STRI2 Achnatherum robustum Stipa robusta (Vasey) Scribn. STRO3 Achnatherum robustum Stipa vaseyi Scribn. STVA4 Achnatherum scribneri Stipa scribneri Vasey STSC2 Achnatherum speciosum Stipa speciosa Trin. & Rupr. STSP3 Achnatherum splendens Stipa splendens Trin. [excluded] STSP12 Achnatherum stillmanii Stipa stillmanii Boland. STST2 Achnatherum swallenii Oryzopsis swallenii C.L. Hitchc. & Spellenberg ORSW Achnatherum thurberianum Stipa thurberiana Piper STTH2 Achnatherum webberi Oryzopsis webberi (Thurb.) Benth. ex Vasey ORWE Achnatherum webberi Stipa webberi (Thurb.) B.L. Johnson STWE Acrachne racemosa Eleusine racemosa Roemer & J.A. Schultes ELRA5 acroceras Acroceras amplectens Stapf ACAM8 acroceras Acroceras Stapf ACROC4 Addison's rosette grass Dichanthelium ovale (Ell.) Gould & C.A. Clark var. addisonii (Nash) Gould & C.A. Clark DIOVA Aegilops cylindrica Aegilops cylindrica Host var. rubiginosa Popova AECYR Aegilops cylindrica Aegilops tauschii auct. non Coss. [misapplied] AETA3 Aegilops cylindrica Cylindropyrum cylindricum (Host) A. L?ve CYCY5 Aegilops cylindrica Triticum cylindricum (Host) Ces., Pass. & Gib. TRCY3 Aegilops geniculata Aegilops ovata L. p.p. AEOV2 Aegilops geniculata Triticum ovatum (L.) Gren. & Godr. p.p. TROV4 Aegilops lorentii Aegilops biuncialis Vis. AEBI2 Aegilops tauschii Aegilops squarrosa auct. AESQ2 Aegilops triuncialis Aegilops squarrosa L. AESQ Aegilops triuncialis Triticum persicum (Boiss.) Aitch. & Hemsley TRPE19 Aegilops triuncialis Triticum triunciale (L.) Raspail TRTR5 Aegopogon tenellus Aegopogon tenellus (DC.) Trin. var. abortivus (Fourn.) Beetle AETEA Aegopogon tenellus Lamarckia tenella DC. LATE4 Aeluropus lagopoides Aeluropus repens (Desf.) Parl. AERE2 African Bermudagrass Cynodon nlemfuensis Vanderyst CYNL80 African Bermudagrass Cynodon nlemfuensis Vanderyst var. nlemfuensis CYNLN African Bermudagrass Cynodon nlemfuensis Vanderyst var. robustus W.D. Clayton & Harlan CYNLR African bristlegrass Setaria sphacelata (Schumacher) Moss ex Stapf & C.E. Hubbard SESP5 African bristlegrass Setaria sphacelata (Schumacher) Moss var. sphacelata SESPS4 African couchgrass Digitaria abyssinica (Hochst. ex A. Rich.) Stapf DIAB African dogstooth grass Cynodon transvaalensis Burtt-Davy CYTR African feathergrass Pennisetum macrourum Trin. PEMA80 African finger millet Eleusine coracana (L.) Gaertn. ssp. africana (Kennedy & O'Byrne) Hilu & de Wet ELCOA African fodder cane Saccharum spontaneum L. ssp. aegyptiacum (Willd.) Hack. SASPA2 African liverseed grass Urochloa mosambicensis (Hack.) Dandy URMO80 African lovegrass Eragrostis echinochloidea Stapf EREC African rice Oryza glaberrima Steudel ORGL2 African signalgrass Urochloa arrecta (Hack. ex T. Dur. & Schinz) O. Morrone & F. Zuloaga URAR2 agropogon ?Agropogon Fourn. AGROP3 Agropyron cristatum ssp. pectinatum Agropyron cristatiforme Sarkar AGCR3 Agropyron cristatum ssp. pectinatum Agropyron pectinatum (Labill.) P. Beauv. AGPE6 Agropyron cristatum ssp. pectinatum Agropyron pectiniforme Roemer & J.A. Schultes AGPE5 Agropyron cristatum var. imbricatum Agropyron imbricatum Roem. & Schult. AGIM2 Agropyron desertorum Agropyron cristatum (L.) Gaertn. ssp. desertorum (Fisch. ex Link) A. L?ve AGCRD Agropyron desertorum Agropyron cristatum (L.) Gaertn. var. desertorum (Fisch. ex Link) Dorn AGCRD2 Agropyron fragile Agropyron cristatum (L.) Gaertn. ssp. fragile (Roth) A. L?ve AGCRF Agropyron fragile Agropyron cristatum (L.) Gaertn. var. fragile (Roth) Dorn AGCRF2 Agropyron fragile Agropyron fragile (Roth) P. Candargy ssp. mongolicum (Keng) D.R. Dewey AGFRM Agropyron fragile Agropyron fragile (Roth) P. Candargy ssp. sibiricum (Willd.) Melderis AGFRS Agropyron fragile Agropyron fragile (Roth) P. Candargy var. sibiricum (Willd.) Tzvelev AGFRS2 Agropyron fragile Agropyron mongolicum Keng AGMO6 Agropyron fragile Agropyron sibiricum (Willd.) Beauv. AGSI Agrostis aequivalvis Podagrostis aequivalvis (Trin.) Scribn. & Merr. POAE Agrostis avenacea Agrostis retrofracta Willd. AGRE5 Agrostis blasdalei Agrostis blasdalei A.S. Hitchc. var. marinensis Crampton AGBLM Agrostis blasdalei Agrostis breviculmis auct. non A.S. Hitchc. [misapplied] AGBR3 Agrostis canina Agrostis canina L. var. varians (Thuill.) Ducomm. AGCAV Agrostis capillaris Agrostis sylvatica Huds. AGSY2 Agrostis capillaris Agrostis tenuis Sibthorp AGTE Agrostis capillaris Agrostis tenuis Sibthorp var. aristata (Parnell) Druce AGTEA Agrostis capillaris Agrostis tenuis Sibthorp var. hispida (Willd.) Philipson AGTEH Agrostis capillaris Agrostis tenuis Sibthorp var. pumila (L.) Druce AGTEP Agrostis capillaris Agrostis vulgaris With. AGVU2 Agrostis curtisii Agrostis setacea Curtis AGSE6 Agrostis densiflora Agrostis californica Trin. AGCA3 Agrostis densiflora Agrostis glomerata auct. non (J. Presl) Kunth [misapplied] AGGL3 Agrostis elliottiana Agrostis exigua Thurb. AGEX2 Agrostis exarata Agrostis aenea Trin. AGAE2 Agrostis exarata Agrostis alaskana Hult AGAL2 Agrostis exarata Agrostis ampla A.S. Hitchc. AGAM2 Agrostis exarata Agrostis asperifolia Trin. AGAS4 Agrostis exarata Agrostis exarata Trin. ssp. minor (Hook.) C.L. Hitchc. AGEXM3 Agrostis exarata Agrostis exarata Trin. var. minor Hook. AGEXM Agrostis exarata Agrostis exarata Trin. var. monolepis (Torr.) A.S. Hitchc. AGEXM2 Agrostis exarata Agrostis exarata Trin. var. pacifica Vasey AGEXP2 Agrostis exarata Agrostis exarata Trin. var. purpurascens Hult AGEXP Agrostis exarata Agrostis longiligula A.S. Hitchc. AGLO2 Agrostis exarata Agrostis longiligula A.S. Hitchc. var. australis J.T. Howell AGLOA Agrostis exarata Agrostis melaleuca (Trin.) A.S. Hitchc. AGME Agrostis exarata Agrostis microphylla Steud. var. major Vasey AGMIM Agrostis gigantea Agrostis alba auct. non L. [misapplied] AGAL3 Agrostis gigantea Agrostis gigantea Roth var. dispar (Michx.) Philipson AGGID Agrostis gigantea Agrostis nigra With. AGNI Agrostis gigantea Agrostis stolonifera L. ssp. gigantea (Roth) Schuebl. & Martens AGSTG Agrostis gigantea Agrostis stolonifera L. var. major (Gaudin) Farw. AGSTM Agrostis hallii Agrostis hallii Vasey var. pringlei (Scribn.) A.S. Hitchc. AGHAP Agrostis hendersonii Agrostis aristiglumis Swallen AGAR2 Agrostis hendersonii Agrostis microphylla Steud. var. hendersonii (A.S. Hitchc.) Beetle AGMIH Agrostis humilis Agrostis thurberiana A.S. Hitchc. AGTH2 Agrostis humilis Podagrostis humilis (Vasey) Bj?rkman POHU Agrostis humilis Podagrostis thurberiana (A.S. Hitchc.) Hult POTH3 Agrostis hyemalis Agrostis antecedens Bickn. AGAN2 Agrostis hyemalis Cornucopiae hyemalis Walt. COHY2 Agrostis idahoensis Agrostis borealis Hartman var. recta (Hartman) Boivin AGBOR Agrostis idahoensis Agrostis clavata auct. non Trin. [misapplied] AGCL4 Agrostis idahoensis Agrostis filicumis M.E. Jones AGFI3 Agrostis mertensii Agrostis bakeri Rydb. AGBA5 Agrostis mertensii Agrostis borealis Hartman AGBO2 Agrostis mertensii Agrostis borealis Hartman var. americana (Scribn.) Fern. AGBOA3 Agrostis mertensii Agrostis borealis Hartman var. paludosa (Scribn.) Fern. AGBOP Agrostis mertensii Agrostis idahoensis Nash var. bakeri (Rydb.) W.A. Weber AGIDB Agrostis mertensii Agrostis mertensii Trin. ssp. borealis (Hartman) Tzvelev AGMEB Agrostis mertensii Agrostis rupestris auct. non All. [misapplied] AGRU2 Agrostis microphylla Agrostis inflata Scribn. AGIN7 Agrostis microphylla Agrostis microphylla Steud. var. intermedia Beetle AGMII Agrostis nebulosa Neoschischkinia nebulosa (Boiss. & Reut.) Tzvelev [excluded] NENE5 Agrostis pallens Agrostis diegoensis Vasey AGDI Agrostis pallens Agrostis lepida A.S. Hitchc. AGLE2 Agrostis pallens Agrostis pallens Trin. var. vaseyi St. John AGPAV Agrostis perennans Agrostis altissima (Walt.) Tuckerman AGAL8 Agrostis perennans Agrostis elata (Pursh) Trin. AGEL5 Agrostis perennans Agrostis oreophila Trin. AGOR3 Agrostis perennans Agrostis perennans (Walt.) Tuckerman var. aestivalis Vasey AGPEA Agrostis perennans Agrostis perennans (Walt.) Tuckerman var. elata (Pursh) A.S. Hitchc. AGPEE Agrostis perennans Agrostis schweinitzii Trin. AGSC6 Agrostis perennans Cornucopiae perennans Walt. COPE7 Agrostis rossiae Agrostis variabilis auct. non Rydb. [misapplied] AGVA4 Agrostis sandwicensis Agrostis fallax Hbd. AGFA Agrostis scabra Agrostis geminata Trin. AGGE2 Agrostis scabra Agrostis hyemalis (Walt.) B.S.P. var. geminata (Trin.) A.S. Hitchc. AGHYG Agrostis scabra Agrostis hyemalis (Walt.) B.S.P. var. scabra (Willd.) Blomquist AGHYS Agrostis scabra Agrostis hyemalis (Walt.) B.S.P. var. tenuis (Tuckerman) Gleason AGHYT Agrostis scabra Agrostis scabra Willd. ssp. septentrionalis (Fern.) A.& D. L?ve AGSCS4 Agrostis scabra Agrostis scabra Willd. var. geminata (Trin.) Swallen AGSCG Agrostis scabra Agrostis scabra Willd. var. septentrionalis Fern. AGSCS Agrostis stolonifera Agrostis alba L. var. palustris (Huds.) Pers. AGALP Agrostis stolonifera Agrostis alba L. var. stolonifera (L.) Sm. AGALS Agrostis stolonifera Agrostis maritima Lam. AGMA10 Agrostis stolonifera Agrostis palustris Huds. AGPA17 Agrostis stolonifera Agrostis stolonifera L. var. compacta Hartman AGSTC Agrostis stolonifera Agrostis stolonifera L. var. palustris (Huds.) Farw. AGSTP Agrostis tandilensis Agrostis kennedyana Beetle AGKE2 Agrostis variabilis Agrostis rossiae auct. non Vasey [misapplied] AGRO7 Agrostis vinealis Agrostis canina L. ssp. montana (Hartman) Hartman AGCAM3 Agrostis vinealis Agrostis canina L. var. montana Hartman AGCAM4 Agrostis vinealis Agrostis stricta J.F. Gmel. AGST5 Agrostis vinealis Agrostis trinii Turcz. AGTR4 Agrostis vinealis Agrostis vinealis Schreb. ssp. trinii (Turcz.) Tzvelev AGVIT Agrostis vinealis ssp. vinealis Agrostis canina L. var. arida Schltdl. AGCAA2 Aira caryophyllea ssp. multiculmis Aira multiculmis Dumort. AIMU Aira caryophyllea var. caryophyllea Aspris caryophyllea (L.) Nash ASCA22 Aira caryophyllea var. cupaniana Aira cupaniana Guss. AICU Aira elegans Aira capillaris Host, non Savi AICA3 Aira elegans Aira caryophyllea L. var. capillaris (Host) Mutel AICAC Aira elegans Aira elegans Willd. ex Kunth ssp. ambigua (Arcang.) Holub AIELA Aira elegans Aira elegantissima Schur AIEL2 Aira elegans Aspris capillaris (Host) A.S. Hitchc. ASCA23 Aira praecox Aspris praecox (L.) Nash ASPR14 Alaska alkaligrass Puccinellia kamtschatica Holmb. PUKA Alaska bluegrass Poa paucispicula Scribn. & Merr. POPA26 Alaska brome Bromus sitchensis Trin. BRSI Alaska fescue Festuca brevissima Jurtzev 2-Feb Alaska oniongrass Melica subulata (Griseb.) Scribn. MESU Alaska oniongrass Melica subulata (Griseb.) Scribn. var. subulata MESUS Alaskan bluegrass Poa hartzii Gandog. ssp. alaskana Soreng POHAA Alaskan wheatgrass Elymus alaskanus (Scribn. & Merr.) A. L?ve ELAL5 Alaskan wheatgrass Elymus alaskanus (Scribn. & Merr.) A. L?ve ssp. alaskanus ELALA2 Alaskan wheatgrass Elymus alaskanus (Scribn. & Merr.) A. L?ve ssp. latiglumis (Scribn. & J.G. Sm.) A. L?ve ELALL Aleutian brome Bromus aleutensis Trin. ex Griseb. BRAL6 Aleutian wildrye ?Elyleymus aleuticus (Hult?n) Baum [Elymus hirsutus ? Leymus mollis] ELAL4 alkali cordgrass Spartina gracilis Trin. SPGR alkali lovegrass Eragrostis obtusiflora (Fourn.) Scribn. EROB alkali sacaton Sporobolus airoides (Torr.) Torr. SPAI alkali wildrye Leymus simplex (Scribn. & Williams) D.R. Dewey LESI5 alkaligrass Puccinellia Parl. PUCCI Allolepis texana Distichlis texana (Vasey) Scribn. DITE8 Alloteropsis cimicina Coridochloa cimicina (L.) Nees ex Chase COCI Alopecurus aequalis var. aequalis Alopecurus aequalis Sobol. var. natans (Wahlenb.) Fern. ALAEN Alopecurus aequalis var. aequalis Alopecurus aristulatus Michx. ALAR5 Alopecurus aequalis var. aequalis Alopecurus geniculatus L. var. aristulatus (Michx.) Torr. ALGEA Alopecurus alpinus Alopecurus alpinus Sm. ssp. glaucus (Less.) Hult ALALG Alopecurus alpinus Alopecurus alpinus Sm. ssp. stejnegeri (Vasey) Hult ALALS Alopecurus alpinus Alopecurus alpinus Sm. var. borealis (Trin.) Griseb. ALALB Alopecurus alpinus Alopecurus alpinus Sm. var. glaucus (Less.) Krylov ALALG2 Alopecurus alpinus Alopecurus alpinus Sm. var. occidentalis (Scribn. & Tweedy) Boivin ALALO Alopecurus alpinus Alopecurus alpinus Sm. var. stejnegeri (Vasey) Hult ALALS2 Alopecurus alpinus Alopecurus borealis Trin. ALBO6 Alopecurus alpinus Alopecurus glaucus Less. ALGL8 Alopecurus alpinus Alopecurus occidentalis Scribn. & Tweedy ALOC7 Alopecurus arundinaceus Alopecurus ventricosus Pers., non (Gouan) Huds. ALVE Alopecurus carolinianus Alopecurus macounii Vasey ALMA15 Alopecurus carolinianus Alopecurus ramosus Poir. ALRA4 Alopecurus geniculatus var. geniculatus Alopecurus pallescens Piper ALPA9 Alopecurus myosuroides Alopecurus agrestis L. ALAG Alopecurus saccatus Alopecurus howellii Vasey ALHO3 alpine bentgrass Agrostis humilis Vasey AGHU alpine bluegrass Poa alpina L. POAL2 alpine fescue Festuca brachyphylla J.A. Schultes ex J.A. & J.H. Schultes FEBR alpine fescue Festuca brachyphylla J.A. Schultes ex J.A. & J.H. Schultes ssp. brachyphylla FEBRB alpine hairgrass Deschampsia nubigena Hbd. DENU6 alpine oatgrass Helictotrichon Bess. ex J.A. & J.H. Schultes HELIC alpine sweetgrass Hierochloe alpina (Sw. ex Willd.) Roemer & J.A. Schultes HIAL3 alpine sweetgrass Hierochloe alpina (Sw. ex Willd.) Roemer & J.A. Schultes ssp. alpina HIALA alpine sweetgrass Hierochloe alpina (Sw. ex Willd.) Roemer & J.A. Schultes ssp. orthantha (Sorensen) G. Weim. HIALO alpine timothy Phleum alpinum L. PHAL2 Altai fescue Festuca altaica Trin. FEAL Amazon sprangletop Leptochloa panicoides (J. Presl) A.S. Hitchc. LEPA3 amblyopyrum Amblyopyrum Eig AMBLY5 amblyopyrum Amblyopyrum muticum (Boiss.) Eig AMMU5 Amblyopyrum muticum Aegilops tripsacoides Jaub. & Spach AETR2 American alkaligrass Puccinellia americana Sorensen PUAM2 American beachgrass Ammophila breviligulata Fern. AMBR American beakgrain Diarrhena americana Beauv. DIAM American cupscale Sacciolepis striata (L.) Nash SAST American dunegrass Leymus mollis (Trin.) Pilger LEMO8 American dunegrass Leymus mollis (Trin.) Pilger ssp. mollis LEMOM2 American dunegrass Leymus mollis (Trin.) Pilger ssp. villosissimus (Scribn.) A. L?ve LEMOV American fiveminute grass Tripogon spicatus (Nees) Ekman TRSP American grama Bouteloua americana (L.) Scribn. BOAM2 American mannagrass Glyceria grandis S. Wats. GLGR American mannagrass Glyceria grandis S. Wats. var. grandis GLGRG American mannagrass Glyceria grandis S. Wats. var. komarovii L. Kelso GLGRK American milletgrass Milium effusum L. MIEF American milletgrass Milium effusum L. var. cisatlanticum Fern. MIEFC American sloughgrass Beckmannia syzigachne (Steud.) Fern. BESY Ampelodesmos mauritanicus Ampelodesmos mauritanica (Poir.) T. Dur. & Schinz [orthographic variant] AMMA2 Amphibromus scabrivalvis Helictotrichon scabrivalve (Trin.) G. Tucker HESC17 Amphicarpum muehlenbergianum Amphicarpum floridanum Chapman AMFL2 Amphicarpum purshii Amphicarpum amphicarpon (Pursh) Nash AMAM Amur silvergrass Miscanthus sacchariflorus (Maxim.) Franch. MISA Anderson's alkaligrass Puccinellia andersonii Swallen PUAN Andropogon arctatus Leptopogon carinatus (Nees) Roberty subvar. arctatus (Chapman) Roberty LECAA3 Andropogon capillipes Andropogon virginicus L. var. glaucus Hack. ANVIG2 Andropogon gerardii Andropogon chrysocomus Nash ANCH8 Andropogon gerardii Andropogon furcatus Muhl. ex Willd. ANFU5 Andropogon gerardii Andropogon gerardii Vitman var. chrysocomus (Nash) Fern. ANGEC Andropogon gerardii Andropogon provincialis Lam. ANPR3 Andropogon glaucopsis Andropogon glomeratus (Walt.) B.S.P. var. glaucopsis (Ell.) C. Mohr ANGLG Andropogon glaucopsis Andropogon virginicus L. var. glaucopsis (Ell.) A.S. Hitchc. ANVIG Andropogon glomeratus var. glomeratus Andropogon virginicus L. var. abbreviatus (Hack.) Fern. & Grisc. ANVIA Andropogon glomeratus var. glomeratus Andropogon virginicus L. var. corymbosus (Chapman ex Hack.) Fern. & Grisc. ANVIC2 Andropogon glomeratus var. glomeratus Cinna glomerata Walt. CIGL2 Andropogon glomeratus var. hirsutior Andropogon virginicus L. var. hirsutior (Hack.) A.S. Hitchc. ANVIH Andropogon glomeratus var. pumilus Andropogon tenuispatheus (Nash) Nash ANTE14 Andropogon gracilis Andropogon sericatus Swallen ANSE14 Andropogon gracilis Schizachyrium gracile (Spreng.) Nash SCGR2 Andropogon gracilis Schizachyrium sericatum (Swallen) Gould SCSE3 Andropogon gyrans var. gyrans Andropogon campyloracheus Nash ANCA3 Andropogon gyrans var. gyrans Andropogon elliottii Chapman ANEL Andropogon gyrans var. gyrans Andropogon elliottii Chapman var. gracilior Hack. ANELG Andropogon gyrans var. gyrans Andropogon elliottii Chapman var. projectus Fern. & Grisc. ANELP Andropogon gyrans var. gyrans Andropogon subtenuis Nash ANSU Andropogon gyrans var. stenophyllus Andropogon perangustatus Nash ANPE Andropogon gyrans var. stenophyllus Andropogon virginicus L. var. stenophyllus (Hack.) Fern. & Grisc. ANVIS2 Andropogon hallii Andropogon gerardii Vitman var. incanescens (Hack.) Boivin ANGEI Andropogon hallii Andropogon gerardii Vitman var. paucipilus (Nash) Fern. ANGEP Andropogon hallii Andropogon hallii Hack. var. incanescens Hack. ANHAI Andropogon hallii Andropogon paucipilus Nash ANPA8 Andropogon mohrii Anatherum virginicum (L.) Spreng. subvar. mohrii (Hack.) Roberty ANVIM3 Andropogon mohrii Andropogon liebmannii auct. non Hack. [misapplied] ANLI11 Andropogon mohrii Andropogon liebmannii Hack. var. pungensis (Ashe) C. Campbell ANLIP Andropogon ternarius var. cabanisii Andropogon cabanisii Hack. ANCA2 Andropogon ternarius var. ternarius Andropogon ternarius Michx. var. glaucescens (Scribn.) Fern. & Grisc. ANTEG Andropogon virginicus var. virginicus Anatherum virginicum (L.) Spreng. subvar. tetrastachyum (Ell.) Roberty ANVIT3 Andropogon virginicus var. virginicus Andropogon virginicus L. var. tetrastachyus (Ell.) Hack. ANVIT2 Angleton bluestem Dichanthium aristatum (Poir.) C.E. Hubbard DIAR5 animated oat Avena sterilis L. AVST annual bluegrass Poa annua L. POAN annual canarygrass Phalaris canariensis L. PHCA5 annual hairgrass Deschampsia danthonioides (Trin.) Munro DEDA annual muhly Muhlenbergia minutissima (Steud.) Swallen MUMI2 annual rabbitsfoot grass Polypogon monspeliensis (L.) Desf. POMO5 annual semaphoregrass Pleuropogon californicus (Nees) Benth. ex Vasey PLCA6 annual semaphoregrass Pleuropogon californicus (Nees) Benth. ex Vasey var. californicus PLCAC7 annual semaphoregrass Pleuropogon californicus (Nees) Benth. ex Vasey var. davyi (L. Benson) P.H. But PLCAD annual silver hairgrass Aira elegans Willd. ex Kunth AIEL4 annual vernalgrass Anthoxanthum aristatum Boiss. ANAR7 annual wheatgrass Eremopyrum triticeum (Gaertn.) Nevski ERTR13 annual wildrice Zizania aquatica L. ZIAQ annual wildrice Zizania aquatica L. var. aquatica ZIAQA2 annual wildrice Zizania aquatica L. var. brevis Fassett ZIAQB antelope grass Echinochloa pyramidalis (Lam.) Hitchc. & Chase ECPY2 Anthephora hermaphrodita Tripsacum hermaphrodita L. TRHE4 Anthoxanthum aristatum Anthoxanthum odoratum L. var. puelii (Lecoq & Lamotte) Coss. & Durieu ANODP Anthoxanthum aristatum Anthoxanthum puelii Lecoq & Lamotte ANPU3 aparejograss Muhlenbergia utilis (Torr.) A.S. Hitchc. MUUT Apera interrupta Agrostis interrupta L. AGIN4 Apera spica-venti Agrostis spica-venti L. AGSP2 Arabian schismus Schismus arabicus Nees SCAR Arctagrostis latifolia ssp. arundinacea Arctagrostis angustifolia Nash ARAN9 Arctagrostis latifolia ssp. arundinacea Arctagrostis angustifolia Nash var. crassispica Bowden ARANC Arctagrostis latifolia ssp. arundinacea Arctagrostis arundinacea (Trin.) Beal ARAR21 Arctagrostis latifolia ssp. arundinacea Arctagrostis latifolia (R. Br.) Griseb. var. angustifolia (Nash) Hult ARLAA2 Arctagrostis latifolia ssp. arundinacea Arctagrostis latifolia (R. Br.) Griseb. var. arundinacea (Trin.) Griseb. ARLAA Arctagrostis latifolia ssp. arundinacea Arctagrostis poaeoides Nash ARPO Arctagrostis latifolia ssp. latifolia Arctagrostis latifolia (R. Br.) Griseb. ssp. nahanniensis Porsild ARLAN Arctagrostis latifolia ssp. latifolia Arctagrostis latifolia (R. Br.) Griseb. var. longiglumis Polunin ARLAL5 Arctagrostis latifolia ssp. latifolia Colpodium latifolium R. Br. COLA11 arctic alkaligrass Puccinellia arctica (Hook.) Fern. & Weatherby PUAR arctic bentgrass Agrostis aequivalvis (Trin.) Trin. AGAE arctic bluegrass Poa arctica R. Br. POAR2 arctic bluegrass Poa arctica R. Br. ssp. aperta (Scribn. & Merr.) Soreng POARA arctic bluegrass Poa arctica R. Br. ssp. arctica POARA2 arctic bluegrass Poa arctica R. Br. ssp. grayana (Vasey) A.& D. L?ve & Kapoor POARG arctic bluegrass Poa arctica R. Br. ssp. lanata (Scribn. & Merr.) Soreng POARL4 arctic brome Bromus kalmii Gray BRKA2 Arctic lyme grass Leymus ajanensis (V. Vassil.) Tzvelev LEAJ arctic reedgrass Calamagrostis coarctata (Torr.) Eat. CACO71 arctic sweetgrass Hierochloe pauciflora R. Br. HIPA3 Arctophila fulva Colpodium fulvum (Trin.) Griseb. COFU arcuate barley ?Elyhordeum arcuatum Mitchell & Hodgson [Elymus sibiricus ? Hordeum jubatum] ELAR5 Argentina mountain bamboo Chusquea montana Phil. CHMO12 Argentine fingergrass Eustachys retusa (Lag.) Kunth EURE5 Argentine sprangletop Leptochloa chloridiformis (Hack.) Parodi LECH Argentinian quila Chusquea quila Kunth CHQU2 Aristida adscensionis Aristida adscensionis L. var. abortiva Beetle ARADA Aristida adscensionis Aristida adscensionis L. var. modesta Hack. ARADM Aristida adscensionis Aristida fasciculata Torr. ARFA4 Aristida beyrichiana Aristida stricta Michx. var. beyrichiana (Trin. & Rupr.) D.B. Ward ARSTB2 Aristida californica var. glabrata Aristida glabrata (Vasey) A.S. Hitchc. ARGL6 Aristida condensata Aristida condensata Chapman var. combsii (Scribn. & Ball) Henr. ARCOC7 Aristida dichotoma var. curtissii Aristida basiramea Engelm. ex Vasey var. curtissii (Gray ex S. Wats. & Coult.) Shinners ARBAC Aristida dichotoma var. curtissii Aristida curtissii (Gray ex S. Wats. & Coult.) Nash ARCU3 Aristida havardii Aristida barbata Fourn. ARBA Aristida lanosa Aristida lanosa Muhl. ex Ell. var. macera Fern. & Grisc. ARLAM Aristida longespica Aristida longispica Poir. [orthographic variant] ARLO2 Aristida longespica var. geniculata Aristida geniculata Raf. ARGE3 Aristida longespica var. geniculata Aristida intermedia Scribn. & Ball ARIN8 Aristida longespica var. geniculata Aristida intermedia Scribn. & Ball var. necopina (Shinners) Mohlenbrock ARINN Aristida longespica var. geniculata Aristida longispica Poir. var. geniculata (Raf.) Fern. [orthographic variant] ARLOG Aristida longespica var. geniculata Aristida necopina Shinners ARNE8 Aristida longespica var. longespica Aristida gracilis Ell. ARGR13 Aristida longespica var. longespica Aristida longispica Poir. var. longispica Poir. [orthographic variant] ARLOL2 Aristida oligantha Aristida ramosissima Engelm. ex Gray var. chaseana Henr. ARRAC Aristida palustris Aristida affinis auct. non (J.A. Schultes) Kunth [misapplied] ARAF2 Aristida pansa Aristida dissita I.M. Johnston ARDI14 Aristida pansa Aristida pansa Woot. & Standl. var. dissita (I.M. Johnston) Beetle ARPAD Aristida purpurascens var. purpurascens Aristida affinis (J.A. Schultes) Kunth ARAF Aristida purpurascens var. purpurascens Aristida purpurascens Poir. var. minor Vasey ARPUM3 Aristida purpurascens var. tenuispica Aristida tenuispica A.S. Hitchc. ARTE2 Aristida purpurascens var. virgata Aristida virgata Trin. ARVI5 Aristida purpurea var. fendleriana Aristida fendleriana Steud. ARFE4 Aristida purpurea var. longiseta Aristida longiseta Steud. ARLO3 Aristida purpurea var. longiseta Aristida longiseta Steud. var. rariflora A.S. Hitchc. ARLOR2 Aristida purpurea var. longiseta Aristida longiseta Steud. var. robusta Merr. ARLOR Aristida purpurea var. longiseta Aristida purpurea Nutt. var. robusta (Merr.) Piper ARPUR3 Aristida purpurea var. nealleyi Aristida glauca (Nees) Walp. ARGL7 Aristida purpurea var. nealleyi Aristida nealleyi (Vasey) Vasey ARNE9 Aristida purpurea var. nealleyi Aristida purpurea Nutt. var. glauca (Nees) A. & N. Holmgren ARPUG2 Aristida purpurea var. nealleyi Aristida reverchonii Vasey ARRE9 Aristida purpurea var. nealleyi Aristida stricta Michx. var. nealleyi Vasey ARSTN Aristida purpurea var. parishii Aristida parishii A.S. Hitchc. ARPA24 Aristida purpurea var. parishii Aristida wrightii Nash var. parishii (A.S. Hitchc.) Gould ARWRP Aristida purpurea var. purpurea Aristida purpurea Nutt. var. laxiflora Merr. ARPUL3 Aristida purpurea var. purpurea Aristida roemeriana Scheele ARRO3 Aristida purpurea var. wrightii Aristida brownii Warnock ARBR10 Aristida purpurea var. wrightii Aristida wrightii Nash ARWR Aristida schiedeana var. orcuttiana Aristida orcuttiana Vasey AROR2 Aristida ternipes var. gentilis Aristida hamulosa Henr. ARHA Aristida ternipes var. gentilis Aristida ternipes Cav. var. hamulosa (Henr.) Trent ARTEH Aristida ternipes var. gentilis Aristida ternipes Cav. var. minor (Vasey) A.S. Hitchc. ARTEM2 Arizona barley Hordeum arizonicum Covas HOAR Arizona bristlegrass Setaria arizonica Rominger SEAR7 Arizona brome Bromus arizonicus (Shear) Stebbins BRAR4 Arizona cottontop Digitaria californica (Benth.) Henr. DICA8 Arizona fescue Festuca arizonica Vasey FEAR2 Arizona muhly Muhlenbergia arizonica Scribn. MUAR3 Arizona needle grama Bouteloua aristidoides (Kunth) Griseb. var. arizonica M.E. Jones BOARA2 Arizona signalgrass Urochloa arizonica (Scribn. & Merr.) O. Morrone & F. Zuloaga URAR Arizona threeawn Aristida arizonica Vasey ARAR6 Arizona wheatgrass Elymus arizonicus (Scribn. & J.G. Sm.) Gould ELAR7 Arkansas mannagrass Glyceria arkansana Fern. GLAR Arrhenatherum album Arrhenatherum erianthum Boiss. & Reut. ARER6 Arrhenatherum elatius var. bulbosum Arrhenatherum elatius (L.) Beauv. ex J.& K. Presl ssp. bulbosum (Willd.) Sch?bler & G. Martens ARELB3 Arrhenatherum elatius var. bulbosum Arrhenatherum elatius (L.) Beauv. ex J.& K. Presl var. tuberosum Thiel. ARELT Arrhenatherum elatius var. elatius Arrhenatherum elatius (L.) Beauv. ex J.& K. Presl var. biaristatum (Peterm.) Peterm. ARELB2 Arrhenatherum elatius var. elatius Avena elatior L. AVEL Arrhenatherum longifolium Arrhenatherum thorei Durieu ARTH4 arrocillo Paspalum paniculatum L. PAPA11 arrow bamboo Pseudosasa japonica (Sieb. & Zucc. ex Steud.) Makino ex Nakai PSJA arrow bamboo Pseudosasa Makino ex Nakai PSEUD9 arrowfeather threeawn Aristida purpurascens Poir. ARPU8 arrowfeather threeawn Aristida purpurascens Poir. var. purpurascens ARPUP4 arrowfeather threeawn Aristida purpurascens Poir. var. tenuispica (A.S. Hitchc.) Allred ARPUT arrowfeather threeawn Aristida purpurascens Poir. var. virgata (Trin.) Allred ARPUV Arthraxon hispidus Arthraxon ciliaris Beauv. var. cryptatherus Hack. ARCIC Arthraxon hispidus Arthraxon hispidus (Thunb.) Makino var. cryptatherus (Hack.) Honda ARHIC2 Arthraxon hispidus Phalaris hispida Thunb. PHHI10 Arthrostylidium farctum Arthrostylidium capillifolium Griseb. ARCA16 Arundinaria gigantea ssp. gigantea Arundinaria gigantea (Walt.) Muhl. ssp. macrosperma (Michx.) McClure ARGIM Arundinaria gigantea ssp. tecta Arundinaria tecta (Walt.) Muhl. ARTE4 Arundinaria gigantea ssp. tecta Arundo tecta Walt. ARTE5 Arundinaria pygmaea Bambusa pygmaea Miq. BAPY2 Arundinaria pygmaea Sasa pygmaea (Miq.) E. G. Camus SAPY5 Arundinella hirta Arundinella anomala Steud. ARAN17 Arundinella hispida Arundinella confinis (J.A. Schultes) A.S. Hitchc. & Chase ARCO11 Arundinella hispida Piptatherum confine J.A. Schultes PICO6 Arundo donax Arundo donax L. var. versicolor (P. Mill.) Stokes ARDOV Arundo donax Arundo versicolor P. Mill. ARVE2 Ascherson's orchardgrass Dactylis glomerata L. ssp. aschersoniana (Graebn.) Thellung DAGLA Asia Minor bluegrass Polypogon fugax Nees ex Steud. POFU7 Asian crabgrass Digitaria bicornis (Lam.) Roemer & J.A. Schultes ex Loud. DIBI Asian watergrass Hygroryza aristata (Retz.) Nees HYAR9 Astrebla lappacea Danthonia lappacea Lindl. [excluded] DALA13 Astrebla pectinata Danthonia pectinata Lindl. [excluded] DAPE5 Atlantic mannagrass Glyceria obtusa (Muhl.) Trin. GLOB Australian brome Bromus arenarius Labill. BRAR3 Australian burr grass Tragus australianus S.T. Blake TRAU11 Australian fingergrass Chloris truncata R. Br. CHTR Australian lovegrass Eragrostis leptostachya (R. Br.) Steud. ERLE4 Australian millet Panicum decompositum R. Br. PADE18 Australian needlegrass Stipa elegantissima Labill. [excluded] STEL7 Australian panicgrass Entolasia marginata (R. Br.) Hughes ENMA5 Australian sprangletop Leptochloa decipiens (R. Br.) Stapf ex Maiden LEDE22 Australian wallaby grass Amphibromus neesii Steud. AMNE4 Australian windmill grass Chloris ventricosa R. Br. CHVE Austrostipa scabra ssp. falcata Stipa falcata Hughes STFA4 autumn bluegrass Poa autumnalis Muhl. ex Ell. POAU Avellinia michelii Colobanthium michelii (Savi) B. F. Osorio & Seraphim, nom. inval. [anomalous] COMI16 Avena barbata Avena hirsuta Moench AVHI Avena fatua Avena fatua L. var. glabrata Peterm. AVFAG Avena fatua Avena fatua L. var. vilis (Wallr.) Hausskn. AVFAV Avena fatua Avena hybrida Peterm. ex Reichenb. p.p. AVHY Avena maroccana Avena magna Murphy & Terrell AVMA2 Avena sativa Avena byzantina K. Koch AVBY Avena sativa Avena fatua L. var. sativa (L.) Hausskn. AVFAS Avena sativa Avena hybrida Peterm. ex Reichenb. p.p. AVHY Avena sativa Avena sativa L. var. orientalis (Schreb.) Alef. AVSAO Avena sterilis ssp. ludoviciana Avena ludoviciana Durieu [excluded] AVLU Avena sterilis ssp. ludoviciana Avena persica Steud. [excluded] AVPE2 Avena sterilis ssp. ludoviciana Avena sterilis L. var. ludoviciana (Durieu) Nyman [excluded] AVSTL4 Avenula hookeri Avena hookeri Scribn. AVHO2 Avenula hookeri Avenochloa hookeri (Scribn.) Holub AVHO Avenula hookeri Helictotrichon hookeri (Scribn.) Henr. HEHO8 Avenula pubescens Avena pubescens Huds. AVPU Avenula pubescens Helictotrichon pubescens (Huds.) Bess. ex Pilger HEPU4 awnless beardgrass Bothriochloa exaristata (Nash) Henr. BOEX awnless spiralgrass Tuctoria greenei (Vasey) J. Reeder TUGR Axonopus compressus Anastrophus compressus (Sw.) Schlecht. ex Doell ANCO8 Axonopus compressus Axonopus compressus (Sw.) P. Beauv. var. australis G. A. Black AXCOA Axonopus compressus Milium compressum Sw. MICO14 Axonopus fissifolius Axonopus affinis Chase AXAF Axonopus furcatus Anastrophus furcatus (Fluegg?) Nash ANFU2 Axonopus furcatus Panicum furcatum Fluegg PAFU4 Axonopus siccus Axonopus barbiger (Kunth) Hitchc. AXBA2 Baden's bluegrass Poa badensis Haenke ex Willd. POBA9 Baffin fescue Festuca baffinensis Polunin FEBA Bahia lovegrass Eragrostis bahiensis Schrad. ex J.A. Schultes ERBA bahiagrass Paspalum notatum Fluegg PANO2 bahiagrass Paspalum notatum Fluegg? var. latiflorum J. D?ll PANOL3 bahiagrass Paspalum notatum Fluegg? var. notatum PANON bahiagrass Paspalum notatum Fluegg? var. saurae Parodi PANOS Baker's crowngrass Paspalum bakeri Hook. PABA10 Baker's wheatgrass Elymus bakeri (E. Nels.) A. L?ve ELBA3 bald brome Bromus racemosus L. BRRA2 balsamscale grass Elionurus Humb. & Bonpl. ex Willd. ELION bamboo Bambusa arundinacea (Retz.) Willd. BAAR8 bamboo Bambusa longispiculata Gamble ex Brandis BALO4 bamboo Bambusa Schreb. BAMBU bamboo Bambusa tulda Roxb. BATU bamboo Phyllostachys Sieb. & Zucc. PHYLL6 bamboo Phyllostachys sulphurea (Carr.) A.& C. Rivi?re PHSU22 bamboo muhly Muhlenbergia dumosa Scribn. ex Vasey MUDU3 Bambusa longifolia Arundinaria longifolia Fourn. ARLO11 Bambusa multiplex Bambusa glaucescens (Willd.) Sieb. ex Munro BAGL3 Bambusa multiplex Bambusa nana Roxb. BANA3 Bambusa multiplex Ludolfia glaucescens Willd. LUGL6 Banff bluegrass Poa laxa Haenke ssp. banffiana Soreng POLAB barbas de indio Andropogon bicornis L. ANBI barbed bristlegrass Setaria verticilliformis Dunart. SEVE5 barbed goatgrass Aegilops triuncialis L. AETR barbgrass Hainardia cylindrica (Willd.) W. Greuter HACY barbgrass Hainardia W. Greuter HAINA barbwire grass Cymbopogon refractus (R. Br.) A. Camus CYRE barefoot panicgrass Panicum psilopodium Trin. PAPS12 barley ?Elyhordeum Mansf. ex Zizin & Petrowa ELYHO barley Hordeum L. HORDE barley Mitchell grass Astrebla pectinata (Lindl.) F. Muell. [excluded] ASPE20 barnyardgrass Echinochloa crus-galli (L.) Beauv. ECCR Barth's rice Oryza barthii A. Chev. ORBA6 Barundi dropseed Sporobolus piliferus (Trin.) Kunth SPPI2 basin wildrye Leymus cinereus (Scribn. & Merr.) A. L?ve LECI4 basketgrass Oplismenus Beauv. OPLIS beachgrass Ammophila Host AMMOP beaked panicgrass Panicum anceps Michx. PAAN beakgrain Diarrhena Beauv. DIARR bearded cupgrass Eriochloa aristata Vasey ERAR5 bearded fescue Festuca subulata Trin. FESU bearded melicgrass Melica aristata Thurb. ex Boland. MEAR3 bearded shorthusk Brachyelytrum erectum (Schreb. ex Spreng.) Beauv. BRER2 bearded skeletongrass Gymnopogon ambiguus (Michx.) B.S.P. GYAM bearded sprangletop Leptochloa fusca (L.) Kunth ssp. fascicularis (Lam.) N. Snow LEFUF bearded wheatgrass Elymus caninus (L.) L. ELCA11 bearded wheatgrass Elymus subsecundus (Link) A. Love & D. Love ELSU3 beardgrass Bothriochloa Kuntze BOTHR beardless rabbitsfoot grass Polypogon viridis (Gouan) Breistr. POVI9 beardless wheatgrass Pseudoroegneria spicata (Pursh) A. L?ve ssp. inermis (Scribn. & J.G. Sm.) A. L?ve PSSPI beardless wildrye Leymus triticoides (Buckl.) Pilger LETR5 Beckmannia syzigachne Beckmannia eruciformis (L.) Host ssp. baicalensis (Kusnez.) Hult BEERB Beckmannia syzigachne Beckmannia eruciformis (L.) Host var. uniflora Scribn. ex Gray BEERU Beckmannia syzigachne Beckmannia eruciformis auct. non (L.) Host [misapplied] BEER2 Beckmannia syzigachne Beckmannia syzigachne (Steud.) Fern. ssp. baicalensis (Kusnez.) Koyama & Kawano BESYB Beckmannia syzigachne Beckmannia syzigachne (Steud.) Fern. var. uniflora (Scribn. ex Gray) Boivin BESYU bedgrass Ichnanthus Beauv. ICHNA Beechey's bamboo Bambusa beecheyana Munro BABE2 bent alkaligrass Puccinellia agrostidea Sorensen PUAG bentgrass Agrostis castellana Boiss. & Reuter AGCA11 bentgrass Agrostis L. AGROS2 bentspike fountaingrass Pennisetum nervosum (Nees) Trin. PENE4 Berg's panicgrass Panicum bergii Arech. PABE4 Bering hairgrass Deschampsia brevifolia R. Br. DEBR2 Bering's tufted hairgrass Deschampsia beringensis Hult DEBE2 Bermudagrass Cynodon dactylon (L.) Pers. CYDA Bermudagrass Cynodon L.C. Rich. CYNOD Beyrich threeawn Aristida beyrichiana Trin. & Rupr. ARBE7 Big Bend bluegrass Poa strictiramea A.S. Hitchc. POST6 big bluestem Andropogon gerardii Vitman ANGE big carpetgrass Axonopus furcatus (Fluegg?) A.S. Hitchc. AXFU big cordgrass Spartina cynosuroides (L.) Roth SPCY big galleta Pleuraphis rigida Thurb. PLRI3 big quakinggrass Briza maxima L. BRMA big sacaton Sporobolus wrightii Munro ex Scribn. SPWR2 big sandbur Cenchrus myosuroides Kunth CEMY big squirreltail Elymus multisetus M.E. Jones ELMU3 Bigelow's bluegrass Poa bigelovii Vasey & Scribn. POBI Bigelow's desertgrass Blepharidachne bigelovii (S. Wats.) Hack. BLBI bigleaf bristlegrass Setaria megaphylla (Steud.) T. Dur. & Schinz SEME6 bigleaf paspalum Paspalum macrophyllum Kunth PAMA80 bigtop lovegrass Eragrostis hirsuta (Michx.) Nees ERHI billion-dollar grass Echinochloa frumentacea Link ECFR birdbill woodoats Chasmanthium ornithorhynchum (Steud.) Yates CHOR3 birdwood grass Cenchrus setiger Vahl CESE10 bitter panicgrass Panicum amarum Ell. PAAM2 bitter panicgrass Panicum amarum Ell. var. amarulum (A.S. Hitchc. & Chase) P.G. Palmer PAAMA2 bitter panicgrass Panicum amarum Ell. var. amarum PAAMA3 black bamboo Phyllostachys nigra (Lodd. ex Lindl.) Munro PHNI80 black bristlegrass Setaria nigrirostris (Nees) T. Dur. & Schinz SENI2 black dropseed Sporobolus interruptus Vasey SPIN5 black fonio Digitaria iburua Stapf [excluded] DIIB2 black grama Bouteloua eriopoda (Torr.) Torr. BOER4 black vetivergrass Vetiveria nigritana (Benth.) Stapf VENI4 black-heads Enneapogon nigricans (R. Br.) P. Beauv. ENNI2 blackseed ricegrass Piptatherum racemosum (Sm.) Barkworth PIRA5 blackseed speargrass Piptochaetium avenaceum (L.) Parodi PIAV Blasdale bentgrass Agrostis blasdalei A.S. Hitchc. AGBL Blepharoneuron tricholepis Vilfa tricholepis Torr. VITR12 Blodgett's crowngrass Paspalum blodgettii Chapman PABL blood panicgrass Dichanthelium consanguineum (Kunth) Gould & C.A. Clark DICO4 bloodgrass Isachne R. Br. ISACH blowout grass Redfieldia flexuosa (Thurb.) Vasey REFL blowout grass Redfieldia Vasey REDFI blue crowngrass Paspalum caespitosum Fluegg PACA12 blue grama Bouteloua gracilis (Willd. ex Kunth) Lag. ex Griffiths BOGR2 blue lawngrass Garnotia stricta Brongn. GAST3 blue maidencane Amphicarpum purshii Kunth AMPU6 blue panicum Panicum antidotale Retz. PAAN4 blue threeawn Aristida purpurea Nutt. var. nealleyi (Vasey) Allred ARPUN blue wildrye Elymus glaucus Buckl. ELGL blue wildrye Elymus glaucus Buckl. ssp. glaucus ELGLG blue wildrye Elymus glaucus Buckl. ssp. virescens (Piper) Gould ELGLV bluebunch wheatgrass Pseudoroegneria spicata (Pursh) A. L?ve PSSP6 bluebunch wheatgrass Pseudoroegneria spicata (Pursh) A. L?ve ssp. spicata PSSPS bluegrass Poa L. POA bluejoint Calamagrostis canadensis (Michx.) Beauv. CACA4 bluejoint Calamagrostis canadensis (Michx.) Beauv. var. canadensis CACAC10 bluejoint Calamagrostis canadensis (Michx.) Beauv. var. langsdorfii (Link) Inman CACAL3 bluejoint panicgrass Panicum tenerum Bey. ex Trin. PATE3 bluestem Andropogon gayanus Kunth ANGA3 bluestem Andropogon L. ANDRO2 bluestem Dichanthium Willem. DICHA3 boat thatching grass Hyparrhenia cymbaria (L.) Stapf HYCY2 bobtail barley Hordeum intercedens Nevski HOIN2 Boehmer's cat's-tail Phleum phleoides (L.) H. Karst. PHPH6 bog alkaligrass Puccinellia parishii A.S. Hitchc. PUPA bog bluegrass Poa paludigena Fern. & Wieg. POPA bog hair grass Deschampsia setacea (Huds.) Hack. DESE3 bog muhly Muhlenbergia uniflora (Muhl.) Fern. MUUN bog rosette grass Dichanthelium hillebrandianum (A.S. Hitchc.) C.A. Clark & Gould DIHI2 Bolander's bluegrass Poa bolanderi Vasey POBO Bolander's reedgrass Calamagrostis bolanderi Thurb. CABO Bolander's woodreed Cinna bolanderi Scribn. CIBO2 Bolivian panicgrass Panicum boliviense Hack. PABO7 boreal alopecurus Alopecurus alpinus Sm. ALAL2 borinda Borinda Stapleton BORIN Bosc's panicgrass Dichanthelium boscii (Poir.) Gould & C.A. Clark DIBO2 Bothriochloa alta Andropogon altus A.S. Hitchc. ANAL10 Bothriochloa barbinodis Andropogon barbinodis Lag. ANBA6 Bothriochloa barbinodis Andropogon perforatus Trin. ex Fourn. ANPE14 Bothriochloa barbinodis Bothriochloa barbinodis (Lag.) Herter var. palmeri (Hack.) de Wet BOBAP2 Bothriochloa barbinodis Bothriochloa barbinodis (Lag.) Herter var. perforata (Trin. ex Fourn.) Gould BOBAP Bothriochloa barbinodis Bothriochloa palmeri (Hack.) Gould BOPA4 Bothriochloa bladhii Andropogon bladhii Retz. ANBL3 Bothriochloa bladhii Andropogon caucasicus Trin. ANCA20 Bothriochloa bladhii Andropogon intermedius R. Br. ANIN7 Bothriochloa bladhii Bothriochloa caucasica (Trin.) C.E. Hubbard BOCA3 Bothriochloa bladhii Bothriochloa intermedia (R. Br.) A. Camus BOIN80 Bothriochloa bladhii ssp. glabra Bothriochloa glabra (Roxb.) A. Camus BOGL8 Bothriochloa edwardsiana Andropogon edwardsianus Gould ANED3 Bothriochloa exaristata Andropogon exaristatus (Nash) A.S. Hitchc. ANEX3 Bothriochloa exaristata Andropogon hassleri Hack. ANHA2 Bothriochloa exaristata Bothriochloa hassleri (Hack.) Cabrera BOHA Bothriochloa hybrida Andropogon hybridus Gould ANHY3 Bothriochloa ischaemum Dichanthium ischaemum (L.) Roberty DIIS5 Bothriochloa ischaemum var. ischaemum Amphilophis ischaemum (L.) Nash AMIS Bothriochloa ischaemum var. ischaemum Andropogon ischaemum L. ANIS3 Bothriochloa ischaemum var. songarica Andropogon ischaemum L. var. songaricus Rupr. ex Fisch. & C.A. Mey. ANISS Bothriochloa laguroides ssp. torreyana Andropogon saccharoides Sw. var. torreyanus (Steud.) Hack. ANSAT2 Bothriochloa laguroides ssp. torreyana Bothriochloa saccharoides (Sw.) Rydb. var. torreyana (Steud.) Gould BOSAT Bothriochloa laguroides ssp. torreyana Dichanthium saccharoides (Sw.) Roberty subvar. torreyanum (Steud.) Roberty DISAT4 Bothriochloa longipaniculata Andropogon saccharoides Sw. var. longipaniculatus Gould ANSAL Bothriochloa longipaniculata Bothriochloa saccharoides (Sw.) Rydb. var. longipaniculata (Gould) Gould BOSAL Bothriochloa pertusa Andropogon pertusus (L.) Willd. ANPE7 Bothriochloa pertusa Holcus pertusus L. HOPE3 Bothriochloa saccharoides Amphilophis saccharoides (Sw.) Nash AMSA3 Bothriochloa saccharoides Andropogon saccharoides Sw. ANSA5 Bothriochloa springfieldii Andropogon springfieldii Gould ANSP5 Bothriochloa wrightii Andropogon wrightii Hack. ANWR5 bottlebrush threeawn Aristida spiciformis Ell. ARSP3 Bouteloua americana Aristida americana L. ARAM4 Bouteloua barbata Bouteloua arenosa Vasey BOAR3 Bouteloua barbata Bouteloua barbata Lag. var. barbata Lag. [superfluous autonym] BOBAB3 Bouteloua barbata Chondrosum barbata (Lagasca) W.D. Clayton CHBA12 Bouteloua barbata Chondrosum exile Fourn. CHEX3 Bouteloua barbata Chondrosum microstachyum Fourn. CHMI15 Bouteloua barbata Chondrosum polystachyum Benth. CHPO9 Bouteloua barbata Chondrosum subscorpioides C. Muell. CHSU12 Bouteloua chondrosioides Chondrosum humboldtianum Kunth CHHU5 Bouteloua chondrosioides Dinebra chondrosioides Kunth DICH6 Bouteloua curtipendula var. curtipendula Atheropogon curtipendulus (Michx.) Fourn. ATCU2 Bouteloua curtipendula var. curtipendula Chloris curtipendula Michx. CHCU8 Bouteloua dactyloides Buchloe dactyloides (Nutt.) Engelm. BUDA Bouteloua dactyloides Bulbilis dactyloides (Nutt.) Raf. ex Kuntze BUDA3 Bouteloua dactyloides Sesleria dactyloides Nutt. SEDA Bouteloua dimorpha Opizia stolonifera J. Presl OPST4 Bouteloua eriopoda Chondrosum eriopodum Torr. CHER4 Bouteloua gracilis Bouteloua gracilis (Willd. ex Kunth) Lag. ex Griffiths var. stricta (Vasey) A.S. Hitchc. BOGRS Bouteloua gracilis Bouteloua oligostachya (Nutt.) Torr. ex Gray BOOL Bouteloua gracilis Chondrosum gracile Willd. ex Kunth CHGR15 Bouteloua gracilis Chondrosum oligostachyum (Nutt.) Torr. CHOL5 Bouteloua hirsuta var. hirsuta Bouteloua glandulosa (Cerv.) Swallen BOGL5 Bouteloua hirsuta var. hirsuta Bouteloua hirsuta Lag. var. glandulosa (Cerv.) Gould BOHIG Bouteloua hirsuta var. hirsuta Chondrosum hirsutum (Lag.) Kunth CHHI9 Bouteloua hirsuta var. pectinata Bouteloua hirsuta Lag. ssp. pectinata (Featherly) J. Wipff & S.D. Jones BOHIP2 Bouteloua hirsuta var. pectinata Bouteloua pectinata Featherly BOPE3 Bouteloua parryi Chondrosum parryi Fourn. CHPA19 Bouteloua radicosa Atheropogon radicosus Fourn. ATRA Bouteloua repens Bouteloua filiformis (Fourn.) Griffiths BOFI2 Bouteloua repens Bouteloua heterostega (Trin.) Griffiths BOHE4 Bouteloua repens Dinebra repens Kunth DIRE9 Bouteloua rothrockii Bouteloua barbata Lag. var. rothrockii (Vasey) Gould BOBAR Bouteloua simplex Chondrosum procumbens Desv. ex Beauv. CHPR11 Bouteloua simplex Chondrosum prostratum (Lag.) Sweet CHPR12 Bouteloua trifida var. burkii Chondrosum trinii Fourn. CHTR9 Brachiaria eruciformis Panicum eruciforme Sm. PAER5 Brachiaria mollis Panicum molle Sw. [excluded] PAMO19 Brachyelytrum aristosum Brachyelytrum aristosum (Michx.) Trel. var. glabratum Vasey ex Millsp. BRARG Brachyelytrum aristosum Brachyelytrum erectum (Schreb. ex Spreng.) Beauv. var. glabratum (Vasey ex Millsp.) Koyama & Kawano BRERG Brachyelytrum aristosum Brachyelytrum erectum (Schreb. ex Spreng.) Beauv. var. septentrionale Babel BRERS Brachyelytrum aristosum Brachyelytrum septentrionale (Babel) G. Tucker BRSE2 Brachypodium distachyon Bromus distachyos L. BRDI9 Brachypodium distachyon Trachynia distachya (L.) Link TRDI10 Brachypodium phoenicoides Brachypodium mucronatum Willk. BRMU7 Brachypodium retusum Brachypodium ramosum (L.) Roem. & Schult. BRRA7 Brachypodium rupestre ssp. caespitosum Brachypodium caespitosum (Host) Roemer & J.A. Schultes BRCA26 Brachypodium rupestre ssp. caespitosum Brachypodium cespitosum (Host) Roem. & Schult. [orthographic variant] BRCE3 Brachypodium rupestre ssp. caespitosum Brachypodium rupestre (Host) Roem. & Schult. ssp. cespitosum (Host) H. Scholz [orthographic variant] BRRUC Brachypodium rupestre ssp. caespitosum Brachypodum caespitosum (Host) Roemer & J.A. Schultes [orthographic error] BRCA29 Brachypodium rupestre ssp. caespitosum Brachypodum pinnatum (L.) Beauv. ssp. caespitosum (Host) Hack. [orthographic error] BRPIC2 Brachypodium sylvaticum Festuca sylvatica Huds. FESY Braun's festulolium ?Festulolium braunii (K. Richter) A. Camus 6-Feb Brazilian bristlegrass Setaria rariflora Mikan ex Trin. SERA2 Brazilian satintail Imperata brasiliensis Trin. IMBR Brazilian watergrass Luziola bahiensis (Steud.) A.S. Hitchc. LUBA2 brigalow grass Setaria brigalow R. D. Webster SEBR6 bristle basketgrass Oplismenus hirtellus (L.) Beauv. OPHI bristle basketgrass Oplismenus hirtellus (L.) Beauv. ssp. hirtellus OPHIH bristle bent Agrostis curtisii Kerguelen AGCU4 bristlegrass Setaria Beauv. SETAR bristleleaf lovegrass Eragrostis chaetophylla Steud. ERCH15 bristly dogstail grass Cynosurus echinatus L. CYEC bristly lovegrass Cladoraphis cyperoides (Thunb.) S.M. Phillips CLCY2 bristly lovegrass Cladoraphis Franch. CLADO bristly speargrass Piptochaetium setosum (Trin.) Arech. PISE4 bristly wolfstail Lycurus setosus (Nutt.) C.G. Reeder LYSE3 British alkaligrass Puccinellia rupestris (With.) Fern. & Weatherby PURU British timothy Phleum paniculatum Huds. PHPA8 Briza humilis Briza spicata Sibth. & Smith BRSP6 Briza lamarckiana Briza fusca (Parodi) Parodi BRFU5 Briza lamarckiana Chascolytrum lamarckianum (Nees) Matthei CHLA23 Briza media ssp. elatior Briza australis Prokudin BRAU3 Briza media ssp. elatior Briza elatior Sm. BREL4 Briza subaristata Briza stricta (Hook. & Arn.) Steud. BRST9 Briza subaristata Briza triloba Nees BRTR9 Briza subaristata Chascolytrum subaristatum (Lam.) Desv. CHSU17 broad stalkgrass Pharus latifolius L. PHLA2 broadleaf bamboo Sasa Makino & Shib. SASA20 broadleaf bamboo Sasa palmata (hort. ex Burb.) E.G. Camas SAPA31 broadleaf bluegrass Poa chaixii Vill. POCH broadleaf carpetgrass Axonopus compressus (Sw.) Beauv. AXCO broadleaf panicum Panicum deustum Thunb. PADE20 broadleaf rice Oryza latifolia Desv. ORLA3 broadleaf rosette grass Dichanthelium latifolium (L.) Gould & C.A. Clark DILA8 broadleaf signalgrass Urochloa platyphylla (Nash) R. Webster URPL2 brome Bromus L. BROMU brome fescue Vulpia bromoides (L.) S.F. Gray VUBR Bromus aleutensis Bromus sitchensis Trin. var. aleutensis (Trin. ex Griseb.) Hult BRSIA Bromus anomalus Bromopsis anomala (Rupr. ex Fourn.) Holub BRAN3 Bromus arvensis Bromus japonicus Thunb. ex Murr. BRJA Bromus arvensis Bromus japonicus Thunb. ex Murr. var. porrectus Hack. BRJAP Bromus arvensis Bromus patulus Mert. & Koch BRPA10 Bromus berteroanus Bromus berterianus Colla [orthographic variant] BRBE2 Bromus berteroanus Bromus trinii Desv. BRTR2 Bromus berteroanus Bromus trinii Desv. var. excelsus Shear BRTRE Bromus berteroanus Trisetobromus hirtus (Trin.) Nevski TRHI6 Bromus biebersteinii Bromopsis biebersteinii (Roemer & J.A. Schultes) Holub [excluded] BRBI9 Bromus brachyanthera ssp. uruguayensis Bromus uruguayensis Arechav. BRUR2 Bromus briziformis Bromus brizaeformis Fischer & C. Meyer [orthographic variant] BRBR7 Bromus bromoideus Bromus arduennensis Dumort. BRAR18 Bromus carinatus Bromus carinatus Hook. & Arn. var. californicus (Nutt. ex Buckl.) Shear BRCAC2 Bromus carinatus Bromus carinatus Hook. & Arn. var. carinatus Hook. & Arn. [superfluous autonym] BRCAC8 Bromus carinatus Bromus carinatus Hook. & Arn. var. hookerianus (Thurb.) Shear BRCAH Bromus carinatus Bromus laciniatus Beal BRLA19 Bromus carinatus Ceratochloa carinata (Hook. & Arn.) Tutin CECA11 Bromus catharticus Bromus brevis Nees ex Steud. BRBR81 Bromus catharticus Bromus haenkeanus (J. Presl) Kunth BRHA Bromus catharticus Bromus unioloides Kunth BRUN Bromus catharticus Bromus willdenowii Kunth BRWI Bromus catharticus Ceratochloa cathartica (Vahl) Herter CECA12 Bromus catharticus Ceratochloa unioloides (Willd.) Beauv. CEUN3 Bromus catharticus Ceratochloa willdenowii (Kunth) W.A. Weber CEWI Bromus catharticus Festuca unioloides Willd. FEUN Bromus ciliatus var. ciliatus Bromopsis canadensis (Michx.) Holub BRCA10 Bromus ciliatus var. ciliatus Bromopsis ciliata (L.) Holub BRCI7 Bromus ciliatus var. ciliatus Bromus canadensis Michx. BRCA9 Bromus ciliatus var. ciliatus Bromus ciliatus L. var. genuinus Fern. BRCIG Bromus ciliatus var. ciliatus Bromus ciliatus L. var. intonsus Fern. BRCII Bromus ciliatus var. ciliatus Bromus dudleyi Fern. BRDU2 Bromus ciliatus var. ciliatus Bromus richardsonii Link var. pallidus (Hook.) Shear BRRIP Bromus ciliatus var. richardsonii Bromopsis canadensis (Michx.) Holub ssp. richardsonii (Link) Tzvelev BRCAR3 Bromus ciliatus var. richardsonii Bromopsis richardsonii (Link) Holub BRRI4 Bromus ciliatus var. richardsonii Bromus richardsonii Link BRRI2 Bromus diandrus ssp. diandrus Anisantha diandra (Roth) Tutin ex Tzvelev ANDI6 Bromus diandrus ssp. diandrus Bromus gussonei Parl. BRGU Bromus diandrus ssp. diandrus Bromus rigidus Roth var. gussonei (Parl.) Coss. & Durieu BRRIG Bromus diandrus ssp. rigidus Anisantha rigida (Roth) Hyl. ANRI4 Bromus diandrus ssp. rigidus Bromus diandrus Roth var. rigidus (Roth) Sales BRDIR2 Bromus diandrus ssp. rigidus Bromus maximus Desf., non Gilib. BRMA6 Bromus diandrus ssp. rigidus Bromus rigidus Roth BRRI8 Bromus diandrus ssp. rigidus Bromus villosus Forssk., non Scop. BRVI9 Bromus erectus Bromopsis erecta (Huds.) Fourr. BRER6 Bromus erectus Bromus erectus Huds. var. hackelii Borbas BRERH Bromus frondosus Bromopsis frondosa (Shear) Holub BRFR5 Bromus grandis Bromopsis grandis (Shear) Holub BRGR7 Bromus grossus Bromus secalinus L. ssp. grossus (Desf. ex DC.) Domin BRSEG Bromus grossus Bromus secalinus L. var. grossus (Desf. ex DC.) Neilr. BRSEG2 Bromus grossus Bromus secalinus L. var. velutinus (Schrad.) Koch BRSEV Bromus hordeaceus ssp. divaricatus Bromus hordeaceus L. ssp. molliformis (Lloyd) Maire & Weiller BRHOM Bromus hordeaceus ssp. divaricatus Bromus molliformis Lloyd BRMO Bromus hordeaceus ssp. ferronii Bromus ferronii Mabille BRFE6 Bromus hordeaceus ssp. hordeaceus Bromus mollis auct. non L. [misapplied] BRMO2 Bromus hordeaceus ssp. pseudothominii Bromus mollis L. var. leiostachys Hartman BRMOL Bromus hordeaceus ssp. pseudothominii Bromus pseudothominii P.M. Sm. (pro hybr.) BRPS11 Bromus hordeaceus ssp. thominei Bromus thominei Hardham ex Nyman BRTH2 Bromus inermis ssp. inermis var. inermis Bromopsis inermis (Leyss.) Holub BRIN7 Bromus inermis ssp. pumpellianus Bromus sibiricus Drobow BRSI4 Bromus inermis ssp. pumpellianus var. arcticus Bromopsis pumpelliana (Scribn.) Holub ssp. arctica (Shear ex Scribn. & Merr.) A.& D. L?ve BRPUA Bromus inermis ssp. pumpellianus var. arcticus Bromus inermis Leyss. var. aristatus Schur ex Scribn. & Merr. BRINA2 Bromus inermis ssp. pumpellianus var. arcticus Bromus pumpellianus Scribn. var. arcticus (Shear ex Scribn. & Merr.) Porsild BRPUA2 Bromus inermis ssp. pumpellianus var. pumpellianus Bromopsis dicksonii (Mitchell & Wilton) A.& D. L?ve BRDI10 Bromus inermis ssp. pumpellianus var. pumpellianus Bromopsis inermis (Leyss.) Holub ssp. pumpelliana (Scribn.) W.A. Weber BRINP3 Bromus inermis ssp. pumpellianus var. pumpellianus Bromopsis pumpelliana (Scribn.) Holub BRPU9 Bromus inermis ssp. pumpellianus var. pumpellianus Bromus ciliatus L. var. coloradensis Vasey ex Beal BRCIC Bromus inermis ssp. pumpellianus var. pumpellianus Bromus inermis Leyss. var. purpurascens (Hook.) Wagnon BRINP6 Bromus inermis ssp. pumpellianus var. pumpellianus Bromus inermis Leyss. var. tweedyi (Scribn. ex Beal) C.L. Hitchc. BRINT2 Bromus inermis ssp. pumpellianus var. pumpellianus Bromus pumpellianus Scribn. BRPU3 Bromus inermis ssp. pumpellianus var. pumpellianus Bromus pumpellianus Scribn. ssp. dicksonii Mitchell & Wilton BRPUD Bromus inermis ssp. pumpellianus var. pumpellianus Bromus pumpellianus Scribn. var. tweedyi Scribn. ex Beal BRPUT Bromus inermis ssp. pumpellianus var. pumpellianus Bromus pumpellianus Scribn. var. villosissimus Hult BRPUV Bromus kalmii Bromopsis kalmii (Gray) Holub BRKA3 Bromus kalmii Bromus purgans auct. non L. [misapplied] BRPU10 Bromus lanatipes Bromopsis lanatipes (Shear) Holub BRLA10 Bromus lanatipes Bromus anomalus Rupr. ex Fourn. var. lanatipes (Shear) A.S. Hitchc. BRANL2 Bromus lanatipes Bromus porteri (Coult.) Nash var. lanatipes Shear BRPOL2 Bromus lanceolatus Bromus macrostachys Desf. BRMA2 Bromus lanceolatus var. lanuginosus Bromus macrostachys Desf. var. lanuginosus (Poir.) Coss. & Durieu BRMAL2 Bromus latiglumis Bromus altissimus Pursh BRAL5 Bromus latiglumis Bromus purgans auct. non L. [misapplied] BRPU10 Bromus marginatus Bromus breviaristatus Buckl. BRBR4 Bromus marginatus Bromus carinatus Hook. & Arn. var. linearis Shear BRCAL2 Bromus marginatus Bromus marginatus Nees ex Steud. var. breviaristatus (Buckl.) Beetle BRMAB Bromus marginatus Bromus marginatus Nees ex Steud. var. latior Shear BRMAL Bromus marginatus Bromus marginatus Nees ex Steud. var. seminudus Shear BRMAS Bromus marginatus Bromus sitchensis Trin. var. marginatus (Nees ex Steud.) Boivin BRSIM Bromus marginatus Ceratochloa marginata (Nees ex Steud.) B.D. Jackson CEMA10 Bromus maritimus Bromus carinatus Hook. & Arn. var. maritimus (Piper) C.L. Hitchc. BRCAM Bromus matritensis Anisantha madritensis (L.) Nevski [orthographic error] ANMA12 Bromus matritensis Anisantha matritensis (L.) Nevski ANMA27 Bromus matritensis Bromus madritensis L. ssp. madritensis L. [superfluous autonym] BRMAM3 Bromus matritensis Bromus madritensis L. [orthographic error] BRMA3 Bromus mucroglumis Bromopsis mucroglumis (Wagnon) Holub BRMU5 Bromus nottowayanus Bromopsis nottowayana (Fern.) Holub BRNO5 Bromus orcuttianus Bromopsis orcuttiana (Vasey) Holub BROR3 Bromus orcuttianus Bromus orcuttianus Vasey var. hallii A.S. Hitchc. BRORH Bromus pacificus Bromopsis pacifica (Shear) Holub BRPA9 Bromus pannonicus Bromus erectus Huds. var. vernalis Pancic BRERV Bromus pannonicus Bromus vernalis Pancic ex Hack. BRVE8 Bromus pectinatus Bromus adoensis Hochst. ex Steud. BRAD2 Bromus polyanthus var. paniculatus Bromus paniculatus (Shear) Rydb. BRPA8 Bromus polyanthus var. polyanthus Ceratochloa polyantha (Scribn. ex Shear) Tzvelev CEPO3 Bromus porteri Bromopsis porteri Coult. BRPO5 Bromus porteri Bromus anomalus auct. non Rupr. ex Fourn. [misapplied] BRAN13 Bromus pseudolaevipes Bromopsis pseudolaevipes (Wagnon) Holub BRPS2 Bromus pubescens Bromopsis pubescens (Muhl. ex Willd.) Holub BRPU11 Bromus pubescens Bromus ciliatus L. var. laeviglumis Scribn. ex Shear BRCIL2 Bromus pubescens Bromus pubescens Muhl. ex Willd. var. laeviglumis (Scribn. ex Shear) Swallen BRPUL3 Bromus pubescens Bromus purgans auct. non L. [misapplied] BRPU10 Bromus pubescens Bromus purgans L. var. laeviglumis (Scribn. ex Shear) Swallen BRPUL Bromus racemosus Bromus commutatus Schrad. BRCO4 Bromus racemosus Bromus commutatus Schrad. var. apricorum Simonkai BRCOA Bromus racemosus Bromus popovii Drobow BRPO7 Bromus ramosus Bromopsis ramosa (Huds.) Holub BRRA4 Bromus ramosus Bromus asper Murr. BRAS Bromus ramosus ssp. benekenii Bromus benekenii (Lange) Trimen BRBE5 Bromus rubens Anisantha rubens (L.) Nevski ANRU4 Bromus rubens Bromus madritensis L. ssp. rubens (L.) Husnot [orthographic error] BRMAR Bromus rubens Bromus matritensis L. ssp. rubens (L.) Duvin BRMAR2 Bromus secalinus var. secalinus Bromus secalinus L. var. hirsutus Kindb. BRSEH Bromus secalinus var. secalinus Bromus secalinus L. var. hirtus (F.W. Schultz) Hegi BRSEH2 Bromus setifolius var. brevifolius Bromus macranthos E. Desv. BRMA12 Bromus stamineus Bromus valdivianus Phil. BRVA3 Bromus stamineus Ceratochloa straminea (Desv.) Stace CEST6 Bromus sterilis Anisantha sterilis (L.) Nevski ANST4 Bromus subvelutinus Bromus luzonensis J. Presl BRLU3 Bromus suksdorfii Bromopsis suksdorfii (Vasey) Holub BRSU5 Bromus tectorum Anisantha tectorum (L.) Nevski ANTE6 Bromus tectorum Bromus tectorum L. var. glabratus Spenner BRTEG Bromus tectorum Bromus tectorum L. var. hirsutus Regel BRTEH Bromus tectorum Bromus tectorum L. var. nudus Klett & Richter BRTEN Bromus texensis Bromopsis texensis (Shear) Holub BRTE5 Bromus vulgaris Bromopsis vulgaris (Hook.) Holub BRVU2 Bromus vulgaris Bromus vulgaris (Hook.) Shear var. eximius Shear BRVUE Bromus vulgaris Bromus vulgaris (Hook.) Shear var. robustus Shear BRVUR brook crowngrass Paspalum acuminatum Raddi PAAC4 broom bamboo Phyllostachys nidularia Munro PHNI8 broom brome Bromus scoparius L. BRSC3 broomcorn millet Panicum miliaceum L. PAMI2 broomcorn millet Panicum miliaceum L. ssp. miliaceum PAMIM broomcorn millet Panicum miliaceum L. ssp. ruderale (Kitagawa) Tzvelev PAMIR broomsedge bluestem Andropogon virginicus L. ANVI2 broomsedge bluestem Andropogon virginicus L. var. decipiens C. Campbell ANVID broomsedge bluestem Andropogon virginicus L. var. virginicus ANVIV brown bentgrass Agrostis vinealis Schreb. AGVI9 brown bentgrass Agrostis vinealis Schreb. ssp. vinealis AGVIV3 brownbeard rice Oryza rufipogon Griffiths ORRU brownseed paspalum Paspalum plicatulum Michx. PAPL3 browntop Microstegium Nees MICRO7 browntop signalgrass Urochloa fuscata (Sw.) B.F. Hansen & Wunderlin URFU2 Brunswickgrass Paspalum nicorae Parodi PANI3 Buckley's dropseed Sporobolus buckleyi Vasey SPBU Buckley's fluffgrass Tridens buckleyanus (L.H. Dewey) Nash TRBU buffalograss Bouteloua dactyloides (Nutt.) J.T. Columbus BODA2 buffelgrass Pennisetum ciliare (L.) Link PECI bulb panicgrass Panicum bulbosum Kunth PABU bulbous barley Hordeum bulbosum L. HOBU bulbous bluegrass Poa bulbosa L. POBU bulbous canarygrass Phalaris aquatica L. PHAQ bull crowngrass Paspalum boscianum Fluegg PABO3 bullgrass Muhlenbergia emersleyi Vasey MUEM bumpy jointtail grass Coelorachis tuberculosa (Nash) Nash COTU bunch cutgrass Leersia monandra Sw. LEMO bunch kerosene grass Aristida contorta F. Muell. ARCO34 burr bristlegrass Setaria adhaerens (Forssk.) Chiov. SEAD burr grass Tragus Haller TRAGU burrograss Scleropogon brevifolius Phil. SCBR2 burrograss Scleropogon Phil. SCLER7 buryseed umbrellagrass Enteropogon chlorideus (J. Presl) W.D. Clayton ENCH bush muhly Muhlenbergia porteri Scribn. ex Beal MUPO2 bushy bluestem Andropogon glomeratus (Walt.) B.S.P. ANGL2 bushy bluestem Andropogon glomeratus (Walt.) B.S.P. var. glomeratus ANGLG2 bushy bluestem Andropogon glomeratus (Walt.) B.S.P. var. hirsutior (Hack.) C. Mohr ANGLH bushy bluestem Andropogon glomeratus (Walt.) B.S.P. var. pumilus Vasey ex L.H. Dewey ANGLP buttongrass Dactyloctenium radulans (R. Br.) Beauv. DARA2 Cain's reedgrass Calamagrostis cainii A.S. Hitchc. CACA2 Calamagrostis ?acutiflora Calamagrostis ?acutifolia (Schrad.) Rchb. [orthographic error] CAAC17 Calamagrostis avenoides Deyeuxia avenoides (Hook. f.) Buchanan DEAV Calamagrostis breweri Calamagrostis lemmonii Kearney CALE38 Calamagrostis canadensis var. canadensis Calamagrostis anomala Suksdorf CAAN20 Calamagrostis canadensis var. canadensis Calamagrostis atropurpurea Nash CAAT14 Calamagrostis canadensis var. canadensis Calamagrostis canadensis (Michx.) Beauv. var. imberbis (Stebbins) C.L. Hitchc. CACAI Calamagrostis canadensis var. canadensis Calamagrostis canadensis (Michx.) Beauv. var. pallida (Vasey & Scribn.) Stebbins CACAP4 Calamagrostis canadensis var. canadensis Calamagrostis canadensis (Michx.) Beauv. var. robusta Vasey CACAR Calamagrostis canadensis var. canadensis Calamagrostis canadensis (Michx.) Beauv. var. typica Stebbins CACAT Calamagrostis canadensis var. canadensis Calamagrostis expansa (Munro ex Hbd.) A.S. Hitchc. var. robusta (Vasey) Stebbins CAEXR Calamagrostis canadensis var. canadensis Calamagrostis hyperborea Lange CAHY12 Calamagrostis canadensis var. canadensis Calamagrostis inexpansa Gray var. cuprea Kearney CAINC Calamagrostis canadensis var. canadensis Calamagrostis inexpansa Gray var. robusta (Vasey) Stebbins CAINR Calamagrostis canadensis var. canadensis Calamagrostis scribneri Beal CASC2 Calamagrostis canadensis var. langsdorfii Calamagrostis ?lactea Beal (pro sp.) [not hybrid] CALA3 Calamagrostis canadensis var. langsdorfii Calamagrostis canadensis (Michx.) Beauv. ssp. langsdorfii (Link) Hult CACAL5 Calamagrostis canadensis var. langsdorfii Calamagrostis canadensis (Michx.) Beauv. var. lactea (Beal) C.L. Hitchc. CACAL2 Calamagrostis canadensis var. langsdorfii Calamagrostis canadensis (Michx.) Beauv. var. scabra (J. Presl) A.S. Hitchc. CACAS Calamagrostis canadensis var. langsdorfii Calamagrostis langsdorfii (Link) Trin. CALA43 Calamagrostis canadensis var. langsdorfii Calamagrostis nubila Louis-Marie CANU6 Calamagrostis canadensis var. macouniana Calamagrostis macouniana (Vasey) Vasey CAMA28 Calamagrostis coarctata Calamagrostis cinnoides W. Bart. nom. superfl. CACI Calamagrostis epigeios var. georgica Calamagrostis arenicola Fern. CAAR27 Calamagrostis epigeios var. georgica Calamagrostis epigeios (L.) Roth ssp. glomerata (Boiss. & Buhse) Tzvelev CAEPG Calamagrostis koelerioides Calamagrostis densa Vasey CADE2 Calamagrostis lapponica Calamagrostis lapponica (Wahlenb.) Hartman var. alpina Hartman CALAA2 Calamagrostis lapponica Calamagrostis lapponica (Wahlenb.) Hartman var. groenlandica Lange CALAG Calamagrostis lapponica Calamagrostis lapponica (Wahlenb.) Hartman var. nearctica Porsild CALAN2 Calamagrostis nutkaensis Deyeuxia nutkaensis J. Presl DENU8 Calamagrostis ophitidis Calamagrostis purpurascens R. Br. var. ophitidis J.T. Howell CAPUO2 Calamagrostis perplexa Calamagrostis porteri Gray ssp. perplexa (Scribn.) Clausen CAPOP2 Calamagrostis pickeringii Calamagrostis pickeringii Gray var. debilis (Kearney) Fern. & Wieg. CAPID Calamagrostis porteri ssp. insperata Calamagrostis insperata Swallen CAIN16 Calamagrostis purpurascens var. purpurascens Calamagrostis lepageana Louis-Marie CALE21 Calamagrostis purpurascens var. purpurascens Calamagrostis maltei (Polunin) A.& D. L?ve CAMA27 Calamagrostis purpurascens var. purpurascens Calamagrostis purpurascens R. Br. ssp. maltei (Polunin) Porsild CAPUM Calamagrostis purpurascens var. purpurascens Calamagrostis purpurascens R. Br. var. maltei Polunin CAPUM2 Calamagrostis purpurascens var. purpurascens Calamagrostis yukonensis Nash CAYU2 Calamagrostis purpurascens var. purpurascens Deschampsia congestiformis Booth DECO Calamagrostis rubescens Calamagrostis fasciculata Kearney CAFA5 Calamagrostis scopulorum Calamagrostis scopulorum M.E. Jones var. bakeri Stebbins CASCB4 Calamagrostis sesquiflora Calamagrostis arctica Vasey CAAR30 Calamagrostis sesquiflora Calamagrostis purpurascens R. Br. ssp. arctica (Vasey) Hult CAPUA2 Calamagrostis sesquiflora Calamagrostis purpurascens R. Br. ssp. tasuensis Calder & Taylor CAPUT2 Calamagrostis sesquiflora Calamagrostis purpurascens R. Br. var. arctica (Vasey) Kearney CAPUA5 Calamagrostis sesquiflora Calamagrostis purpurascens R. Br. var. tasuensis (Calder & Taylor) Boivin CAPUT3 Calamagrostis sesquiflora Calamagrostis vaseyi Beal CAVA7 Calamagrostis stricta ssp. inexpansa Calamagrostis californica Kearney CACA3 Calamagrostis stricta ssp. inexpansa Calamagrostis canadensis (Michx.) Beauv. var. acuminata Vasey ex Shear & Rydb. CACAA8 Calamagrostis stricta ssp. inexpansa Calamagrostis canadensis (Michx.) Beauv. var. arcta Stebbins CACAA3 Calamagrostis stricta ssp. inexpansa Calamagrostis chordorrhiza Porsild CACH18 Calamagrostis stricta ssp. inexpansa Calamagrostis crassiglumis Thurb. CACR Calamagrostis stricta ssp. inexpansa Calamagrostis expansa Rickett & Gilly, non (Munro ex Hbd.) A.S. Hitchc. CAEX11 Calamagrostis stricta ssp. inexpansa Calamagrostis fernaldii Louis-Marie CAFE Calamagrostis stricta ssp. inexpansa Calamagrostis hyperborea Lange var. americana (Vasey) Kearney CAHYA Calamagrostis stricta ssp. inexpansa Calamagrostis hyperborea Lange var. elongata Kearney CAHYE Calamagrostis stricta ssp. inexpansa Calamagrostis hyperborea Lange var. stenodes Kearney CAHYS Calamagrostis stricta ssp. inexpansa Calamagrostis inexpansa Gray CAIN Calamagrostis stricta ssp. inexpansa Calamagrostis inexpansa Gray var. barbulata Kearney CAINB Calamagrostis stricta ssp. inexpansa Calamagrostis inexpansa Gray var. brevior (Vasey) Stebbins CAINB2 Calamagrostis stricta ssp. inexpansa Calamagrostis inexpansa Gray var. novae-angliae Stebbins CAINN Calamagrostis stricta ssp. inexpansa Calamagrostis labradorica Kearney CALA29 Calamagrostis stricta ssp. inexpansa Calamagrostis lacustris (Kearney) Nash CALA47 Calamagrostis stricta ssp. inexpansa Calamagrostis lapponica (Wahlenb.) Hartman var. brevipilis Stebbins CALAB3 Calamagrostis stricta ssp. inexpansa Calamagrostis pickeringii Gray var. lacustris (Kearney) A.S. Hitchc. CAPIL2 Calamagrostis stricta ssp. inexpansa Calamagrostis robertii Porsild CARO27 Calamagrostis stricta ssp. inexpansa Calamagrostis stricta (Timm) Koel. var. brevior Vasey CASTB3 Calamagrostis stricta ssp. inexpansa Calamagrostis stricta (Timm) Koel. var. lacustris (Kearney) C.W. Greene CASTL3 Calamagrostis stricta ssp. stricta var. borealis Calamagrostis borealis Laestad. CABO20 Calamagrostis stricta ssp. stricta var. borealis Calamagrostis neglecta (Ehrh.) P.G. Gaertn., B. Mey. & Scherb. ssp. borealis (Laestad.) Seland. CANEB3 Calamagrostis stricta ssp. stricta var. borealis Calamagrostis neglecta (Ehrh.) P.G. Gaertn., B. Mey. & Scherb. var. borealis (Laestad.) Kearney CANEB4 Calamagrostis stricta ssp. stricta var. stricta Calamagrostis neglecta (Ehrh.) P.G. Gaertn., B. Mey. & Scherb. CANE Calamagrostis stricta ssp. stricta var. stricta Calamagrostis neglecta (Ehrh.) P.G. Gaertn., B. Mey. & Scherb. ssp. stricta (Timm) Tzvelev CANES Calamagrostis stricta ssp. stricta var. stricta Calamagrostis neglecta (Ehrh.) P.G. Gaertn., B. Mey. & Scherb. var. gracilis (Scribn.) Scribn. CANEG2 Calamagrostis stricta ssp. stricta var. stricta Calamagrostis neglecta (Ehrh.) P.G. Gaertn., B. Mey. & Scherb. var. micrantha (Kearney) Stebbins CANEM Calamagrostis viridiflavescens var. montevidensis Calamagrostis montevidensis Nees CAMO29 calammophila ?Calammophila Brand CALAM6 Calamovilfa brevipilis Calamovilfa brevipilis (Torr.) Scribn. var. calvipes Fern. CABRC Calamovilfa brevipilis Calamovilfa brevipilis (Torr.) Scribn. var. heterolepis Fern. CABRH Calamovilfa gigantea Calamagrostis gigantea Nutt. CAGI2 California alkaligrass Puccinellia simplex Scribn. PUSI California barley Hordeum brachyantherum Nevski ssp. californicum (Covas & Stebbins) Bothmer, N.Jacobsen & Seberg HOBRC2 California bentgrass Agrostis densiflora Vasey AGDE7 California bottlebrush grass Elymus californicus (Boland. ex Thurb.) Gould ELCA10 California brome Bromus carinatus Hook. & Arn. BRCA5 California canarygrass Phalaris californica Hook. & Arn. PHCA4 California cordgrass Spartina foliosa Trin. SPFO California fescue Festuca californica Vasey FECA California melicgrass Melica californica Scribn. MECA2 California melicgrass Melica californica Scribn. var. californica MECAC California melicgrass Melica californica Scribn. var. nevadensis Boyle MECAN California muhly Muhlenbergia californica Vasey MUCA California needlegrass Achnatherum occidentale (Thurb.) Barkworth ssp. californicum (Merr. & Burtt-Davey) Barkworth ACOCC California oatgrass Danthonia californica Boland. DACA3 California Orcutt grass Orcuttia californica Vasey ORCA California satintail Imperata brevifolia Vasey IMBR2 California sweetgrass Hierochloe occidentalis Buckl. HIOC California threeawn Aristida californica Thurb. ex S. Wats. ARCA9 California threeawn Aristida californica Thurb. ex S. Wats. var. californica ARCAC8 camel grass Cymbopogon schoenanthus (L.) Spreng. [excluded] CYSC8 Canada bluegrass Poa compressa L. POCO Canada wildrye Elymus canadensis L. ELCA4 Canadian ricegrass Piptatherum canadense (Poir) Dorn PICA17 Canadian wildrye ?Elyleymus hirtiflorus (A.S. Hitchc.) Barkworth [Elymus trachycaulus ? Leymus innovatus] ELHI4 canarygrass Phalaris L. PHALA2 cane Arundinaria Michx. ARUND2 cane bluestem Bothriochloa barbinodis (Lag.) Herter BOBA3 canyon cupgrass Eriochloa lemmonii Vasey & Scribn. ERLE7 Cape Francais stalkgrass Pharus lappulaceus Aubl. PHLA21 Cape ricegrass Achnatherum capense (Thunb.) Beauv. ACCA34 Capetown grass Tribolium obliterum (Hemsl.) Renvoize TROB6 Caribbean bristlegrass Setaria utowanaea (Scribn. ex Millsp.) Pilger SEUT2 Caribbean crabgrass Digitaria dolichophylla Henr. DIDO Caribbean fingergrass Eustachys paspaloides (Vahl) Lanza & Mattei EUPA27 Caribbean fingergrass Eustachys paspaloides (Vahl) Lanza & Mattei ssp. caribaea (Spreng.) Nowack EUPAC Caribgrass Eriochloa polystachya Kunth ERPO3 Carolina canarygrass Phalaris caroliniana Walt. PHCA6 Carolina crabgrass Digitaria pubiflora (Vasey) J. Wipff DIPU9 Carolina dropseed Sporobolus pinetorum A. Weakley & P.M. Peterson SPPI3 Carolina fluffgrass Tridens carolinianus (Steud.) Henr. TRCA4 Carolina foxtail Alopecurus carolinianus Walt. ALCA4 Carolina oatgrass Danthonia epilis Scribn. DAEP2 carpet grass Axonopus suffultus (J. C. Mikan ex Trin.) Parodi AXSU2 carpetgrass Axonopus Beauv. AXONO carpetgrass Axonopus scoparius (Fluegge) Hitchc. AXSC carpgrass Arthraxon Beauv. ARTHR carrycillo Olyra L. OLYRA carrycillo Olyra latifolia L. OLLA caruzo Ichnanthus pallens (Sw.) Munro ex Benth. ICPA caruzo Ichnanthus pallens (Sw.) Munro ex Benth. var. majus (Nees) Stieber ICPAM caruzo Ichnanthus pallens (Sw.) Munro ex Benth. var. pallens ICPAP Castellia tuberculosa Catapodium tuberculosum Moris CATU13 castrate carpgrass Arthraxon castratus (Griffiths) Naray. ex Bor ARCA34 Catabrosa aquatica var. aquatica Aira aquatica L. AIAQ Catabrosa aquatica var. aquatica Catabrosa aquatica (L.) Beauv. var. uniflora S.F. Gray CAAQU Catalina grass Dissanthelium californicum (Nutt.) Benth. DICA5 Catalina grass Dissanthelium Trin. DISSA Catapodium rigidum Desmazeria rigida (L.) Tutin DERI5 Catapodium rigidum Poa rigida L. PORI5 Catapodium rigidum Scleropoa rigida (L.) Griseb. SCRI3 catchfly grass Leersia lenticularis Michx. LELE2 cattail grass Setaria pumila (Poir.) Roemer & J.A. Schultes ssp. pallidefusca (Schumacher) B.K. Simon SEPUP3 Caucasian bluestem Bothriochloa bladhii (Retz.) S.T. Blake BOBL cedar rosette grass Dichanthelium pedicellatum (Vasey) Gould DIPE4 Celtica gigantea Stipa gigantea Link STGI2 Cenchrus agrimonioides var. laysanensis Cenchrus pedunculatus O. Deg. & Whitney CEPE3 Cenchrus biflorus Cenchrus barbatus Schumacher CEBA2 Cenchrus biflorus Cenchrus catharticus Delile CECA13 Cenchrus brownii Cenchrus viridis Spreng. CEVI7 Cenchrus echinatus Cenchrus echinatus L. var. hillebrandianus (A.S. Hitchc.) F. Br. CEECH Cenchrus longispinus Cenchrus carolinianus Walt. CECA6 Cenchrus myosuroides Cenchropsis myosuroides (Kunth) Nash CEMY2 Cenchrus setiger Cenchrus setigerus Vahl [orthographic error] CESE2 Cenchrus setiger Pennisetum ciliare (L.) Link var. setigerum (Vahl) Leeke [orthographic error] PECIS2 Cenchrus setiger Pennisetum ciliare L. var. setiger (Vahl) Leeke PECIS3 Cenchrus spinifex Cenchrus incertus M.A. Curtis CEIN4 Cenchrus spinifex Cenchrus parviceps Shinners CEPA11 Cenchrus spinifex Cenchrus pauciflorus Benth. CEPA12 centipede grass Eremochloa B?se EREMO2 centipede grass Eremochloa ophiuroides (Munro) Hack. EROP Central America grass Ixophorus Schlecht. IXOPH Centropodia glauca Danthonia glauca Nees DAGL6 cereal rye Secale cereale L. SECE chalky bluestem Andropogon capillipes Nash ANCA4 Chambers's bluegrass Poa chambersii Soreng POCH10 Champlain beachgrass Ammophila champlainensis Seymour AMCH6 channel millet Echinochloa turneriana (Domin) J. M. Black ECTU Chapman's bluegrass Poa chapmaniana Scribn. POCH2 Chapman's bristlegrass Paspalidium chapmanii (Vasey) Pohl PACH16 Chapman's skeletongrass Gymnopogon chapmanianus A.S. Hitchc. GYCH Chapman's tridens Tridens flavus (L.) A.S. Hitchc. var. chapmanii (Small) Shinners TRFLC Chase's threeawn Aristida chaseae A.S. Hitchc. ARCH4 Chasmanthium latifolium Uniola latifolia Michx. UNLA3 Chasmanthium laxum Uniola laxa (L.) B.S.P. UNLA4 Chasmanthium nitidum Uniola nitida Baldw. UNNI2 Chasmanthium ornithorhynchum Uniola ornithorhyncha Steud. UNOR2 Chasmanthium sessiliflorum Chasmanthium laxum (L.) Yates ssp. sessiliflorum (Poir.) L. Clark CHLAS2 Chasmanthium sessiliflorum Chasmanthium laxum (L.) Yates var. sessiliflorum (Poir.) J. Wipff & S.D. Jones CHLAS Chasmanthium sessiliflorum Uniola longifolia Scribn. UNLO Chasmanthium sessiliflorum Uniola sessiliflora Poir. UNSE2 cheatgrass Bromus tectorum L. BRTE checkered jointtail grass Coelorachis tessellata (Steud.) Nash COTE5 chee reedgrass Calamagrostis epigeios (L.) Roth CAEP chee reedgrass Calamagrostis epigeios (L.) Roth var. epigeios CAEPE chee reedgrass Calamagrostis epigeios (L.) Roth var. georgica (K. Koch) Ledeb. CAEPG2 Chesapeake panicgrass Panicum paludosum Roxb. PAPA35 Chewing's fescue Festuca rubra L. ssp. fallax (Thuill.) Nyman FERUF3 Chihuahuan cockspur Echinochloa oplismenoides (Fourn.) A.S. Hitchc. ECOP Chihuahuan lovegrass Eragrostis erosa Scribn. ERER Chilean chess Bromus berteroanus Colla BRBE6 Chilean needlegrass Nassella chilensis (Trin.) Desv. NACH Chilean rabbitsfoot grass Polypogon australis Brongn. POAU3 Chilean ricegrass Achnatherum caudatum (Trin.) S.L.W. Jacobs & J. Everett ACCA31 Chinese fountaingrass Pennisetum alopecuroides (L.) Spreng. PEAL Chinese lovegrass Eragrostis unioloides (Retz.) Nees ex Steud. ERUN Chinese silvergrass Miscanthus sinensis Anderss. MISI Chinese sprangletop Leptochloa chinensis (L.) Nees [excluded] LECH2 Chino grama Bouteloua ramosa Scribn. ex Vasey BORA4 Chinook brome Bromus laevipes Shear BRLA3 Chloris ?subdolichostachya Chloris latisquamea Nash CHLA3 Chloris barbata Chloris inflata Link CHIN4 Chloris barbata Chloris paraguaiensis Steud. CHPA20 Chloris divaricata Chloris cynodontioides Balansa CHCY2 Chloris divaricata Chloris divaricata R. Br. var. cynodontioides (Balansa) Lazarides CHDIC Chloris elata Chloris barbata (L.) Nash, non Sw. CHBA8 Chloris elata Chloris dandyana C.D. Adams CHDA Chloris elata Chloris polydactyla Sw. CHPO10 Chloris mossambicensis Tetrapogon mossambicensis (K. Schum.) Chippind. ex B. S. Fisher TEMO4 Chloris radiata Agrostis radiata L. AGRA2 Chloris roxburghiana Chloris myriostachya Hochst. CHMY2 Christmas grass Themeda arguens (L.) Hack. THAR2 Chrysopogon nodulibarbis Chrysopogon zeylanicus (Nees ex Steud.) Thwaites CHZE2 Chrysopogon pauciflorus Rhaphis pauciflora (Chapman) Nash RHPA5 churchmouse threeawn Aristida dichotoma Michx. ARDI4 churchmouse threeawn Aristida dichotoma Michx. var. dichotoma ARDID chusquea bamboo Chusquea Kunth CHUSQ Cinna arundinacea Cinna arundinacea L. var. inexpansa Fern. & Grisc. CIARI circular paspalum Paspalum orbiculatum Poir. PAOR4 circumpolar reedgrass Calamagrostis deschampsioides Trin. CADE3 citronella grass Cymbopogon nardus (L.) Rendle CYNA Cladoraphis cyperoides Eragrostis cyperoides (Thunb.) Beauv. ERCY Cladoraphis cyperoides Poa cyperoides Thunb. POCY4 clavate bentgrass Agrostis clavata Trin. AGCL cliff muhly Muhlenbergia polycaulis Scribn. MUPO climbing bamboo Arthrostylidium Rupr. ARTHR2 climbing bamboo Chusquea abietifolia Griseb. CHAB climbing tribisee Lasiacis ruscifolia (Kunth) A.S. Hitchc. & Chase LARU clovenfoot plumegrass Dichelachne crinita (L. f.) Hook. f. DICR7 clubawn grass Corynephorus Beauv. CORYN clustered fescue Festuca paradoxa Desv. FEPA2 coast agropogon ?Agropogon littoralis (Sm.) C.E. Hubbard [Agrostis stolonifera ? Polypogon monospeliensis] AGLI coast cockspur grass Echinochloa walteri (Pursh) Heller ECWA coast fescue Festuca elmeri Scribn. & Merr. FEEL2 coast range brome Bromus pseudolaevipes Wagnon BRPS coastal bluff bentgrass Agrostis clivicola Crampton AGCL2 coastal bluff bentgrass Agrostis clivicola Crampton var. clivicola AGCLC coastal bristlegrass Setaria corrugata (Ell.) J.A. Schultes SECO4 coastal lovegrass Eragrostis refracta (Muhl.) Scribn. ERRE coastal plain panicgrass Dichanthelium longiligulatum (Nash) Freckmann DILO4 coastal sand paspalum Paspalum maritimum Trin. PAMA16 coastal sandbur Cenchrus spinifex Cav. CESP4 coastline bluegrass Poa confinis Vasey POCO2 cockspur Echinochloa haploclada Stapf in Prain ECHA3 cockspur Echinochloa spiralis Vasinger in Komarov ECSP3 cockspur grass Echinochloa Beauv. ECHIN4 coconut paspalum Paspalum laxum Lam. PALA12 Coelorachis cylindrica Manisuris campestris (Nutt.) A.S. Hitchc. MACA16 Coelorachis cylindrica Manisuris cylindrica (Michx.) Kuntze MACY6 Coelorachis cylindrica Mnesithea cylindrica (Michx.) Koning & Sosef MNCY Coelorachis rugosa Manisuris rugosa (Nutt.) Kuntze MARU5 Coelorachis rugosa Mnesithea rugosa (Nutt.) Koning & Sosef MNRU2 Coelorachis tessellata Manisuris tessellata (Steud.) Scribn. MATE14 Coelorachis tessellata Mnesithea tessellata (Steud.) Koning & Sosef MNTE Coelorachis tuberculosa Manisuris tuberculosa Nash MATU2 Coelorachis tuberculosa Mnesithea tuberculosa (Nash) Koning & Sosef MNTU cogongrass Imperata cylindrica (L.) Beauv. IMCY Colombian bluestem Schizachyrium condensatum (Kunth) Nees SCCO10 colonial bentgrass Agrostis capillaris L. AGCA5 Colorado fescue Festuca brachyphylla J.A. Schultes ex J.A. & J.H. Schultes ssp. coloradensis Frederiksen FEBRC Colorado wildrye Leymus ambiguus (Vasey & Scribn.) D.R. Dewey LEAM Columbia brome Bromus vulgaris (Hook.) Shear BRVU Columbia needlegrass Achnatherum nelsonii (Scribn.) Barkworth ACNE9 Columbia needlegrass Achnatherum nelsonii (Scribn.) Barkworth ssp. nelsonii ACNEN2 Columbus grass Sorghum almum Parodi SOAL Colusagrass Neostapfia Burtt-Davy NEOST Colusagrass Neostapfia colusana (Burtt-Davy) Burtt-Davy NECO2 Colville wildrye ?Elyleymus colvillensis (Lepage) Barkworth [Elymus alaskanus ? Leymus innovatus] ELCO8 comb windmill grass Chloris pectinata Benth. CHPE80 Comb's crowngrass Paspalum almum Chase PAAL7 Combs's panicgrass Panicum rigidulum Bosc ex Nees var. combsii (Scribn. & Ball) Lelong PARIC combtop muhly Muhlenbergia pectinata C.O. Goodding MUPE comet grass Perotis rara R. Br. PERA10 common bamboo Bambusa vulgaris Schrad. ex J.C. Wendl. BAVU2 common barley Hordeum vulgare L. HOVU common carpetgrass Axonopus fissifolius (Raddi) Kuhlm. AXFI common cordgrass Spartina anglica C.E. Hubbard SPAN5 common hardgrass Sclerochloa dura (L.) Beauv. SCDU2 common heathgrass Danthonia decumbens (L.) DC. DADE common Mediterranean grass Schismus barbatus (Loefl. ex L.) Thellung SCBA common oat Avena sativa L. AVSA common reed Phragmites australis (Cav.) Trin. ex Steud. PHAU7 common rivergrass Scolochloa festucacea (Willd.) Link SCFE common russet grass Loudetia simplex (Nees) C. E. Hubb. LOSI5 common velvetgrass Holcus lanatus L. HOLA common wheat Triticum aestivum L. TRAE common wild sorghum Sorghum bicolor (L.) Moench ssp. arundinaceum (Desv.) de Wet & Harlan SOBIA common wolfstail Lycurus phleoides Kunth LYPH compact brome Bromus matritensis L. BRMA16 composite dropseed Sporobolus compositus (Poir.) Merr. SPCO16 composite dropseed Sporobolus compositus (Poir.) Merr. var. compositus SPCOC2 composite dropseed Sporobolus compositus (Poir.) Merr. var. macer (Trin.) Kartesz & Gandhi SPCOM compressed plumegrass Saccharum coarctatum (Fern.) R. Webster SACO31 conejito Paspalum prostratum Scribn. & Merr. PAPR25 confusing fescue Vulpia microstachys (Nutt.) Munro var. confusa (Piper) Lonard & Gould VUMIC2 contracted ricegrass Achnatherum contractum (B.L. Johnson) Barkworth ACCO22 coral bristlegrass Setaria macrosperma (Scribn. & Merr.) K. Schum. SEMA4 coral dropseed Sporobolus domingensis (Trin.) Kunth SPDO2 cordgrass Spartina Schreb. SPART corkscrew threeawn Aristida gyrans Chapman ARGY corn Zea L. ZEA corn Zea mays L. ZEMA corn Zea mays L. ssp. mays ZEMAM2 corn Zea mays L. ssp. parviglumis Iltis & Doebley ZEMAP corn brome Bromus squarrosus L. BRSQ2 Cortaderia jubata Cortaderia atacamensis (Phil.) Pilger COAT2 Cortaderia selloana Cortaderia dioica (Spreng.) Speg. CODI11 Corynephorus canescens Aira canescens L. AICA4 cotta grass Cottea Kunth COTTE cotta grass Cottea pappophoroides Kunth COPA13 crabgrass Digitaria ?umfolozi D.W. Hall in Turrialba DIUM2 crabgrass Digitaria cruciata (Nees ex Steudel) A. Camus DICR3 crabgrass Digitaria didactyla Willd. [excluded] DIDI16 crabgrass Digitaria Haller DIGIT2 crabgrass Digitaria seriata Stapf [excluded] DISE16 crabgrass Digitaria setivalva Stent DISE17 creeping alkaligrass Puccinellia phryganodes (Trin.) Scribn. & Merr. PUPH creeping alkaligrass Puccinellia phryganodes (Trin.) Scribn. & Merr. ssp. phryganodes PUPHP creeping bedgrass Ichnanthus nemorosus (Sw.) Doell ICNE creeping bentgrass Agrostis stolonifera L. AGST2 creeping bluestem Schizachyrium scoparium (Michx.) Nash var. stoloniferum (Nash) J. Wipff SCSCS3 creeping lovegrass Neeragrostis Bush NEERA2 creeping lovegrass Neeragrostis reptans (Michx.) Nicora NERE3 creeping mannagrass Glyceria acutiflora Torr. GLAC creeping meadow foxtail Alopecurus arundinaceus Poir. ALAR creeping muhly Muhlenbergia repens (J. Presl) A.S. Hitchc. MURE creeping river grass Echinochloa polystachya (Kunth) A.S. Hitchc. ECPO3 creeping stalkgrass Pharus parvifolius Nash PHPA6 creeping velvetgrass Holcus mollis L. HOMO crested dogstail grass Cynosurus cristatus L. CYCR crested wheatgrass Agropyron cristatum (L.) Gaertn. AGCR crested wheatgrass Agropyron cristatum (L.) Gaertn. ssp. cristatum (L.) Gaertn. [excluded] AGCRC crested wheatgrass Agropyron cristatum (L.) Gaertn. ssp. pectinatum (Bieb.) Tzvelev AGCRP8 Cretan meadow foxtail Alopecurus creticus Trin. ALCR7 crimson bluestem Schizachyrium sanguineum (Retz.) Alston SCSA crimson bluestem Schizachyrium sanguineum (Retz.) Alston var. hirtiflorum (Nees) Hatch SCSAH crimson bluestem Schizachyrium sanguineum (Retz.) Alston var. sanguineum SCSAS crimson fountaingrass Pennisetum setaceum (Forssk.) Chiov. PESE3 crinkleawn fescue Festuca subuliflora Scribn. FESU2 crinkleawn grass Trachypogon Nees TRACH2 crowfoot grass Dactyloctenium Willd. DACTY2 crowngrass Paspalum L. PASPA2 Crypsis alopecuroides Heleochloa alopecuroides (Piller & Mitterp.) Host ex Roemer HEAL10 Crypsis schoenoides Heleochloa schoenoides (L.) Host ex Roemer HESC8 Crypsis vaginiflora Crypsis aculeata auct. non (L.) Ait. [misapplied] CRAC4 Crypsis vaginiflora Crypsis niliacea auct. non Fig. & de Not. [misapplied] CRNI3 Ctenium aromaticum Campulosus aromaticus (Walt.) Scribn. CAAR31 Ctenium floridanum Campulosus floridanus A.S. Hitchc. CAFL24 Cuban dropseed Sporobolus cubensis A.S. Hitchc. SPCU2 Cuban windmill grass Chloris cubensis A.S. Hitchc. & Ekman ex A.S. Hitchc. CHCU6 Cumberland sandreed Calamovilfa arcuata K.E. Rogers CAAR12 Cuming's lovegrass Eragrostis cumingii Steud. ERCU5 cup grass Eriochloa crebra S. T. Blake ERCR12 cupgrass Eriochloa Kunth ERIOC2 cupscale grass Sacciolepis Nash SACCI curly Mitchell grass Astrebla lappacea (Lindl.) Domin [excluded] ASLA22 curly threeawn Aristida desmantha Trin. & Rupr. ARDE3 curly-mesquite Hilaria belangeri (Steud.) Nash HIBE curly-mesquite Hilaria belangeri (Steud.) Nash var. belangeri HIBEB curly-mesquite Hilaria Kunth HILAR curlyleaf Eragrostis rigidior Pilg. ERRI3 curlyleaf muhly Muhlenbergia setifolia Vasey MUSE Curtis's dropseed Sporobolus curtissii (Vasey ex Beal) Small ex Scribn. SPCU Curtis's threeawn Aristida dichotoma Michx. var. curtissii Gray ex S. Wats. & Coult. ARDIC curved sicklegrass Parapholis incurva (L.) C.E. Hubbard PAIN Cusick's bluegrass Poa cusickii Vasey POCU3 Cusick's bluegrass Poa cusickii Vasey ssp. cusickii POCUC4 Cusick's bluegrass Poa cusickii Vasey ssp. epilis (Scribn.) W.A. Weber POCUE2 Cusick's bluegrass Poa cusickii Vasey ssp. pallida Soreng POCUP3 Cusick's bluegrass Poa cusickii Vasey ssp. purpurascens (Vasey) Soreng POCUP4 cutgrass Leersia Sw. LEERS cutgrass Zizaniopsis Doell & Aschers. ZIZAN2 cutover muhly Muhlenbergia expansa (Poir.) Trin. MUEX cutthroat grass Panicum abscissum Swallen PAAB cylinder jointtail grass Coelorachis cylindrica (Michx.) Nash COCY cylinderflower lovegrass Eragrostis cylindriflora Hochst. ERCY4 Cymbopogon citratus Andropogon citratus DC. ex Nees ANCI4 Cymbopogon flexuosus Andropogon flexuosus Nees ex Steudel ANFL7 cymbopogon grass Cymbopogon winterianus Jowitt CYWI6 Cymbopogon martinii Andropogon martinii Roxb. ANMA17 Cymbopogon nardus Andropogon nardus L. ANNA4 cynodon Cynodon bradleyi Stent CYBR14 Cynodon dactylon Capriola dactylon (L.) Kuntze CADA5 Cynodon dactylon Cynodon aristiglumis Caro & S?nchez CYAR16 Cynodon dactylon Cynodon incompletus auct. non Nees [misapplied] CYIN14 Cynodon dactylon Panicum dactylon L. PADA cypress panicgrass Dichanthelium dichotomum (L.) Gould DIDI6 cypress panicgrass Dichanthelium dichotomum (L.) Gould var. breve (A.S. Hitchc. & Chase) Gould & C.A. Clark DIDIB cypress panicgrass Dichanthelium dichotomum (L.) Gould var. dichotomum DIDID cypress panicgrass Dichanthelium dichotomum (L.) Gould var. ensifolium (Baldw. ex Ell.) Gould & C.A. Clark DIDIE cypress panicgrass Dichanthelium dichotomum (L.) Gould var. glabrifolium (Nash) Gould & C.A. Clark DIDIG cypress panicgrass Dichanthelium dichotomum (L.) Gould var. tenue (Muhl.) Gould & C.A. Clark DIDIT Dactylis glomerata ssp. aschersoniana Dactylis aschersoniana Graebn. DAAS Dactylis glomerata ssp. aschersoniana Dactylis polygama Horv?tovszky DAPO5 Dactylis glomerata ssp. glomerata Dactylis glomerata L. var. ciliata Peterm. DAGLC Dactylis glomerata ssp. glomerata Dactylis glomerata L. var. detonsa Fries DAGLD Dactylis glomerata ssp. glomerata Dactylis glomerata L. var. vivipara Parl. DAGLV Dactylis glomerata ssp. lobata Dactylis glomerata L. ssp. polygama (Horv.) Domin DAGLP3 Dactyloctenium aegyptium Cynosurus aegyptius L. CYAE3 Dactyloctenium radulans Eleusine radulans R. Br. ELRA6 Dahurian wild rye Elymus dahuricus Turcz. ex Griseb. ELDA3 Dakota barley ?Elyhordeum dakotense (Bowden) Bowden [Elymus canadensis ? Hordeum jubatum] ELDA dallisgrass Paspalum dilatatum Poir. PADI3 Danthonia alpina Danthonia provincialis DC., nom. illeg. [anomalous] DAPR3 Danthonia californica Danthonia americana Scribn. DAAM5 Danthonia californica Danthonia californica Bol. var. californica Bol. [superfluous autonym] DACAC7 Danthonia californica Danthonia californica Boland. var. americana (Scribn.) A.S. Hitchc. DACAA Danthonia californica Danthonia californica Boland. var. palousensis St. John DACAP3 Danthonia californica Danthonia californica Boland. var. piperi St. John DACAP4 Danthonia compressa Danthonia allenii Austin DAAL3 Danthonia decumbens Festuca decumbens L. FEDE3 Danthonia decumbens Sieglingia decumbens (L.) Bernh. SIDE2 Danthonia epilis Danthonia sericea Nutt. var. epilis (Scribn.) Blomquist DASEE Danthonia intermedia Danthonia canadensis Baum & Findlay DACA11 Danthonia intermedia Danthonia intermedia Vasey var. cusickii Williams DAINC Danthonia spicata Danthonia spicata (L.) Beauv. ex Roemer & J.A. Schultes var. longipila Scribn. & Merr. DASPL Danthonia spicata Danthonia spicata (L.) Beauv. ex Roemer & J.A. Schultes var. pinetorum Piper DASPP Danthonia spicata Danthonia thermalis Scribn. DATH3 darnel lovegrass Eragrostis airoides Nees ERAI3 Darnel ryegrass Lolium temulentum L. LOTE2 Darnel ryegrass Lolium temulentum L. ssp. temulentum LOTET Dasyochloa pulchella Erioneuron pulchellum (Kunth) Tateoka ERPU8 Dasyochloa pulchella Tridens pulchellus (Kunth) A.S. Hitchc. TRPU10 Dasyochloa pulchella Triodia pulchella Kunth TRPU9 Dasypyrum villosum Agropyron villosum (L.) Link AGVI10 Dasypyrum villosum Haynaldia villosa (L.) Schur HAVI5 davy mannagrass Glyceria leptostachya Buckl. GLLE2 decumbent crowngrass Paspalum decumbens Sw. PADE7 deergrass Muhlenbergia rigens (Benth.) A.S. Hitchc. MURI2 deertongue Dichanthelium clandestinum (L.) Gould DICL deflexed brachiaria Urochloa deflexa (Schumacher) H. Scholz URDE2 delicate bluegrass Poa tenerrima Scribn. POTE5 delicate muhly Muhlenbergia fragilis Swallen MUFR dense crowngrass Paspalum densum Poir. PADE6 dense silkybent Apera interrupta (L.) Beauv. APIN denseflower cordgrass Spartina densiflora Brongn. SPDE2 Deschampsia beringensis Deschampsia caespitosa (L.) Beauv. ssp. beringensis (Hult?n) W.E. Lawrence DECAB Deschampsia beringensis Deschampsia cespitosa (L.) Beauv. ssp. beringensis (Hult?n) W.E. Lawrence [orthographic variant] DECEB Deschampsia brevifolia Deschampsia caespitosa (L.) Beauv. ssp. brevifolia (R. Br.) Tzvelev DECAB2 Deschampsia brevifolia Deschampsia cespitosa (L.) Beauv. ssp. brevifolia (R. Br.) Tzvelev [orthographic variant] DECEB3 Deschampsia caespitosa Aira caespitosa L. AICA6 Deschampsia caespitosa Aira cespitosa L. [orthographic variant] AICE Deschampsia caespitosa Deschampsia caespitosa (L.) Beauv. ssp. genuina (Reichenb.) Volk. DECAG3 Deschampsia caespitosa Deschampsia caespitosa (L.) Beauv. ssp. glauca (Hartman) Hartman DECAG Deschampsia caespitosa Deschampsia caespitosa (L.) Beauv. ssp. orientalis Hult DECAO Deschampsia caespitosa Deschampsia caespitosa (L.) Beauv. ssp. paramushirensis (Honda) Tzvelev DECAP5 Deschampsia caespitosa Deschampsia caespitosa (L.) Beauv. ssp. parviflora (Thuill.) Dumort. DECAP3 Deschampsia caespitosa Deschampsia caespitosa (L.) Beauv. var. abbei Boivin DECAA4 Deschampsia caespitosa Deschampsia caespitosa (L.) Beauv. var. alpicola (Rydb.) A.& D. L?ve & Kapoor DECAA3 Deschampsia caespitosa Deschampsia caespitosa (L.) Beauv. var. arctica Vasey DECAA2 Deschampsia caespitosa Deschampsia caespitosa (L.) Beauv. var. glauca (Hartman) Lindm. f., non Regel DECAG2 Deschampsia caespitosa Deschampsia caespitosa (L.) Beauv. var. intercotidalis Boivin DECAI4 Deschampsia caespitosa Deschampsia caespitosa (L.) Beauv. var. littoralis (Gaudin) Richter DECAL2 Deschampsia caespitosa Deschampsia caespitosa (L.) Beauv. var. longiflora Beal DECAL Deschampsia caespitosa Deschampsia caespitosa (L.) Beauv. var. mackenzieana (Raup) Boivin DECAM3 Deschampsia caespitosa Deschampsia caespitosa (L.) Beauv. var. maritima Vasey DECAM2 Deschampsia caespitosa Deschampsia caespitosa (L.) Beauv. var. parviflora (Thuill.) Coss. & Germ. DECAP4 Deschampsia caespitosa Deschampsia cespitosa (L.) Beauv. ssp. genuina (Reichenb.) Volk. [orthographic variant] DECEG3 Deschampsia caespitosa Deschampsia cespitosa (L.) Beauv. ssp. glauca (Hartman) Hartman [orthographic variant] DECEG2 Deschampsia caespitosa Deschampsia cespitosa (L.) Beauv. ssp. orientalis Hult?n [orthographic variant] DECEO Deschampsia caespitosa Deschampsia cespitosa (L.) Beauv. ssp. paramushirensis (Honda) Tzvelev [orthographic variant] DECEP2 Deschampsia caespitosa Deschampsia cespitosa (L.) Beauv. ssp. parviflora (Thuill.) Jarmolenko & Soo [orthographic variant] DECEP3 Deschampsia caespitosa Deschampsia cespitosa (L.) Beauv. var. abbei Boivin [orthographic variant] DECEA4 Deschampsia caespitosa Deschampsia cespitosa (L.) Beauv. var. alpicola (Rydb.) A.& D. L?ve & Kapoor [orthographic variant] DECEA Deschampsia caespitosa Deschampsia cespitosa (L.) Beauv. var. arctica Vasey [orthographic variant] DECEA3 Deschampsia caespitosa Deschampsia cespitosa (L.) Beauv. var. glauca (Hartman) Lindm. f., non Regel [orthographic variant] DECEG Deschampsia caespitosa Deschampsia cespitosa (L.) Beauv. var. intercotidalis Boivin [orthographic variant] DECEI Deschampsia caespitosa Deschampsia cespitosa (L.) Beauv. var. littoralis (Gaudin) Richter [orthographic variant] DECEL Deschampsia caespitosa Deschampsia cespitosa (L.) Beauv. var. longiflora Beal [orthographic variant] DECEL2 Deschampsia caespitosa Deschampsia cespitosa (L.) Beauv. var. mackenzieana (Raup) Boivin [orthographic variant] 2-Dec Deschampsia caespitosa Deschampsia cespitosa (L.) Beauv. var. maritima Vasey [orthographic variant] DECEM Deschampsia caespitosa Deschampsia cespitosa (L.) Beauv. var. pallida Gren. & Godr. DECEP4 Deschampsia caespitosa Deschampsia cespitosa (L.) Beauv. var. parviflora (Thuill.) Coss. & Germ. [orthographic variant] DECEP Deschampsia caespitosa Deschampsia cespitosa (L.) Beauv. [orthographic variant] DECE Deschampsia caespitosa Deschampsia cespitosa (L.) P. Beauv. ssp. cespitosa (L.) P. Beauv. [superfluous autonym] DECEC2 Deschampsia caespitosa Deschampsia glauca Hartman DEGL9 Deschampsia caespitosa Deschampsia mackenzieana Raup DEMA3 Deschampsia caespitosa Deschampsia paramushirensis Honda DEPA11 Deschampsia caespitosa Deschampsia pumila (Ledeb.) Ostenf. DEPU3 Deschampsia caespitosa Deschampsia sukatschewii (Popl.) Rosh. DESU2 Deschampsia cespitosa ssp. bottonia Deschampsia bottonia (Wahl.) Trin. [excluded] DEBO2 Deschampsia cespitosa ssp. bottonia Deschampsia cespitosa (L.) Beauv. var. bottonia (Wahl.) Vasey [excluded] DECEB6 Deschampsia cespitosa ssp. obensis Deschampsia obensis Rosh. [excluded] DEOB6 Deschampsia danthonioides Aira danthonioides Trin. AIDA Deschampsia danthonioides Deschampsia calycina J. Presl DECA10 Deschampsia danthonioides Deschampsia danthonioides (Trin.) Munro var. gracilis (Vasey) Munz DEDAG Deschampsia elongata Aira elongata Hook. AIEL3 Deschampsia flexuosa var. flexuosa Aira flexuosa L. AIFL Deschampsia flexuosa var. flexuosa Avenella flexuosa (L.) Drej. AVFL2 Deschampsia flexuosa var. flexuosa Lerchenfeldia flexuosa (L.) Schur LEFL5 Deschampsia flexuosa var. montana Avenella flexuosa (L.) Drej. ssp. montana (L.) A.& D. L?ve AVFLM Deschampsia flexuosa var. montana Deschampsia flexuosa (L.) Trin. ssp. montana (L.) A.& D. L?ve DEFLM2 Deschampsia flexuosa var. montana Deschampsia flexuosa (L.) Trin. var. pallida Berl. DEFLP Deschampsia flexuosa var. montana Lerchenfeldia flexuosa (L.) Schur ssp. montana (L.) Tzvelev LEFLM Deschampsia holciformis Aira holciformis (J. Presl) Steud. AIHO Deschampsia holciformis Deschampsia caespitosa (L.) Beauv. ssp. holciformis (J. Presl) W.E. Lawrence DECAH2 Deschampsia holciformis Deschampsia cespitosa (L.) Beauv. ssp. holciformis (J. Presl) W.E. Lawrence [orthographic variant] DECEH Deschampsia nubigena Deschampsia australis auct. non Nees ex Steud. [misapplied] DEAUG Deschampsia nubigena Deschampsia australis Nees ex Steud. ssp. nubigena (Hbd.) Skottsberg DEAUN Deschampsia nubigena Deschampsia australis Nees ex Steud. var. gracilis Skottsberg DEAUG2 Deschampsia nubigena Deschampsia australis Nees ex Steud. var. nubigena (Hbd.) Skottsberg DEAUN2 Deschampsia nubigena Deschampsia australis Nees ex Steud. var. tenuissima (Skottsberg) Skottsberg DEAUT2 Deschampsia nubigena Deschampsia pallens Hbd. DEPA8 desert fescue Vulpia microstachys (Nutt.) Munro var. microstachys VUMIM desert grass Panicum turgidum Forssk. PATU8 desert lovegrass Eragrostis pectinacea (Michx.) Nees ex Steud. var. miserrima (Fourn.) J. Reeder ERPEM desert muhly Muhlenbergia glauca (Nees) B.D. Jackson MUGL2 desert needlegrass Achnatherum speciosum (Trin. & Rupr.) Barkworth ACSP12 desert panicgrass Panicum urvilleanum Kunth PAUR desert poa Poa maniototo Petrie POMA38 desert wheatgrass Agropyron desertorum (Fisch. ex Link) J.A. Schultes AGDE2 desertgrass Blepharidachne Hack. BLEPH Devils Canyon muhly Muhlenbergia appressa C.O. Goodding MUAP Diarrhena americana Diarina festucoides Raf. DIFE Diarrhena americana Korycarpus arundinaceus Zea ex Lag. KOAR2 Diarrhena obovata Diarrhena americana Beauv. var. obovata Gleason DIAMO2 Diaz bluestem Dichanthium annulatum (Forsskal) Stapf var. annulatum DIANA Dichanthelium ?scoparioides Panicum scoparioides Ashe PASC18 Dichanthelium ?scoparioides Panicum shastense Scribn. & Merr. PASH Dichanthelium ?scoparioides Panicum villosissimum Nash var. scoparioides (Ashe) Fern. PAVIS2 Dichanthelium aciculare Dichanthelium angustifolium (Ell.) Gould DIAN4 Dichanthelium aciculare Dichanthelium fusiforme (A.S. Hitchc.) Harville DIFU6 Dichanthelium aciculare Panicum aciculare Desv. ex Poir. PAAC11 Dichanthelium aciculare Panicum aciculare Desv. ex Poir. var. angustifolium (Ell.) J. Wipff & S.D. Jones PAACA2 Dichanthelium aciculare Panicum aciculare Desv. ex Poir. var. arenicoloides (Ashe) Beetle PAACA4 Dichanthelium aciculare Panicum angustifolium Ell. PAAN9 Dichanthelium aciculare Panicum arenicoloides Ashe PAAR10 Dichanthelium aciculare Panicum bennettense W.V. Brown PABE9 Dichanthelium aciculare Panicum fusiforme A.S. Hitchc. PAFU3 Dichanthelium aciculare Panicum nemopanthum Ashe PANE8 Dichanthelium aciculare Panicum neuranthum Griseb. PANE6 Dichanthelium aciculare Panicum orthophyllum Ashe PAOR7 Dichanthelium aciculare Panicum ovinum Scribn. & J.G. Sm. PAOV3 Dichanthelium aciculare Panicum pinetorum Swallen PAPI5 Dichanthelium acuminatum var. acuminatum Dichanthelium auburne (Ashe) Mohlenbrock DIAU5 Dichanthelium acuminatum var. acuminatum Panicum acuminatum Sw. PAAC5 Dichanthelium acuminatum var. acuminatum Panicum acuminatum Sw. var. acuminatum Sw. [superfluous autonym] PAACA5 Dichanthelium acuminatum var. acuminatum Panicum auburne Ashe PAAU6 Dichanthelium acuminatum var. acuminatum Panicum benneri Fern. PABE6 Dichanthelium acuminatum var. acuminatum Panicum chrysopsidifolium Nash PACH7 Dichanthelium acuminatum var. fasciculatum Dichanthelium acuminatum (Sw.) Gould & C.A. Clark var. implicatum (Scribn.) Gould & C.A. Clark DIACI Dichanthelium acuminatum var. fasciculatum Dichanthelium lanuginosum (Ell.) Gould DILA11 Dichanthelium acuminatum var. fasciculatum Dichanthelium lanuginosum (Ell.) Gould var. fasciculatum (Torr.) Spellenberg DILAF Dichanthelium acuminatum var. fasciculatum Dichanthelium subvillosum (Ashe) Mohlenbrock DISU13 Dichanthelium acuminatum var. fasciculatum Panicum acuminatum Sw. var. fasciculatum (Torr.) Lelong PAACF Dichanthelium acuminatum var. fasciculatum Panicum acuminatum Sw. var. implicatum (Scribn.) C.F. Reed PAACI Dichanthelium acuminatum var. fasciculatum Panicum brodiei St. John PABR7 Dichanthelium acuminatum var. fasciculatum Panicum curtifolium Nash PACU3 Dichanthelium acuminatum var. fasciculatum Panicum glutinoscabrum Fern. PAGL10 Dichanthelium acuminatum var. fasciculatum Panicum huachucae Ashe PAHU4 Dichanthelium acuminatum var. fasciculatum Panicum huachucae Ashe var. fasciculatum (Torr.) F.T. Hubbard PAHUF2 Dichanthelium acuminatum var. fasciculatum Panicum implicatum Scribn. PAIM3 Dichanthelium acuminatum var. fasciculatum Panicum languidum A.S. Hitchc. PALA29 Dichanthelium acuminatum var. fasciculatum Panicum lanuginosum Ell. var. fasciculatum (Torr.) Fern. PALAF2 Dichanthelium acuminatum var. fasciculatum Panicum lanuginosum Ell. var. huachucae (Ashe) A.S. Hitchc. PALAH Dichanthelium acuminatum var. fasciculatum Panicum lanuginosum Ell. var. implicatum (Scribn.) Fern. PALAI Dichanthelium acuminatum var. fasciculatum Panicum lanuginosum Ell. var. tennesseense (Ashe) Gleason PALAT Dichanthelium acuminatum var. fasciculatum Panicum lanuginosum Ell., non Bosc ex Spreng. PALA18 Dichanthelium acuminatum var. fasciculatum Panicum lassenianum Schmoll PALA17 Dichanthelium acuminatum var. fasciculatum Panicum lindheimeri Nash var. fasciculatum (Torr.) Fern. PALIF Dichanthelium acuminatum var. fasciculatum Panicum occidentale Scribn. PAOC Dichanthelium acuminatum var. fasciculatum Panicum pacificum A.S. Hitchc. & Chase PAPA Dichanthelium acuminatum var. fasciculatum Panicum subvillosum Ashe PASU6 Dichanthelium acuminatum var. fasciculatum Panicum tennesseense Ashe PATE15 Dichanthelium acuminatum var. lindheimeri Dichanthelium lanuginosum (Ell.) Gould var. lindheimeri (Nash) Fern. DILAL2 Dichanthelium acuminatum var. lindheimeri Dichanthelium lindheimeri (Nash) Gould DILI5 Dichanthelium acuminatum var. lindheimeri Panicum acuminatum Sw. var. lindheimeri (Nash) Lelong PAACL Dichanthelium acuminatum var. lindheimeri Panicum lanuginosum Ell. var. lindheimeri (Nash) Fern. PALAL2 Dichanthelium acuminatum var. lindheimeri Panicum lanuginosum Ell. var. septentrionale (Fern.) Fern. PALAS Dichanthelium acuminatum var. lindheimeri Panicum lindheimeri Nash PALI11 Dichanthelium acuminatum var. sericeum Panicum ferventicola Schmoll PAFE2 Dichanthelium acuminatum var. sericeum Panicum ferventicola Schmoll var. papillosum Schmoll PAFEP Dichanthelium acuminatum var. sericeum Panicum ferventicola Schmoll var. sericeum Schmoll PAFES Dichanthelium acuminatum var. thermale Dichanthelium lanuginosum (Ell.) Gould var. thermale (Boland.) Spellenberg DILAT Dichanthelium acuminatum var. thermale Panicum thermale Boland. PATH Dichanthelium acuminatum var. thurowii Panicum acuminatum Sw. var. thurowii (Scribn. & J.G. Sm.) C.F. Reed PAACT Dichanthelium acuminatum var. thurowii Panicum thurowii Scribn. & J.G. Sm. PATH4 Dichanthelium boreale Panicum bicknellii Nash PABI7 Dichanthelium boreale Panicum bicknellii Nash var. bushii (Nash) Farw. PABIB Dichanthelium boreale Panicum boreale Nash PABO8 Dichanthelium boreale Panicum boreale Nash var. michiganense Farw. PABOM Dichanthelium boreale Panicum bushii Nash PABU2 Dichanthelium boreale Panicum calliphyllum Ashe PACA19 Dichanthelium boscii Dichanthelium boscii (Poir.) Gould & C.A. Clark var. molle (Vasey) Mohlenbrock DIBOM Dichanthelium boscii Panicum boscii Poir. PABO5 Dichanthelium boscii Panicum boscii Poir. var. molle (Vasey) A.S. Hitchc. & Chase PABOM2 Dichanthelium clandestinum Panicum clandestinum L. PACL5 Dichanthelium commutatum Dichanthelium commutatum (J.A. Schultes) Gould var. ashei (Pearson ex Ashe) Mohlenbrock DICOA2 Dichanthelium commutatum Dichanthelium joorii (Vasey) Mohlenbrock DIJO Dichanthelium commutatum Panicum ashei Pearson ex Ashe PAAS3 Dichanthelium commutatum Panicum commutatum J.A. Schultes PACO21 Dichanthelium commutatum Panicum commutatum J.A. Schultes var. ashei (Pearson ex Ashe) Fern. PACOA Dichanthelium commutatum Panicum commutatum J.A. Schultes var. joorii (Vasey) Fern. PACOJ Dichanthelium commutatum Panicum equilaterale Scribn. PAEQ2 Dichanthelium commutatum Panicum joorii Vasey PAJO3 Dichanthelium commutatum Panicum mutabile Scribn. & J.G. Sm. PAMU10 Dichanthelium consanguineum Panicum acuminatum Sw. var. consanguineum (Kunth) J. Wipff & S.D. Jones PAACC2 Dichanthelium consanguineum Panicum consanguineum Kunth PACO31 Dichanthelium consanguineum Panicum deamii A.S. Hitchc. & Chase PADE10 Dichanthelium consanguineum Panicum georgianum Ashe PAGE6 Dichanthelium cynodon Dichanthelium forbesii (A.S. Hitchc.) C.A. Clark & Gould DIFO2 Dichanthelium cynodon Panicum alakaiense Skottsberg PAAL12 Dichanthelium cynodon Panicum cynodon Reichardt PACY3 Dichanthelium cynodon Panicum forbesii A.S. Hitchc. PAFO4 Dichanthelium cynodon Panicum imbricatum Hbd. PAIM4 Dichanthelium cynodon Panicum imbricatum Hbd. var. molokaiense Skottsberg PAIMM Dichanthelium cynodon Panicum lamiatile St. John PALA22 Dichanthelium cynodon Panicum lustriale St. John PALU3 Dichanthelium depauperatum Panicum depauperatum Muhl. PADE12 Dichanthelium depauperatum Panicum depauperatum Muhl. var. involutum (Torr.) Wood PADEI Dichanthelium depauperatum Panicum depauperatum Muhl. var. psilophyllum Fern. PADEP Dichanthelium depauperatum Panicum strictum Pursh var. psilophyllum (Fern.) Farw. PASTP Dichanthelium dichotomum var. breve Dichanthelium ensifolium (Baldw. ex Ell.) Gould var. breve (A.S. Hitchc. & Chase) B.F. Hansen & Wunderlin DIENB Dichanthelium dichotomum var. breve Panicum breve A.S. Hitchc. & Chase PABR5 Dichanthelium dichotomum var. breve Panicum chamaelonche Trin. var. breve (A.S. Hitchc. & Chase) Lelong PACHB Dichanthelium dichotomum var. breve Panicum ensifolium Baldw. ex Ell. var. breve (A.S. Hitchc. & Chase) J. Wipff & S.D. Jones PAENB Dichanthelium dichotomum var. dichotomum Dichanthelium annulum (Ashe) R. LeBlond DIAN10 Dichanthelium dichotomum var. dichotomum Dichanthelium caerulescens (Hack. ex A.S. Hitchc.) Correll DICA34 Dichanthelium dichotomum var. dichotomum Dichanthelium dichotomum (L.) Gould ssp. mattamuskeetense (Ashe) Freckmann & Lelong DIDIM Dichanthelium dichotomum var. dichotomum Dichanthelium dichotomum (L.) Gould var. barbulatum (Michx.) Mohlenbrock DIDIB2 Dichanthelium dichotomum var. dichotomum Dichanthelium dichotomum (L.) Gould var. nitidum (Lam.) R. LeBlond DIDIN Dichanthelium dichotomum var. dichotomum Dichanthelium dichotomum (L.) Gould var. ramylosum (Torr.) R. LeBlond DIDIR Dichanthelium dichotomum var. dichotomum Dichanthelium dichotomum (L.) Gould var. roanokense (Ashe) R. LeBlond DIDIR2 Dichanthelium dichotomum var. dichotomum Dichanthelium lucidum (Ashe) R. LeBlond DILU6 Dichanthelium dichotomum var. dichotomum Dichanthelium mattamuskeetense (Ashe) Mohlenbrock DIMA9 Dichanthelium dichotomum var. dichotomum Dichanthelium microcarpon (Muhl. ex Ell.) Mohlenbrock DIMI5 Dichanthelium dichotomum var. dichotomum Dichanthelium nitidum (Lam.) Mohlenbrock DINI2 Dichanthelium dichotomum var. dichotomum Dichanthelium nudicaule (Vasey) B.F. Hansen & Wunderlin DINU7 Dichanthelium dichotomum var. dichotomum Dichanthelium sphagnicola (Nash) R. LeBlond DISP10 Dichanthelium dichotomum var. dichotomum Dichanthelium yadkinense (Ashe) Mohlenbrock DIYA Dichanthelium dichotomum var. dichotomum Panicum annulum Ashe PAAN10 Dichanthelium dichotomum var. dichotomum Panicum annulum Ashe var. glabrescens Gleason PAANG Dichanthelium dichotomum var. dichotomum Panicum barbulatum Michx. PABA7 Dichanthelium dichotomum var. dichotomum Panicum caerulescens Hack. ex A.S. Hitchc. PACA20 Dichanthelium dichotomum var. dichotomum Panicum clutei Nash PACL6 Dichanthelium dichotomum var. dichotomum Panicum dichotomum L. PADI8 Dichanthelium dichotomum var. dichotomum Panicum dichotomum L. var. barbulatum (Michx.) Wood PADIB2 Dichanthelium dichotomum var. dichotomum Panicum dichotomum L. var. clutei (Nash) C.F. Reed PADIC Dichanthelium dichotomum var. dichotomum Panicum dichotomum L. var. lucidum (Ashe) Lelong PADIL Dichanthelium dichotomum var. dichotomum Panicum dichotomum L. var. mattamuskeetense (Ashe) Lelong PADIM Dichanthelium dichotomum var. dichotomum Panicum dichotomum L. var. ramulosum (Torr.) Lelong PADIR Dichanthelium dichotomum var. dichotomum Panicum dichotomum L. var. roanokense (Ashe) Lelong PADIR2 Dichanthelium dichotomum var. dichotomum Panicum dichotomum L. var. yadkinense (Ashe) Lelong PADIY Dichanthelium dichotomum var. dichotomum Panicum lucidum Ashe PALU4 Dichanthelium dichotomum var. dichotomum Panicum lucidum Ashe var. opacum Fern. PALUO Dichanthelium dichotomum var. dichotomum Panicum mattamuskeetense Ashe PAMA10 Dichanthelium dichotomum var. dichotomum Panicum mattamuskeetense Ashe var. clutei (Nash) Fern. PAMAC Dichanthelium dichotomum var. dichotomum Panicum microcarpon Muhl. ex Ell., non Muhl. PAMI6 Dichanthelium dichotomum var. dichotomum Panicum nitidum Lam. PANI4 Dichanthelium dichotomum var. dichotomum Panicum nudicaule Vasey PANU7 Dichanthelium dichotomum var. dichotomum Panicum roanokense Ashe PARO4 Dichanthelium dichotomum var. dichotomum Panicum sphagnicola Nash PASP7 Dichanthelium dichotomum var. dichotomum Panicum yadkinense Ashe PAYA2 Dichanthelium dichotomum var. ensifolium Dichanthelium ensifolium (Baldw. ex Ell.) Gould DIEN Dichanthelium dichotomum var. ensifolium Panicum chamaelonche Trin. PACH9 Dichanthelium dichotomum var. ensifolium Panicum dichotomum L. var. ensifolium (Baldw. ex Ell.) C.F. Reed PADIE Dichanthelium dichotomum var. ensifolium Panicum dichotomum L. var. nitidum Chapman ex Scribn. PADIN Dichanthelium dichotomum var. ensifolium Panicum ensifolium Baldw. ex Ell. PAEN3 Dichanthelium dichotomum var. ensifolium Panicum ensifolium Baldw. ex Ell. var. curtifolium (Nash) Lelong PAENC Dichanthelium dichotomum var. ensifolium Panicum flavovirens Nash PAFL10 Dichanthelium dichotomum var. ensifolium Panicum vernale A.S. Hitchc. & Chase PAVE4 Dichanthelium dichotomum var. glabrifolium Panicum glabrifolium Nash PAGL6 Dichanthelium dichotomum var. tenue Dichanthelium ensifolium (Baldw. ex Ell.) Gould var. unciphyllum (Trin.) B.F. Hansen & Wunderlin DIENU Dichanthelium dichotomum var. tenue Panicum albomarginatum Nash PAAL18 Dichanthelium dichotomum var. tenue Panicum concinnius A.S. Hitchc. & Chase PACO23 Dichanthelium dichotomum var. tenue Panicum dichotomum L. var. tenue (Muhl.) C.F. Reed PADIT Dichanthelium dichotomum var. tenue Panicum dichotomum L. var. unciphyllum (Trin.) J. Wipff & S.D. Jones PADIU Dichanthelium dichotomum var. tenue Panicum tenue Muhl. PATE17 Dichanthelium dichotomum var. tenue Panicum trifolium Nash PATR8 Dichanthelium erectifolium Panicum erectifolium Nash PAER4 Dichanthelium hillebrandianum Dichanthelium conjugens (Skottsberg) C.A. Clark & Gould DICO3 Dichanthelium hillebrandianum Panicum conjugens Skottsberg PACO26 Dichanthelium hillebrandianum Panicum hillebrandianum A.S. Hitchc. PAHI12 Dichanthelium hillebrandianum Panicum hillebrandianum A.S. Hitchc. var. gracile Skottsberg PAHIG Dichanthelium hirstii Panicum hirstii Swallen PAHI10 Dichanthelium isachnoides Panicum isachnoides Munro ex Hbd. PAIS2 Dichanthelium isachnoides Panicum isachnoides Munro ex Hbd. var. kilohanae Skottsberg PAISK Dichanthelium koolauense Panicum koolauense St. John & Hosaka PAKO4 Dichanthelium koolauense Panicum oreoboloides (Whitney) Skottsberg PAOR8 Dichanthelium koolauense Panicum oreoboloides (Whitney) Skottsberg var. subimbricatum Skottsberg PAORS Dichanthelium latifolium Panicum latifolium L. PALA23 Dichanthelium laxiflorum Panicum laxiflorum Lam. PALA15 Dichanthelium laxiflorum Panicum laxiflorum Lam. var. strictirameum (A.S. Hitchc. & Chase) Fern. PALAS2 Dichanthelium laxiflorum Panicum xalapense Kunth PAXA3 Dichanthelium leibergii Panicum leibergii (Vasey) Scribn. PALE7 Dichanthelium leibergii Panicum leibergii (Vasey) Scribn. var. baldwinii Lepage PALEB Dichanthelium leibergii Panicum scoparium Lam. var. leibergii Vasey PASCL Dichanthelium leibergii Panicum scribnerianum Nash var. leibergii (Vasey) Scribn. PASCL2 Dichanthelium leucothrix Panicum acuminatum Sw. var. leucothrix (Nash) Lelong PAACL2 Dichanthelium leucothrix Panicum leucothrix Nash PALE12 Dichanthelium linearifolium Dichanthelium depauperatum (Muhl.) Gould var. perlorgum (Nash) Boivin DIDEP Dichanthelium linearifolium Dichanthelium linearifolium (Scribn. ex Nash) Gould var. werneri (Scribn.) Mohlenbrock DILIW Dichanthelium linearifolium Dichanthelium perlongum (Nash) Freckmann DIPE5 Dichanthelium linearifolium Panicum linearifolium Scribn. ex Nash PALI9 Dichanthelium linearifolium Panicum linearifolium Scribn. ex Nash var. werneri (Scribn.) Fern. PALIW Dichanthelium linearifolium Panicum perlongum Nash PAPE10 Dichanthelium linearifolium Panicum strictum Pursh var. linearifolium (Scribn. ex Nash) Farw. PASTL Dichanthelium linearifolium Panicum strictum Pursh var. perlongum (Nash) Farw. PASTP3 Dichanthelium linearifolium Panicum werneri Scribn. PAWE5 Dichanthelium longiligulatum Dichanthelium acuminatum (Sw.) Gould & C.A. Clark var. longiligulatum (Nash) Gould & C.A. Clark DIACL2 Dichanthelium longiligulatum Panicum acuminatum Sw. var. longiligulatum (Nash) Lelong PAACL3 Dichanthelium longiligulatum Panicum longiligulatum Nash PALO9 Dichanthelium malacophyllum Panicum malacophyllum Nash PAMA11 Dichanthelium meridionale Dichanthelium meridionale (Ashe) Freckmann var. acuminatum (Ashe) Mohlenbrock DIMEA Dichanthelium meridionale Panicum acuminatum Sw. var. unciphyllum (Trin.) Lelong PAACU Dichanthelium meridionale Panicum albemarlense Ashe PAAL13 Dichanthelium meridionale Panicum meridionale Ashe PAME7 Dichanthelium meridionale Panicum meridionale Ashe var. albemarlense (Ashe) Fern. PAMEA Dichanthelium nodatum Panicum nodatum A.S. Hitchc. & Chase PANO3 Dichanthelium oligosanthes var. oligosanthes Panicum oligosanthes J.A. Schultes PAOL2 Dichanthelium oligosanthes var. scribnerianum Dichanthelium oligosanthes (J.A. Schultes) Gould var. helleri (Nash) Mohlenbrock DIOLH Dichanthelium oligosanthes var. scribnerianum Panicum helleri Nash PAHE8 Dichanthelium oligosanthes var. scribnerianum Panicum macrocarpon Le Conte ex Torr. PAMA14 Dichanthelium oligosanthes var. scribnerianum Panicum oligosanthes J.A. Schultes var. helleri (Nash) Fern. PAOLH Dichanthelium oligosanthes var. scribnerianum Panicum oligosanthes J.A. Schultes var. scribnerianum (Nash) Fern. PAOLS Dichanthelium oligosanthes var. scribnerianum Panicum scoparium S. Wats. ex Nash, non Lam. PASC10 Dichanthelium oligosanthes var. scribnerianum Panicum scribnerianum Nash PASC5 Dichanthelium ovale var. addisonii Dichanthelium commonsianum (Ashe) Freckmann DICO11 Dichanthelium ovale var. addisonii Panicum addisonii Nash PAAD5 Dichanthelium ovale var. addisonii Panicum alabamense Ashe PAAL10 Dichanthelium ovale var. addisonii Panicum columbianum Scribn. var. commonsianum (Ashe) McNeill & Dore PACOC2 Dichanthelium ovale var. addisonii Panicum commonsianum Ashe PACO20 Dichanthelium ovale var. addisonii Panicum commonsianum Ashe var. addisonii (Nash) W. Stone ex Fern. PACOA2 Dichanthelium ovale var. addisonii Panicum mundum Fern. PAMU7 Dichanthelium ovale var. addisonii Panicum ovale Ell. var. addisonii (Nash) C.F. Reed PAOVA Dichanthelium ovale var. addisonii Panicum owenae Bickn. PAOW Dichanthelium ovale var. addisonii Panicum wilmingtonense Ashe PAWI4 Dichanthelium ovale var. ovale Panicum malacon Nash PAMA12 Dichanthelium ovale var. ovale Panicum ovale Ell. PAOV4 Dichanthelium pedicellatum Panicum pedicellatum Vasey PAPE7 Dichanthelium ravenelii Panicum ravenelii Scribn. & Merr. PARA13 Dichanthelium sabulorum var. patulum Dichanthelium commonsianum (Ashe) Freckmann var. euchlamydeum (Shinners) Freckmann DICOE Dichanthelium sabulorum var. patulum Panicum columbianum Scribn. var. siccanum (A.S. Hitchc. & Chase) Boivin PACOS Dichanthelium sabulorum var. patulum Panicum commonsianum Ashe var. euchlamydeum (Shinners) Pohl PACOE Dichanthelium sabulorum var. patulum Panicum euchlamydeum Shinners PAEU Dichanthelium sabulorum var. patulum Panicum lancearium Trin. PALA24 Dichanthelium sabulorum var. patulum Panicum lancearium Trin. var. patulum (Scribn. & Merr.) Fern. PALAP4 Dichanthelium sabulorum var. patulum Panicum lanuginosum Ell. var. siccanum A.S. Hitchc. & Chase PALAS3 Dichanthelium sabulorum var. patulum Panicum nashianum Scribn. PANA2 Dichanthelium sabulorum var. patulum Panicum nashianum Scribn. var. patulum Scribn. & Merr. PANAP Dichanthelium sabulorum var. patulum Panicum onslowense Ashe PAON Dichanthelium sabulorum var. patulum Panicum patentifolium Nash PAPA5 Dichanthelium sabulorum var. patulum Panicum patulum (Scribn. & Merr.) A.S. Hitchc. PAPA26 Dichanthelium sabulorum var. patulum Panicum portoricense Desv. ex Hamilton var. nashianum (Scribn.) Lelong PAPON Dichanthelium sabulorum var. patulum Panicum sabulorum Lam. var. patulum (Scribn. & Merr.) C.F. Reed PASAP2 Dichanthelium sabulorum var. patulum Panicum tsugetorum Nash PATS2 Dichanthelium sabulorum var. patulum Panicum webberianum Nash PAWE3 Dichanthelium sabulorum var. thinium Dichanthelium columbianum (Scribn.) Freckmann DICO12 Dichanthelium sabulorum var. thinium Dichanthelium portoricense (Desv. ex Hamilton) B.F. Hansen & Wunderlin DIPO3 Dichanthelium sabulorum var. thinium Panicum acuminatum Sw. var. columbianum (Scribn.) Lelong PAACC Dichanthelium sabulorum var. thinium Panicum columbianum Scribn. PACO29 Dichanthelium sabulorum var. thinium Panicum columbianum Scribn. var. oricola (A.S. Hitchc. & Chase) Fern. PACOO Dichanthelium sabulorum var. thinium Panicum columbianum Scribn. var. thinium A.S. Hitchc. & Chase PACOT Dichanthelium sabulorum var. thinium Panicum heterophyllum Bosc ex Nees PAHE7 Dichanthelium sabulorum var. thinium Panicum heterophyllum Bosc ex Nees var. thinium (A.S. Hitchc. & Chase) F.T. Hubbard PAHET Dichanthelium sabulorum var. thinium Panicum oricola A.S. Hitchc. & Chase PAOR6 Dichanthelium sabulorum var. thinium Panicum portoricense Desv. ex Hamilton PAPO7 Dichanthelium sabulorum var. thinium Panicum sabulorum Lam. var. thinium (A.S. Hitchc. & Chase) C.F. Reed PASAT Dichanthelium sabulorum var. thinium Panicum unciphyllum Trin. var. thinium A.S. Hitchc. & Chase PAUNT Dichanthelium scabriusculum Panicum aculeatum A.S. Hitchc. & Chase PAAC7 Dichanthelium scabriusculum Panicum cryptanthum Ashe PACR6 Dichanthelium scabriusculum Panicum lanuginosum Bosc ex Spreng., non Ell. PALA30 Dichanthelium scabriusculum Panicum recognitum Fern. PARE11 Dichanthelium scabriusculum Panicum scabriusculum Ell. PASC8 Dichanthelium scabriusculum Panicum scabriusculum Ell. var. cryptanthum (Ashe) Gleason PASCC Dichanthelium scoparium Panicum scoparium Lam. PASC9 Dichanthelium sphaerocarpon var. isophyllum Dichanthelium polyanthes (J.A. Schultes) Mohlenbrock DIPO4 Dichanthelium sphaerocarpon var. isophyllum Dichanthelium sphaerocarpon (Ell.) Gould var. polyanthes (J.A. Schultes) Gould DISPP Dichanthelium sphaerocarpon var. isophyllum Panicum microcarpon Muhl. var. isophyllum Scribn. PAMII Dichanthelium sphaerocarpon var. isophyllum Panicum microcarpon Muhl., non Muhl. ex Ell. PAMI9 Dichanthelium sphaerocarpon var. isophyllum Panicum polyanthes J.A. Schultes PAPO4 Dichanthelium sphaerocarpon var. isophyllum Panicum sphaerocarpon Ell. var. isophyllum (Scribn.) J. Wipff & S.D. Jones PASPI2 Dichanthelium sphaerocarpon var. isophyllum Panicum sphaerocarpon Ell. var. polyanthes (J.A. Schultes) A.S. Sherif PASPP Dichanthelium sphaerocarpon var. sphaerocarpon Panicum sphaerocarpon Ell. PASP8 Dichanthelium sphaerocarpon var. sphaerocarpon Panicum sphaerocarpon Ell. var. inflatum (Scribn. & J.G. Sm.) A.S. Hitchc. & Chase PASPI Dichanthelium spretum Dichanthelium acuminatum (Sw.) Gould & C.A. Clark var. densiflorum (Rand & Redf.) Gould & C.A. Clark DIACD Dichanthelium spretum Panicum acuminatum Sw. var. densiflorum (Rand & Redf.) Lelong PAACD Dichanthelium spretum Panicum eatonii Nash PAEA Dichanthelium spretum Panicum nitidum Lam. var. densiflorum Rand & Redf. PANID Dichanthelium spretum Panicum nitidum Lam. var. octonodum (Sm.) Scribn. & Merr. PANIO Dichanthelium spretum Panicum octonodum Sm. PAOC2 Dichanthelium spretum Panicum paucipilum Nash PAPA23 Dichanthelium spretum Panicum spretum J.A. Schultes PASP9 Dichanthelium strigosum var. glabrescens Dichanthelium leucoblepharis (Trin.) Gould & C.A. Clark var. glabrescens (Griseb.) Gould & C.A. Clark DILEG Dichanthelium strigosum var. glabrescens Panicum dichotomum L. var. glabrescens Griseb. PADIG2 Dichanthelium strigosum var. glabrescens Panicum polycaulon Nash PAPO8 Dichanthelium strigosum var. glabrescens Panicum strigosum Muhl. ex Ell. var. glabrescens (Griseb.) Lelong PASTG Dichanthelium strigosum var. leucoblepharis Dichanthelium leucoblepharis (Trin.) Gould & C.A. Clark DILE3 Dichanthelium strigosum var. leucoblepharis Panicum ciliatum Ell. PACI9 Dichanthelium strigosum var. leucoblepharis Panicum leucoblepharis Trin. PALE11 Dichanthelium strigosum var. leucoblepharis Panicum strigosum Muhl. ex Ell. var. leucoblepharis (Trin.) Lelong PASTL2 Dichanthelium strigosum var. leucoblepharis Panicum strigosum Muhl. ex Ell. var. puberula C.F. Reed PASTP2 Dichanthelium strigosum var. strigosum Dichanthelium leucoblepharis (Trin.) Gould & C.A. Clark var. pubescens (Vasey) Gould & C.A. Clark DILEP Dichanthelium strigosum var. strigosum Panicum laxiflorum Lam. var. pubescens Vasey PALAP3 Dichanthelium strigosum var. strigosum Panicum strigosum Muhl. ex Ell. PAST13 Dichanthelium villosissimum var. praecocius Dichanthelium praecocius (A.S. Hitchc. & Chase) Mohlenbrock DIPR7 Dichanthelium villosissimum var. praecocius Panicum lanuginosum Ell. var. praecocius (A.S. Hitchc. & Chase) McNeill & Dore PALAP5 Dichanthelium villosissimum var. praecocius Panicum praecocius A.S. Hitchc. & Chase PAPR11 Dichanthelium villosissimum var. villosissimum Dichanthelium acuminatum (Sw.) Gould & C.A. Clark var. villosum (Gray) Gould & C.A. Clark DIACV2 Dichanthelium villosissimum var. villosissimum Dichanthelium lanuginosum (Ell.) Gould var. villosissimum (Nash) Gould DILAV Dichanthelium villosissimum var. villosissimum Dichanthelium ovale (Ell.) Gould & C.A. Clark ssp. pseudopubescens (Nash) Freckmann & Lelong DIOVP Dichanthelium villosissimum var. villosissimum Dichanthelium villosissimum (Nash) Freckmann var. pseudopubescens (Nash) Mohlenbrock DIVIP4 Dichanthelium villosissimum var. villosissimum Panicum acuminatum Sw. var. villosissimum (Nash) C.F. Reed PAACV Dichanthelium villosissimum var. villosissimum Panicum acuminatum Sw. var. villosum (Gray) Beetle PAACV2 Dichanthelium villosissimum var. villosissimum Panicum nitidum Lam. var. villosum Gray PANIV Dichanthelium villosissimum var. villosissimum Panicum ovale Ell. var. pseudopubescens (Nash) Lelong PAOVP Dichanthelium villosissimum var. villosissimum Panicum ovale Ell. var. villosum (Gray) Lelong PAOVV Dichanthelium villosissimum var. villosissimum Panicum pseudopubescens Nash PAPS4 Dichanthelium villosissimum var. villosissimum Panicum villosissimum Nash PAVI8 Dichanthelium villosissimum var. villosissimum Panicum villosissimum Nash var. pseudopubescens (Nash) Fern. PAVIP2 Dichanthelium wilcoxianum Dichanthelium oligosanthes (J.A. Schultes) Gould var. wilcoxianum (Vasey) Gould & C.A. Clark DIOLW Dichanthelium wilcoxianum Panicum wilcoxianum Vasey PAWI5 Dichanthelium wilcoxianum Panicum wilcoxianum Vasey var. breitungii Boivin PAWIB Dichanthelium wrightianum Dichanthelium acuminatum (Sw.) Gould & C.A. Clark var. wrightianum (Scribn.) Gould & C.A. Clark DIACW Dichanthelium wrightianum Panicum acuminatum Sw. var. wrightianum (Scribn.) C.F. Reed PAACW Dichanthelium wrightianum Panicum deminutivum Peck PADE9 Dichanthelium wrightianum Panicum minutulum Desv. PAMI7 Dichanthelium wrightianum Panicum strictum Bosc ex Roemer & J.A. Schultes PAST8 Dichanthelium wrightianum Panicum wrightianum Scribn. PAWR7 Dichanthelium xanthophysum Panicum xanthophysum Gray PAXA4 Dichanthium annulatum Andropogon annulatus Forssk. ANAN12 Dichanthium annulatum Andropogon nodosus (Willem.) Nash ANNO4 Dichanthium annulatum var. papillosum Andropogon papillosus Hochst. ex A. Rich. ANPA15 Dichanthium annulatum var. papillosum Dichanthium papillosum (Hochst. ex A. Rich.) Stapf DIPA17 Dichanthium aristatum Andropogon aristatus Poir. ANAR21 Dichanthium sericeum Andropogon sericeus R. Br. ANSE13 Dichanthium tenuiculum Dichanthium superciliatum (Hack.) A. Camus DISU7 Dichelachne crinita Deyeuxia crinita (L. f.) Zotov DECR2 Dichelachne crinita Dichelachne crinata (L. f.) Hook. f. [orthographic variant] DICR6 Dichelachne micrantha Dichelachne sciurea (R. Br.) Hook. f. DISC9 Diectomis fastigiata Andropogon fastigiata Sw. ANFA3 diente de perro Lithachne Beauv. LITHA diente de perro Lithachne pauciflora (Sw.) Beauv. LIPA7 Digitaria abyssinica Digitaria scalarum (Schweinf.) Chiov. DISC5 Digitaria abyssinica Digitaria vestita Fig. & De Not. DIVE7 Digitaria arenicola Digitaria cognata (J.A. Schultes) Pilger var. arenicola (Swallen) R. Webster DICOA Digitaria arenicola Leptoloma arenicola Swallen LEAR8 Digitaria arenicola Leptoloma cognatum (J.A. Schultes) Chase var. arenicola (Swallen) Gould LECOA Digitaria argillacea Syntherisma argillacea A.S. Hitchc. & Chase SYAR Digitaria bicornis Digitaria diversiflora Swallen DIDI7 Digitaria bicornis Paspalum bicorne Lam. PABI8 Digitaria californica Trichachne californica (Benth.) Chase TRCA17 Digitaria ciliaris Digitaria adscendens (Kunth) Henr. DIAD3 Digitaria ciliaris Digitaria sanguinalis (L.) Scop. var. ciliaris (Retz.) Parl. DISAC Digitaria ciliaris Digitaria sanguinalis (L.) Scop. var. marginata (Link) Fern. DISAM2 Digitaria ciliaris Digitaria sanguinalis (L.) Scop. var. rhachiseta (Henr.) Boivin DISAR3 Digitaria ciliaris Panicum adscendens Kunth PAAD4 Digitaria ciliaris Panicum ciliare Retz. PACI5 Digitaria ciliaris Syntherisma marginata (Link) Nash SYMA3 Digitaria cognata Digitaria cognata (J.A. Schultes) Pilger var. cognata (J.A. Schultes) Pilger [superfluous autonym] DICOC Digitaria cognata Leptoloma cognatum (J.A. Schultes) Chase LECO Digitaria eggersii Trichachne eggersii (Hack.) Henr. TREG2 Digitaria eggersii Valota eggersii (Hack.) A.S. Hitchc. & Chase VAEG2 Digitaria eriantha Digitaria decumbens Stent DIDE3 Digitaria eriantha Digitaria pentzii Stent DIPE Digitaria eriantha Digitaria pentzii Stent var. stolonifera (Stapf) Henrard DIPES2 Digitaria filiformis Digitaria laeviglumis Fern. DILA13 Digitaria filiformis Digitaria leucocoma (Nash) Urban DILE12 Digitaria filiformis Panicum filiforme L. PAFI9 Digitaria filiformis Syntherisma filiformis (L.) Nash SYFI2 Digitaria floridana Syntherisma floridana (A.S. Hitchc.) A.S. Hitchc. SYFL2 Digitaria gracillima Digitaria bakeri (Nash) Fern. DIBA5 Digitaria gracillima Syntherisma gracillima (Scribn.) Nash SYGR4 Digitaria hitchcockii Trichachne hitchcockii (Chase) Chase TRHI7 Digitaria insularis Andropogon insulare L. ANIN8 Digitaria insularis Trichachne insularis (L.) Nees TRIN8 Digitaria insularis Trichachne nutans (L.) Baum TRNU Digitaria insularis Valota insularis (L.) Chase VAIN4 Digitaria ischaemum Digitaria ischaemum (Schreb.) Schreb. ex Muhl. var. mississippiensis (Gattinger) Fern. DIISM Digitaria ischaemum Panicum ischaemum Schreb. PAIS7 Digitaria ischaemum Syntherisma ischaemum (Schreb.) Nash SYIS Digitaria leptorrhachis Digitaria chevalieri Stapf DICH12 Digitaria longiflora Paspalum longiflorum Retz. PALO6 Digitaria milanjiana Digitaria kilimandscharica Mez DIKI2 Digitaria milanjiana Digitaria milanjiana (Rendle) Stapf ssp. eylesiana Henrard DIMIE2 Digitaria milanjiana Digitaria mombasana C. E. Hubb. DIMO9 Digitaria nuda Syntherisma digitata (Sw.) A.S. Hitchc. SYDI Digitaria panicea Milium paniceum Sw. MIPA17 Digitaria panicea Syntherisma panicea (Sw.) Nash SYPA4 Digitaria patens Trichachne patens Swallen TRPA14 Digitaria pauciflora Syntherisma pauciflora (A.S. Hitchc.) A.S. Hitchc. SYPA6 Digitaria pubiflora Digitaria cognata (J.A. Schultes) Pilger ssp. pubiflora (Vasey ex L.H. Dewey) J. Wipff DICOP2 Digitaria pubiflora Digitaria cognata (J.A. Schultes) Pilger var. pubiflora Vasey ex L.H. Dewey DICOP Digitaria pubiflora Panicum autumnale Bosc ex Spreng. var. pubiflorum Vasey ex L. H. Dewey PAAUP2 Digitaria sanguinalis Panicum sanguinale L. PASA3 Digitaria sanguinalis Syntherisma sanguinalis (L.) Dulac SYSA2 Digitaria seriata Digitaria polevansii Stent DIPO5 Digitaria serotina Syntherisma serotina Walt. SYSE Digitaria setigera Digitaria microbachne (J. Presl) Henr. DIMI6 Digitaria setigera Digitaria pruriens (Fisch. ex Trin.) B?se DIPR Digitaria setigera Digitaria pruriens (Fisch. ex Trin.) B?se var. microbachne (J. Presl) Fosberg DIPRM Digitaria similis Trichachne affinis Swallen TRAF Digitaria simpsonii Syntherisma simpsonii (Vasey) Nash SYSI Digitaria texana Digitaria albicoma Swallen DIAL Digitaria texana Digitaria runyonii A.S. Hitchc. DIRU Digitaria texana Digitaria subcalva A.S. Hitchc. DISU Digitaria tomentosa Leptoloma tomentosa (Koen. ex Rottl.) Gould [excluded] LETO10 Digitaria velutina Phalaris velutina Forssk. PHVE6 Digitaria villosa Digitaria filiformis (L.) Koel. var. villosa (Walt.) Fern. DIFIV Digitaria villosa Syntherisma villosa Walt. SYVI2 Digitaria violascens Digitaria chinensis (Nees) A. Camus DICH8 Digitaria violascens Digitaria ischaemum (Schreb.) Schreb. ex Muhl. var. violascens (Link) Radford DIISV Digitaria violascens Syntherisma chinensis (Nees) A.S. Hitchc. SYCH digitgrass Digitaria eriantha Steud. DIER digitgrass Digitaria eriantha Steudel ssp. eriantha DIERE diploid timothy Phleum bertolonii DC. PHBE4 diploperennial teosinte Zea diploperennis Iltis, Doebley & Guzman [excluded] ZEDI Distichlis spicata Distichlis spicata (L.) Greene ssp. stricta (Torr.) Thorne DISPS4 Distichlis spicata Distichlis spicata (L.) Greene var. borealis (J. Presl) Beetle DISPB Distichlis spicata Distichlis spicata (L.) Greene var. divaricata Beetle DISPD Distichlis spicata Distichlis spicata (L.) Greene var. nana Beetle DISPN Distichlis spicata Distichlis spicata (L.) Greene var. stolonifera Beetle DISPS Distichlis spicata Distichlis spicata (L.) Greene var. stricta (Torr.) Scribn. DISPS2 Distichlis spicata Distichlis stricta (Torr.) Rydb. DIST3 Distichlis spicata Distichlis stricta (Torr.) Rydb. var. dentata (Rydb.) C.L. Hitchc. DISTD Distichlis spicata Uniola spicata L. UNSP2 ditch rabbitsfoot grass Polypogon interruptus Kunth POIN7 ditch reedgrass Calamagrostis scopulorum M.E. Jones CASC diverseglume wildrye Elymus diversiglumis Scribn. & Ball ELDI3 dixie signalgrass Urochloa ramosa (L.) Nguyen URRA dog fescue Festuca kashmiriana Stapf [excluded] FEKA dogstail grass Cynosurus L. CYNOS2 Dominican lovegrass Eragrostis prolifera (Sw.) Steud. ERPR7 Dominican signalgrass Urochloa adspersa (Trin.) R. Webster URAD Dore's needlegrass Achnatherum nelsonii (Scribn.) Barkworth ssp. dorei (Barkworth & Maze) Barkworth ACNED Douglas's bluegrass Poa douglasii Nees PODO downy alpine oatgrass Avenula pubescens (Huds.) Dumort. AVPU2 downy danthonia Danthonia sericea Nutt. DASE2 downy ryegrass Leymus innovatus (Beal) Pilger LEIN6 drooping timber bamboo Phyllostachys flexuosa A.& C. Rivi?re PHFL80 drooping wildrye Elymus semicostatus (Nees ex Steud.) A. L?ve ELSE6 drooping woodreed Cinna latifolia (Trev. ex Goepp.) Griseb. CILA2 dropseed Blepharoneuron Nash BLEPH4 dropseed Sporobolus microspermus (Lag.) A. Hitchcock SPMI10 dropseed Sporobolus R. Br. SPORO Drummond's dropseed Sporobolus compositus (Poir.) Merr. var. drummondii (Trin.) Kartesz & Gandhi SPCOD3 dune fescue Vulpia fasciculata (Forssk.) Fritsch VUFA dunegrass Swallenia S?derstrom & Decker SWALL Dupontia fisheri Dupontia fisheri R. Br. ssp. psilosantha (Rupr.) Hult DUFIP Dupontia fisheri Dupontia fisheri R. Br. var. aristata Malte ex Polunin DUFIA Dupontia fisheri Dupontia psilosantha (Rupr.) Griseb. DUPS Durban grass Dactyloctenium australe Steud. DAAU2 durum wheat Triticum durum Desf. TRDU3 dwarf alkaligrass Puccinellia pumila (Vasey) A.S. Hitchc. PUPU3 dwarf barley Hordeum depressum (Scribn. & J.G. Sm.) Rydb. HODE2 dwarf crabgrass Digitaria serotina (Walt.) Michx. DISE3 ear muhly Muhlenbergia arenacea (Buckl.) A.S. Hitchc. MUAR eared fescue Festuca ?auriculata Drobow FEAU Earle's fescue Festuca earlei Rydb. FEEA3 early bluegrass Poa cuspidata Nutt. POCU4 early paspalum Paspalum praecox Walt. PAPR4 early sandgrass Mibora minima (L.) Desv. MIMI early water grass Echinochloa oryzoides (Ard.) Fritsch ECOR earlyleaf brome Bromus latiglumis (Shear) A.S. Hitchc. BRLA4 East Indian bristlegrass Setaria barbata (Lam.) Kunth SEBA East Indian crabgrass Digitaria setigera Roth ex Roemer & J.A. Schultes DISE6 east indian lemongrass Cymbopogon flexuosus (Nees ex Steudel) J. F. Watson CYFL2 eastern bottlebrush grass Elymus hystrix L. ELHY eastern bottlebrush grass Elymus hystrix L. var. bigeloviana (Fern.) Bowden ELHYB eastern bottlebrush grass Elymus hystrix L. var. hystrix ELHYH eastern gamagrass Tripsacum dactyloides (L.) L. TRDA3 Eastwood fescue Vulpia microstachys (Nutt.) Munro var. ciliata (Beal) Lonard & Gould VUMIC Eaton's rosette grass Dichanthelium spretum (J.A. Schultes) Freckmann DISP4 Echinochloa colona Panicum colonum L. PACO30 Echinochloa crus-galli Echinochloa crus-galli (L.) Beauv. ssp. spiralis (Vasinger) Tzvelev ECCRS Echinochloa crus-galli Panicum crus-galli L. PACR4 Echinochloa crus-pavonis var. crus-pavonis Oplismenus crus-pavonis Kunth OPCR2 Echinochloa crus-pavonis var. macera Echinochloa crus-galli (L.) Beauv. var. zelayensis (Kunth) A.S. Hitchc. ECCRZ2 Echinochloa crus-pavonis var. macera Echinochloa zelayensis (Kunth) J.A. Schultes ECZE Echinochloa esculenta Echinochloa utilis Ohwi & Yab. ECUT Echinochloa frumentacea Echinochloa crus-galli (L.) Beauv. ssp. edulis A.S. Hitchc. ECCRE2 Echinochloa frumentacea Echinochloa crus-galli (L.) Beauv. var. frumentacea (Link) W. Wight ECCRF Echinochloa frumentacea Panicum frumentaceum Roxb., non Salisb. PAFR4 Echinochloa muricata var. microstachya Echinochloa crus-galli (L.) Beauv. var. mitis (Pursh) Peterm. ECCRM2 Echinochloa muricata var. microstachya Echinochloa microstachya (Wieg.) Rydb. ECMI Echinochloa muricata var. microstachya Echinochloa muricata (Beauv.) Fern. ssp. microstachya (Wieg.) Jauzein ECMUM3 Echinochloa muricata var. microstachya Echinochloa muricata (Beauv.) Fern. var. occidentalis Wieg. ECMUO Echinochloa muricata var. microstachya Echinochloa muricata (Beauv.) Fern. var. wiegandii Fassett ECMUW Echinochloa muricata var. microstachya Echinochloa occidentalis (Wieg.) Rydb. ECOC Echinochloa muricata var. microstachya Echinochloa pungens (Poir.) Rydb. var. microstachya (Wieg.) Fern. & Grisc. ECPUM Echinochloa muricata var. microstachya Echinochloa pungens (Poir.) Rydb. var. multiflora (Wieg.) Fern. & Grisc. ECPUM2 Echinochloa muricata var. microstachya Echinochloa wiegandii (Fassett) McNeill & Dore ECWI3 Echinochloa muricata var. muricata Echinochloa muricata (Beauv.) Fern. var. ludoviciana Wieg. ECMUL Echinochloa muricata var. muricata Echinochloa pungens (Poir.) Rydb. ECPU4 Echinochloa muricata var. muricata Echinochloa pungens (Poir.) Rydb. var. coarctata Fern. & Grisc. ECPUC Echinochloa muricata var. muricata Echinochloa pungens (Poir.) Rydb. var. ludoviciana (Wieg.) Fern. & Grisc. ECPUL3 Echinochloa phyllopogon Echinochloa crus-galli (L.) Beauv. var. oryzicola (Vasinger) Ohwi ECCRO Echinochloa phyllopogon Echinochloa oryzicola (Vasinger) Vasinger ECOR2 Echinochloa phyllopogon Echinochloa oryzicola (Vasinger) Vasinger var. mutica Vasinger ECORM Echinochloa polystachya Oplismenus polystachyus Kunth OPPO4 Echinochloa pyramidalis Echinochloa holubii (Stapf) Stapf ECHO3 Echinochloa turneriana Echinochloa turnerana (Domin) J. M. Black [orthographic variant] ECTU2 Echinochloa walteri Echinochloa walteri (Pursh) Heller var. laevigata (Wieg.) S.R. Hill ECWAL Echinochloa walteri Panicum walteri Pursh PAWA3 Edwards Plateau beardgrass Bothriochloa edwardsiana (Gould) Parodi BOED Eggers's crabgrass Digitaria eggersii (Hack.) Henr. DIEG eggleaf rosette grass Dichanthelium ovale (Ell.) Gould & C.A. Clark DIOV eggleaf rosette grass Dichanthelium ovale (Ell.) Gould & C.A. Clark var. ovale DIOVO Egyptian grass Dactyloctenium aegyptium (L.) Willd. DAAE Egyptian panicgrass Paspalidium geminatum (Forssk.) Stapf PAGE2 Egyptian panicgrass Paspalidium geminatum (Forssk.) Stapf var. geminatum PAGEG Egyptian panicgrass Paspalidium geminatum (Forssk.) Stapf var. paludivagum (A.S. Hitchc. & Chase) Gould PAGEP elastic grass Eragrostis tenuifolia (A. Rich.) Hochst. ex Steud. ERTE19 elephant grass Pennisetum purpureum Schumacher PEPU2 elephant panicgrass Panicum elephantipes Nees PAEL Eleusine coracana ssp. africana Eleusine africana Kennedy & O'Byrne ELAF Eleusine coracana ssp. africana Eleusine indica (L.) Gaertn. ssp. africana (Kennedy & O'Byrne) S.M. Phillips ELINA Eleusine indica Cynosurus indicus L. CYIN7 Eleusine tristachya Cynosurus tristachyus Lam. CYTR8 Elionurus barbiculmis Elionurus barbiculmis Hack. var. parviflorus Scribn. ELBAP Elliott's bentgrass Agrostis elliottiana J.A. Schultes AGEL4 Elliott's bluestem Andropogon gyrans Ashe ANGY2 Elliott's bluestem Andropogon gyrans Ashe var. gyrans ANGYG Elliott's bluestem Andropogon gyrans Ashe var. stenophyllus (Hack.) C. Campbell ANGYS elliptic cockspur grass Echinochloa elliptica Michael & Vick. ECEL2 elongate dropseed Sporobolus elongatus R. Br. SPEL Elymus ?hansenii ?Elysitanion hansenii (Scribn.) Bowden ELHA Elymus ?hansenii Sitanion anomalum J.G. Sm. SIAN10 Elymus ?hansenii Sitanion hansenii (Scribn.) J.G. Sm. SIHA7 Elymus ?maltei Elymus ?maltei Bowden var. brownii Bowden ELMAB Elymus ?maltei Elymus ?maltei Bowden var. churchii Bowden ELMAC Elymus ?maltei Elymus ?maltei Bowden var. simulans Bowden ELMAS Elymus ?maltei Elymus arenarius L. var. simulans (Bowden) Boivin ELARS Elymus ?maltei Terrelymus maltei (Bowden) Baum TEMA3 Elymus ?mossii ?Agroelymus cayouetteorus Boivin AGCA6 Elymus ?mossii ?Agroelymus mossii Lepage AGMO Elymus ?palmerensis ?Agroelymus hodgsonii Lepage AGHO5 Elymus ?palmerensis ?Agroelymus palmerensis Lepage AGPA10 Elymus ?pinaloensis ?Agrositanion pinaloense Pyrah AGPI4 Elymus ?pseudorepens Agropyron pseudorepens Scribn. & J.G. Sm. AGPS Elymus ?pseudorepens Agropyron pseudorepens Scribn. & J.G. Sm. var. magnum Scribn. & J.G. Sm. AGPSM Elymus ?pseudorepens Agropyron pseudorepens Scribn. & J.G. Sm. var. sennii Boivin AGPSS Elymus ?pseudorepens Agropyron vaillantianum (Wulfen & Schreb.) Trautv. ex Bess. AGVA5 Elymus ?pseudorepens Elymus pseudorepens (Scribn. & J.G. Sm.) Gould ELPS2 Elymus ?saundersii ?Agrositanion saundersii (Vasey) Bowden AGSA4 Elymus ?saundersii Agropyron saundersii (Vasey) A.S. Hitchc. AGSA6 Elymus ?saundersii Elymus saundersii Vasey var. californicus Hoover ELSAC Elymus abolinii Agropyron abolinii Drobow AGAB2 Elymus agropyroides Elymus agropyroides J. Presl var. latiglume ined.? ELAGL2 Elymus alaskanus ssp. alaskanus Agropyron alaskanum Scribn. & Merr. AGAL6 Elymus alaskanus ssp. alaskanus Agropyron boreale (Turcz.) Drobow ex Polunin ssp. alaskanum (Scribn. & Merr.) Melderis AGBOA2 Elymus alaskanus ssp. alaskanus Agropyron boreale (Turcz.) Drobow ex Polunin var. alaskanum (Scribn. & Merr.) Welsh AGBOA4 Elymus alaskanus ssp. latiglumis Agropyron latiglume (Scribn. & J.G. Sm.) Rydb. AGLA3 Elymus alaskanus ssp. latiglumis Agropyron trachycaulum (Link) Malte ex H.F. Lewis var. latiglume (Scribn. & J.G. Sm.) Beetle AGTRL Elymus alaskanus ssp. latiglumis Agropyron violaceum (Hornem.) Lange AGVI3 Elymus alaskanus ssp. latiglumis Agropyron violaceum (Hornem.) Lange var. alboviride (Hult?n) Melderis AGVIA Elymus alaskanus ssp. latiglumis Elymus trachycaulus (Link) Gould ex Shinners ssp. latiglumis (Scribn. & J.G. Sm.) Barkworth & D.R. Dewey ELTRL Elymus alaskanus ssp. latiglumis Elymus trachycaulus (Link) Gould ex Shinners ssp. violaceus (Hornem.) A.& D. L?ve ELTRV Elymus alaskanus ssp. latiglumis Elymus trachycaulus (Link) Gould ex Shinners var. latiglumis (Scribn. & J.G. Sm.) Beetle ELTRL2 Elymus alaskanus ssp. latiglumis Elymus violaceus (Hornem.) B?cher ex J. Feilberg ELVI11 Elymus alaskanus ssp. latiglumis Roegneria violacea (Hornem.) Melderis ROVI4 Elymus albicans Agropyron albicans Scribn. & J.G. Sm. AGAL Elymus albicans Agropyron albicans Scribn. & J.G. Sm. var. griffithii (Scribn. & J.G. Sm. ex Piper) Beetle AGALG Elymus albicans Agropyron dasystachyum (Hook.) Scribn. & J.G. Sm. ssp. albicans (Scribn. & J.G. Sm.) D.R. Dewey AGDAA Elymus albicans Agropyron griffithii Scribn. & J.G. Sm. ex Piper [orthographic error] AGGR6 Elymus albicans Agropyron griffithsii Scribn. & J.G. Sm. ex Piper AGGR11 Elymus albicans Elymus albicans (Scribn. & J.G. Sm.) A. L?ve var. griffithii (Scribn. & J.G. Sm. ex Piper) Dorn ELALG Elymus albicans Elymus griffithii (Scribn. & J.G. Sm. ex Piper) A. L?ve ELGR3 Elymus albicans Elymus lanceolatus (Scribn. & J.G. Sm.) Gould ssp. albicans (Scribn. & J.G. Sm.) Barkworth & D.R. Dewey ELLAA Elymus albicans Elytrigia dasystachya (Hook.) A.& D. L?ve ssp. albicans (Scribn. & J.G. Sm.) D.R. Dewey ELDAA Elymus albicans Roegneria albicans (Scribn. & J.G. Sm.) Beetle ROAL4 Elymus albicans Roegneria albicans (Scribn. & J.G. Sm.) Beetle var. griffithii (Scribn. & J.G. Sm. ex Piper) Beetle ROALG Elymus arizonicus Agropyron arizonicum Scribn. & J.G. Sm. AGAR Elymus arizonicus Agropyron spicatum Pursh var. arizonicum (Scribn. & J.G. Sm.) M.E. Jones AGSPA Elymus arizonicus Elytrigia arizonica (Scribn. & J.G. Sm.) D.R. Dewey ELAR12 Elymus arizonicus Pseudoroegneria arizonica (Scribn. & Merr.) A. L?ve PSAR6 Elymus bakeri Agropyron bakeri E. Nels. AGBA2 Elymus bakeri Agropyron trachycaulum (Link) Malte ex H.F. Lewis var. bakeri (E. Nels.) Boivin AGTRB Elymus bakeri Elymus trachycaulus (Link) Gould ex Shinners ssp. bakeri (E. Nels.) A. L?ve ELTRB3 Elymus batalinii Agropyron batalinii (Krasn.) Roshev. AGBA6 Elymus breviaristatus ssp. scabrifolius Agropyron scabrifolium (Doll) Parodi AGSC9 Elymus calderi Agropyron dasystachyum (Hook.) Scribn. & J.G. Sm. ssp. yukonense auct. non (Scribn. & Merr.) D.R. Dewey [misapplied] AGDAY Elymus calderi Agropyron yukonense auct. non Scribn. & Merr. [misapplied] AGYU Elymus calderi Elymus ?yukonensis auct. non (Scribn. & Merr.) A. L?ve (pro sp.) [not hybrid] ELYU Elymus calderi Elymus lanceolatus (Scribn. & J.G. Sm.) Gould ssp. yukonensis auct. non (Scribn. & Merr.) A. L?ve [misapplied] ELLAY Elymus calderi Elytrigia dasystachya (Hook.) A.& D. L?ve ssp. yukonensis auct. non (Scribn. & Merr.) D.R. Dewey [misapplied] ELDAY Elymus californicus Hystrix californica Boland. ex Thurb. HYCA8 Elymus canadensis Elymus brachystachys Scribn. & Ball ELBR7 Elymus canadensis Elymus canadensis L. var. brachystachys (Scribn. & Ball) Farw. ELCAB2 Elymus canadensis Elymus canadensis L. var. hirsutus (Farw.) Dorn ELCAH Elymus canadensis Elymus canadensis L. var. robustus (Scribn. & J.G. Sm.) Mackenzie & Bush ELCAR3 Elymus canadensis Elymus crescendus L.C. Wheeler ELCR4 Elymus canadensis Elymus philadelphicus L. ELPH Elymus canadensis Elymus philadelphicus L. var. hirsutus Farw. ELPHH Elymus canadensis Elymus robustus Scribn. & J.G. Sm. ELRO3 Elymus caninus Agropyron caninum (L.) Beauv. AGCA2 Elymus caninus Triticum caninum L. TRCA18 Elymus ciliaris Roegneria ciliaris (Trin.) Nevski ROCI3 Elymus ciliaris ssp. ciliaris Agropyron ciliare (Trin.) Franch. AGCI2 Elymus dahuricus Elymus cylindricus (Franch.) Honda ELCY2 Elymus dahuricus ssp. excelsus Elymus excelsus Turcz. ex Griseb. ELEX2 Elymus diversiglumis Elymus interruptus auct. non Buckl. [misapplied] ELIN8 Elymus donianus Agropyron donianum F. B. White AGDO2 Elymus drobovii Agropyron drobovii Nevski AGDR2 Elymus drobovii Roegneria drobovii (Nevski) Nevski RODR2 Elymus elymoides ssp. brevifolius Elymus elymoides (Raf.) Swezey var. brevifolius (J.G. Sm.) Dorn ELELB Elymus elymoides ssp. brevifolius Elymus longifolius (J.G. Sm.) Gould ELLO3 Elymus elymoides ssp. brevifolius Sitanion hystrix (Nutt.) J.G. Sm. var. brevifolium (J.G. Sm.) C.L. Hitchc. SIHYB Elymus elymoides ssp. brevifolius Sitanion longifolium J.G. Sm. SILO7 Elymus elymoides ssp. brevifolius Sitanion velutinum Piper SIVE4 Elymus elymoides ssp. californicus Sitanion hystrix (Nutt.) J.G. Sm. var. californicum (J.G. Sm.) F.D. Wilson SIHYC Elymus elymoides ssp. elymoides Elymus sitanion J.A. Schultes ELSI8 Elymus elymoides ssp. elymoides Sitanion elymoides Raf. SIEL6 Elymus elymoides ssp. elymoides Sitanion hystrix (Nutt.) J.G. Sm. SIHY Elymus elymoides ssp. hordeoides Elymus hordeoides (Suksdorf) Barkworth & D.R. Dewey ELHO Elymus elymoides ssp. hordeoides Sitanion hordeoides Suksdorf SIHO3 Elymus elymoides ssp. hordeoides Sitanion hystrix (Nutt.) J.G. Sm. var. hordeoides (Suksdorf) C.L. Hitchc. SIHYH Elymus fibrosus ssp. fibrosus Agropyron fibrosum (Schrenk) P. Candargy AGFI4 Elymus glaucus ssp. glaucus Elymus glaucus Buckl. var. breviaristatus Burtt-Davy ELGLB Elymus glaucus ssp. jepsonii Elymus glaucus Buckl. var. jepsonii Burtt-Davy ELGLJ Elymus glaucus ssp. jepsonii Elymus glaucus Buckl. var. tenuis Vasey ELGLT Elymus glaucus ssp. virescens Elymus glaucus Buckl. var. virescens (Piper) Bowden ELGLV2 Elymus glaucus ssp. virescens Elymus virescens Piper ELVI10 Elymus gmelinii Roegneria turczaninovii (Drob.) Nevski ROTU3 Elymus hystrix var. bigeloviana Hystrix patula Moench var. bigeloviana (Fern.) Deam HYPAB Elymus hystrix var. hystrix Hystrix hystrix (L.) Millsp. HYHY2 Elymus hystrix var. hystrix Hystrix patula Moench HYPA3 Elymus interruptus Elymus canadensis L. var. interruptus (Buckl.) Church ELCAI Elymus kronokensis ssp. subalpinus Agropyron boreale (Turcz.) Drobov [excluded] AGBO8 Elymus kronokensis ssp. subalpinus Elymus alaskanus (Scribn. & Merr.) A. L?ve ssp. borealis (Turcz.) Melderis [excluded] ELALB2 Elymus kronokensis ssp. subalpinus Triticum boreale Turcz. [excluded] TRBO14 Elymus lanceolatus ssp. lanceolatus Agropyron dasystachyum (Hook.) Scribn. & J.G. Sm. AGDA Elymus lanceolatus ssp. lanceolatus Agropyron dasystachyum (Hook.) Scribn. & J.G. Sm. var. riparium (Scribn. & J.G. Sm.) Bowden AGDAR3 Elymus lanceolatus ssp. lanceolatus Agropyron dasystachyum (Hook.) Scribn. & J.G. Sm. var. riparum (Scribn. & J.G. Sm.) Bowden [orthographic error] AGDAR Elymus lanceolatus ssp. lanceolatus Agropyron elmeri Scribn. AGEL2 Elymus lanceolatus ssp. lanceolatus Agropyron lanceolatum Scribn. & J.G. Sm. AGLA4 Elymus lanceolatus ssp. lanceolatus Agropyron riparium Scribn. & J.G. Sm. AGRI5 Elymus lanceolatus ssp. lanceolatus Agropyron riparum Scribn. & J.G. Sm. [orthographic error] AGRI3 Elymus lanceolatus ssp. lanceolatus Elymus lanceolatus (Scribn. & J.G. Sm.) Gould var. riparius (Scribn. & J.G. Sm.) Dorn ELLAR Elymus lanceolatus ssp. lanceolatus Elymus subvillosus (Hook.) Gould ELSU5 Elymus lanceolatus ssp. lanceolatus Elytrigia dasystachya (Hook.) A.& D. L?ve ELDA5 Elymus lanceolatus ssp. lanceolatus Elytrigia ripara (Scribn. & J.G. Sm.) Beetle [orthographic error] ELRI3 Elymus lanceolatus ssp. lanceolatus Elytrigia riparia (Scribn. & J.G. Sm.) Beetle ELRI4 Elymus lanceolatus ssp. psammophilus Agropyron dasystachyum (Hook.) Scribn. & J.G. Sm. ssp. psammophilum (Gillett & Senn) D.R. Dewey AGDAP Elymus lanceolatus ssp. psammophilus Agropyron dasystachyum (Hook.) Scribn. & J.G. Sm. var. psammophilum (Gillett & Senn) E.G. Voss AGDAP2 Elymus lanceolatus ssp. psammophilus Agropyron psammophilum Gillett & Senn AGPS2 Elymus lanceolatus ssp. psammophilus Elytrigia dasystachya (Hook.) A.& D. L?ve ssp. psammophila (Gillett & Senn) D.R. Dewey ELDAP Elymus lanceolatus ssp. psammophilus Elytrigia dasystachya (Hook.) A.& D. L?ve var. psammophila (Gillett & Senn) Cronq. ELDAP2 Elymus longearistatus Agropyron longearistatum (Boiss.) Boiss. AGLO3 Elymus macrourus Agropyron dasystachyum (Hook.) Scribn. & J.G. Sm. var. sericeum auct. non Boivin [misapplied] AGDAS Elymus macrourus Agropyron macrourum (Turcz.) Drobow AGMA Elymus macrourus Agropyron sericeum auct. non A.S. Hitchc. [misapplied] AGSE4 Elymus macrourus Triticum macrourum Turcz. TRMA12 Elymus magellanicus Agropyron magellanicum (E. Desv.) Hack. AGMA11 Elymus magellanicus Agropyron patagonicum (Speg.) Parodi AGPA18 Elymus magellanicus Agropyron pubiflorum (Steud.) Parodi AGPU8 Elymus magellanicus Agropyron remotiflorum Parodi AGRE6 Elymus multisetus Sitanion jubatum J.G. Sm. SIJU Elymus mutabilis Agropyron mutabile Drobow AGMU2 Elymus mutabilis ssp. mutabilis Agropyron angustiglume Nevski AGAN5 Elymus mutabilis ssp. praecaespitosus Agropyron praecaespitosum Nevski AGPR4 Elymus nevskii Agropyron ugamicum Drobow AGUG2 Elymus pendulina Roegneria pendulina Nevski ROPE5 Elymus praeruptus Roegneria interrupta (Nevski) Nevski ROIN7 Elymus repens Agropyron repens (L.) Beauv. AGRE2 Elymus repens Agropyron repens (L.) Beauv. var. subulatum (Schreb.) Roemer & J.A. Schultes AGRES Elymus repens Elytrigia repens (L.) Desv. ex Nevski ELRE3 Elymus repens Elytrigia repens (L.) Desv. ex Nevski var. vaillantiana (Wulfen & Schreb.) Prokudin ELREV Elymus repens Elytrigia vaillantiana (Wulfen & Schreb.) Beetle ELVA3 Elymus repens Triticum repens L. TRRE9 Elymus repens Triticum vaillantianum Wulfen & Schreb. TRVA4 Elymus repens ssp. elongatiformis Agropyron elongatiforme Drobow AGEL6 Elymus riparius Elymus canadensis L. var. riparius (Wieg.) Boivin ELCAR2 Elymus sajanensis Agropyron boreale (Turcz.) Drobow ex Polunin ssp. hyperarcticum (Polunin) Melderis AGBOH2 Elymus sajanensis Agropyron latiglume (Scribn. & J.G. Sm.) Rydb. var. pilosiglume Hult AGLAP Elymus sajanensis Agropyron violaceum (Hornem.) Lange var. hyperarcticum Polunin AGVIH Elymus sajanensis Elymus alaskanus (Scribn. & Merr.) A. L?ve ssp. hyperarcticus (Polunin) A.& D. L?ve ELALH Elymus sajanensis Elymus hyperarcticus (Polunin) Tzvelev ELHY3 Elymus sajanensis Elymus sajanensis (Nevski) Tzvelev p.p. ELSA9 Elymus sajanensis Elymus sajanensis (Nevski) Tzvelev ssp. hyperarcticus (Polunin) Tzvelev ELSAH Elymus sajanensis Roegneria borealis (Turcz.) Nevski var. hyperarctica (Polunin) Melderis ROBOH Elymus sajanensis Roegneria hyperarctica (Polunin) Tzvelev ROHY Elymus scabriglumis Agropyron agroelymoides (Hicken) J. H. Hunz. AGAG2 Elymus scabriglumis Agropyron scabriglume (Hack.) Parodi AGSC10 Elymus scribneri Agropyron scribneri Vasey AGSC4 Elymus semicostatus Agropyron kuramense Melderis AGKU2 Elymus semicostatus Agropyron semicostatum Nees ex Steud. AGSE Elymus semicostatus Agropyron striatum (Nees ex Steud.) Hook. f. AGST7 Elymus semicostatus Elymus semicostatum (Nees ex Steud.) A. L?ve [orthographic variant] ELSE4 Elymus sierrus Agropyron gmelinii (Ledeb.) Scribn. & J.G. Sm. var. pringlei Scribn. & J.G. Sm. AGGMP Elymus sierrus Agropyron pringlei (Scribn. & J.G. Sm.) A.S. Hitchc., not Elymus pringlei Scribn. & Merr. AGPR Elymus sierrus Elymus sierrae Gould [orthographic error] ELSI4 Elymus stebbinsii ssp. stebbinsii Agropyron parishii Scribn. & J.G. Sm. AGPA7 Elymus stebbinsii ssp. stebbinsii Elytrigia parishii (Scribn. & J.G. Sm.) D.R. Dewey ELPA11 Elymus submuticus Elymus curvatus Piper ELCU2 Elymus submuticus Elymus virginicus L. var. jenkinsii Bowden ELVIJ2 Elymus submuticus Elymus virginicus L. var. submuticus Hook. ELVIS Elymus trachycaulus ssp. subsecundus Agropyron caninum (L.) Beauv. var. unilaterale (Cassidy) C.L. Hitchc. AGCAU Elymus trachycaulus ssp. subsecundus Agropyron laeve (Scribn. & J.G. Sm.) A.S. Hitchc. AGLA5 Elymus trachycaulus ssp. subsecundus Agropyron parishii Scribn. & J.G. Sm. var. laeve Scribn. & J.G. Sm. AGPAL Elymus trachycaulus ssp. subsecundus Agropyron pauciflorum (Schwein.) A.S. Hitchc. ex Silveus ssp. laeve (Scribn. & J.G. Sm.) Gould AGPAL2 Elymus trachycaulus ssp. subsecundus Agropyron pauciflorum (Schwein.) A.S. Hitchc. ex Silveus var. glaucum (Pease & Moore) Taylor AGPAG5 Elymus trachycaulus ssp. subsecundus Agropyron subsecundum (Link) A.S. Hitchc. AGSU Elymus trachycaulus ssp. subsecundus Agropyron trachycaulum (Link) Malte ex H.F. Lewis var. ciliatum (Scribn. & J.G. Sm.) Gleason AGTRC Elymus trachycaulus ssp. subsecundus Agropyron trachycaulum (Link) Malte ex H.F. Lewis var. glaucum (Pease & Moore) Malte AGTRG Elymus trachycaulus ssp. subsecundus Agropyron trachycaulum (Link) Malte ex H.F. Lewis var. unilaterale (Cassidy) Malte AGTRU Elymus trachycaulus ssp. subsecundus Elymus laevis (Scribn. & J.G. Sm.) Hoover ELLA4 Elymus trachycaulus ssp. subsecundus Elymus trachycaulus (Link) Gould ex Shinners ssp. glaucus (Pease & Moore) Cody ELTRG Elymus trachycaulus ssp. subsecundus Elymus trachycaulus (Link) Gould ex Shinners var. unilateralis (Cassidy) Beetle ELTRU Elymus trachycaulus ssp. trachycaulus Agropyron brevifolium Scribn. AGBR2 Elymus trachycaulus ssp. trachycaulus Agropyron caninum (L.) Beauv. ssp. majus (Vasey) C.L. Hitchc. AGCAM Elymus trachycaulus ssp. trachycaulus Agropyron caninum (L.) Beauv. var. andinum (Scribn. & J.G. Sm.) C.L. Hitchc. AGCAA Elymus trachycaulus ssp. trachycaulus Agropyron caninum (L.) Beauv. var. hornemannii (Koch) Pease & Moore AGCAH Elymus trachycaulus ssp. trachycaulus Agropyron caninum (L.) Beauv. var. mitchellii Welsh AGCAM2 Elymus trachycaulus ssp. trachycaulus Agropyron pauciflorum (Schwein.) A.S. Hitchc. ex Silveus AGPA15 Elymus trachycaulus ssp. trachycaulus Agropyron pauciflorum (Schwein.) A.S. Hitchc. ex Silveus ssp. majus (Vasey) Melderis AGPAM Elymus trachycaulus ssp. trachycaulus Agropyron pauciflorum (Schwein.) A.S. Hitchc. ex Silveus ssp. novae-angliae (Scribn.) Melderis AGPAN4 Elymus trachycaulus ssp. trachycaulus Agropyron pauciflorum (Schwein.) A.S. Hitchc. ex Silveus ssp. teslinense (Porsild & Senn) Melderis AGPAT Elymus trachycaulus ssp. trachycaulus Agropyron pauciflorum (Schwein.) A.S. Hitchc. ex Silveus var. novae-angliae (Scribn.) Taylor & MacBryde AGPAN5 Elymus trachycaulus ssp. trachycaulus Agropyron subsecundum (Link) A.S. Hitchc. var. andinum (Scribn. & J.G. Sm.) A.S. Hitchc. AGSUA Elymus trachycaulus ssp. trachycaulus Agropyron tenerum Vasey AGTE4 Elymus trachycaulus ssp. trachycaulus Agropyron teslinense Porsild & Senn AGTE6 Elymus trachycaulus ssp. trachycaulus Agropyron trachycaulum (Link) Malte ex H.F. Lewis AGTR Elymus trachycaulus ssp. trachycaulus Agropyron trachycaulum (Link) Malte ex H.F. Lewis var. majus (Vasey) Fern. AGTRM Elymus trachycaulus ssp. trachycaulus Agropyron trachycaulum (Link) Malte ex H.F. Lewis var. novae-angliae (Scribn.) Fern. AGTRN Elymus trachycaulus ssp. trachycaulus Agropyron violaceum (Hornem.) Lange ssp. andinum (Scribn. & J.G. Sm.) Melderis AGVIA3 Elymus trachycaulus ssp. trachycaulus Agropyron violaceum (Hornem.) Lange var. andinum Scribn. & J.G. Sm. AGVIA2 Elymus trachycaulus ssp. trachycaulus Elymus donianus (F.B. White) A.& D. L?ve ssp. virescens (Lange) A.& D. L?ve ELDOV Elymus trachycaulus ssp. trachycaulus Elymus pauciflorus (Schwein.) Gould, non Lam. ELPA12 Elymus trachycaulus ssp. trachycaulus Elymus trachycaulus (Link) Gould ex Shinners ssp. andinus (Scribn. & J.G. Sm.) A.& D. L?ve ELTRA2 Elymus trachycaulus ssp. trachycaulus Elymus trachycaulus (Link) Gould ex Shinners ssp. novae-angliae (Scribn.) Tzvelev ELTRN Elymus trachycaulus ssp. trachycaulus Elymus trachycaulus (Link) Gould ex Shinners ssp. teslinensis (Porsild & Senn) A. L?ve ELTRT2 Elymus trachycaulus ssp. trachycaulus Elymus trachycaulus (Link) Gould ex Shinners var. andinus (Scribn. & J.G. Sm.) Dorn ELTRA3 Elymus trachycaulus ssp. trachycaulus Elymus trachycaulus (Link) Gould ex Shinners var. majus (Vasey) Beetle ELTRM3 Elymus trachycaulus ssp. trachycaulus Roegneria pauciflora (Schwein.) Hyl. ROPA7 Elymus trachycaulus ssp. trachycaulus Roegneria trachycaula (Link) Nevski ROTR4 Elymus trachycaulus ssp. trachycaulus Triticum trachycaulum Link TRTR10 Elymus transhyrcanus Agropyron leptourum (Nevski) Grossh. AGLE6 Elymus tsukushiensis var. tsukushiensis Agropyron tsukushiense (Honda) Ohwi AGTS2 Elymus villosus Elymus arkansanus Scribn. & Ball ELAR13 Elymus villosus Elymus canadensis L. var. villosus (Muhl. ex Willd.) Shinners ELCAV2 Elymus villosus Elymus villosus Muhl. ex Willd. var. arkansanus (Scribn. & Ball) J. Campbell ELVIA5 Elymus villosus Terrellia villosa (Muhl. ex Willd.) Baum TEVI4 Elymus virginicus var. halophilus Elymus halophilus Bickn. ELHA5 Elymus virginicus var. virginicus Elymus australis Scribn. & Ball ELAU2 Elymus virginicus var. virginicus Elymus glabriflorus (Vasey) Scribn. & Ball ELGL3 Elymus virginicus var. virginicus Elymus glabriflorus (Vasey) Scribn. & Ball var. australis (Scribn. & Ball) J. Campbell ELGLA2 Elymus virginicus var. virginicus Elymus hirsutiglumis Scribn. ELHI5 Elymus virginicus var. virginicus Elymus jejunus (Ramaley) Rydb. ELJE Elymus virginicus var. virginicus Elymus striatus Willd. ELST5 Elymus virginicus var. virginicus Elymus virginicus L. var. australis (Scribn. & Ball) A.S. Hitchc. ELVIA3 Elymus virginicus var. virginicus Elymus virginicus L. var. glabriflorus (Vasey) Bush ELVIG Elymus virginicus var. virginicus Elymus virginicus L. var. hirsutiglumis (Scribn.) A.S. Hitchc. ELVIH2 Elymus virginicus var. virginicus Elymus virginicus L. var. intermedius (Vasey) Bush ELVII2 Elymus virginicus var. virginicus Elymus virginicus L. var. jejunus (Ramaley) Bush ELVIJ Elymus vulpinus Agropyron pseudorepens Scribn. & J.G. Sm. var. vulpinum (Rydb.) Boivin AGPSV Elymus vulpinus Agropyron vulpinum (Rydb.) A.S. Hitchc. AGVU Elymus wiegandii Elymus canadensis L. ssp. wiegandii (Fern.) A. L?ve ELCAW3 Elymus wiegandii Elymus canadensis L. var. wiegandii (Fern.) Bowden ELCAW Elytrigia ?littorea Agropyron ?acutum (DC.) Roem. & Schult. AGAC2 Elytrigia ?obtusiuscula Agropyron ?obtusiusculum Lange AGOB2 Elytrigia alatavica Agropyron alatavicum Drobow AGAL12 Elytrigia caespitosa ssp. caespitosa Agropyron caespitosum K. Koch AGCA12 Elytrigia disticha Agropyron distichum (Thunb.) P. Beauv. AGDI3 Emperor crowngrass Paspalum coryphaeum Trin. PACO80 Enneapogon cenchroides Enneapogon mollis auct. non Lehm. [misapplied] ENMO Enneapogon desvauxii Pappophorum wrightii S. Wats. PAWR4 Enneapogon nigricans Enneapogon flavescens (Lindl.) N. T. Burb. ENFL3 Enteropogon acicularis Chloris acicularis Lindl. CHAC5 Enteropogon chlorideus Chloris chloridea (J. Presl) A.S. Hitchc. CHCH2 Enteropogon chlorideus Dinebra chloridea J. Presl DICH7 Enteropogon macrostachyus Chloris macrostachya Hochst. [excluded] CHMA19 Enteropogon macrostachyus Enteropogon macrostachya (Hochst.) Munro ex Benth. [orthographic variant] ENMA6 Enteropogon macrostachyus Enteropogon simplex (Schumach.) A. Chev. ENSI3 Enteropogon monostachyos Leptochloa monostachyos (Vahl) Roem. & Schult. LEMO16 Enteropogon prieurii Chloris prieurii Kunth CHPR3 entolasia Entolasia Stapf ENTOL Eragrostis amabilis Eragrostis tenella (L.) Beauv. ex Roemer & J.A. Schultes ERTE2 Eragrostis amabilis Poa tenella L. POTE11 Eragrostis atrovirens Eragrostis chariis auct. non (J.A. Schultes) A.S. Hitchc. [misapplied] ERCH3 Eragrostis atrovirens Eragrostis nutans auct. non (Retz.) Nees ex Steud. [misapplied] ERNU8 Eragrostis chaetophylla Eragrostis setifolia Nees ERSE9 Eragrostis cilianensis Eragrostis major Host ERMA12 Eragrostis cilianensis Eragrostis megastachya (Koel.) Link ERME8 Eragrostis cilianensis Poa cilianensis All. POCI3 Eragrostis cilianensis ssp. starosselskyi Eragrostis starosselskyi Grossh. ERST11 Eragrostis ciliaris Poa ciliaris L. POCI4 Eragrostis cumingii Eragrostis brownei (Kunth ex Chapman) Nees ex Steud. ERBR Eragrostis cumingii Eragrostis simplex Scribn. ERSI7 Eragrostis curvula Eragrostis chloromelas Steud. ERCH2 Eragrostis curvula Eragrostis curvula (Schrad.) Nees var. conferta Stapf ERCUC2 Eragrostis curvula Eragrostis curvula (Schrad.) Nees var. curvula (Schrad.) Nees [superfluous autonym] ERCUC4 Eragrostis curvula Eragrostis robusta Stent ERRO9 Eragrostis cylindriflora Eragrostis horizontalis Peter ERHO16 Eragrostis elliottii Poa nitida Ell., non Lam. PONI6 Eragrostis frankii Eragrostis frankii C.A. Mey. ex Steud. var. brevipes Fassett ERFRB Eragrostis gangetica Eragrostis stenophylla auct. non Hochst. ex Miq. [misapplied] ERST7 Eragrostis glutinosa Poa glutinosa Sw. POGL13 Eragrostis grandis Eragrostis grandis Hbd. var. oligantha Hbd. ERGRO Eragrostis grandis Eragrostis grandis Hbd. var. polyantha Hbd. ERGRP Eragrostis hirsuta Eragrostis hirsuta (Michx.) Nees var. laevivaginata Fern. ERHIL Eragrostis hirsuta Poa hirsuta Michx. POHI9 Eragrostis hypnoides Poa hypnoides Lam. POHY7 Eragrostis japonica Eragrostis glomerata (Walt.) L.H. Dewey ERGL Eragrostis japonica Poa glomerata Walt. POGL11 Eragrostis leptostachya Eragrostis hosakai O. Deg. ERHO Eragrostis mexicana ssp. mexicana Eragrostis neomexicana Vasey ex L.H. Dewey ERNE Eragrostis mexicana ssp. mexicana Poa mexicana Hornem. POME7 Eragrostis mexicana ssp. virescens Eragrostis orcuttiana Vasey EROR Eragrostis mexicana ssp. virescens Eragrostis virescens J. Presl ERVI17 Eragrostis minor Eragrostis eragrostis (L.) Beauv. ERER9 Eragrostis minor Eragrostis poaeoides Beauv. ex Roemer & J.A. Schultes ERPO9 Eragrostis minor Eragrostis suaveolens Becker ex Claus ERSU80 Eragrostis obtusiflora Brizopyrum obtusiflorum Fourn. BROB2 Eragrostis paupera Eragrostis falcata sensu A.S. Hitchc., non Gaud. ex Steud. ERFA4 Eragrostis paupera Eragrostis whitneyi Fosberg ERWH Eragrostis paupera Eragrostis whitneyi Fosberg var. caumii Fosberg ERWHC Eragrostis pectinacea var. miserrima Eragrostis arida A.S. Hitchc. ERAR Eragrostis pectinacea var. miserrima Eragrostis tephrosanthos J.A. Schultes ERTE3 Eragrostis pectinacea var. pectinacea Eragrostis caroliniana auct. non (Spreng.) Scribn. [misapplied] ERCA25 Eragrostis pectinacea var. pectinacea Eragrostis diffusa Buckl. ERDI15 Eragrostis pectinacea var. pectinacea Eragrostis purshii hort. ex Schrad. ERPU14 Eragrostis pectinacea var. pectinacea Poa pectinacea Michx. POPE15 Eragrostis pectinacea var. tracyi Eragrostis tracyi A.S. Hitchc. ERTR Eragrostis pilosa Eragrostis multicaulis Steud. ERMU5 Eragrostis pilosa Eragrostis perplexa L.H. Harvey ERPE16 Eragrostis pilosa Eragrostis pilosa (L.) Beauv. var. perplexa (L.H. Harvey) S.D. Koch ERPIP Eragrostis pilosa Eragrostis pilosa (L.) P. Beauv. var. pilosa (L.) P. Beauv. [superfluous autonym] ERPIP3 Eragrostis pilosa Poa pilosa L. POPI8 Eragrostis polytricha Eragrostis floridana A.S. Hitchc. ERFL9 Eragrostis polytricha Eragrostis trichocolea auct. non Hack. & Arech. [misapplied] ERTR2 Eragrostis polytricha Eragrostis trichocolea Hack. & Arech. var. floridana (A.S. Hitchc.) Witherspoon ERTRF Eragrostis prolifera Eragrostis domingensis (Pers.) Steud. ERDO2 Eragrostis prolifera Poa prolifera Sw. POPR16 Eragrostis refracta Eragrostis acuta A.S. Hitchc. ERAC5 Eragrostis refracta Eragrostis campestris Trin. ERCA32 Eragrostis refracta Poa amabilis sensu Walt., non L. POAM16 Eragrostis refracta Poa pectinacea Michx. var. refracta (Muhl.) Chapman POPER Eragrostis refracta Poa refracta Muhl. PORE14 Eragrostis scaligera Eragrostis virginica (Zucc. ex Roemer) Steud. ERVI16 Eragrostis scaligera Poa virginica Zucc. ex Roemer POVI14 Eragrostis secundiflora ssp. oxylepis Eragrostis oxylepis (Torr.) Torr. EROX Eragrostis secundiflora ssp. secundiflora Eragrostis beyrichii J.G. Sm. [excluded] ERBE12 Eragrostis secundiflora ssp. secundiflora Eragrostis oxylepis (Torr.) Torr. var. beyrichii (J.G. Sm.) Shinners [excluded] EROXB2 Eragrostis sessilispica Acamptoclados sessilispicus (Buckl.) Nash ACSE5 Eragrostis spectabilis Eragrostis spectabilis (Pursh) Steud. var. sparsihirsuta Farw. ERSPS5 Eragrostis spectabilis Poa spectabilis Pursh POSP8 Eragrostis tef Eragrostis abyssinica (Jacq.) Link ERAB4 Eragrostis tef Poa tef Zuccagni POTE10 Eragrostis tenuifolia Poa tenuifolia A. Rich. POTE16 Eragrostis trichodes Eragrostis pilifera Scheele ERPI Eragrostis trichodes Eragrostis trichodes (Nutt.) Wood var. pilifera (Scheele) Fern. ERTRP Eragrostis trichodes Poa trichodes Nutt. POTR18 Eragrostis trichophora Eragrostis atherstonii Stapf. ERAT7 Eragrostis variabilis Eragrostis niihauensis Whitney ERNI erect brome Bromus erectus Huds. BRER3 erectleaf panicgrass Dichanthelium erectifolium (Nash) Gould & C.A. Clark DIER4 Eremochloa ciliaris Nardus ciliaris L. NACI Eremochloa ophiuroides Ischaemum ophiuroides Munro ISOP2 Eremopyrum bonaepartis Agropyron bonaepartis (Spreng.) T. Durand & Schinz AGBO7 Eremopyrum bonaepartis Agropyron squarrosum (Link) Roth AGSQ Eremopyrum orientale Agropyron orientale (L.) Roemer & J.A. Schultes AGOR2 Eremopyrum orientale Secale orientale L. SEOR8 Eremopyrum triticeum Agropyron prostratum (L. f.) Beauv. AGPR2 Eremopyrum triticeum Agropyron triticeum Gaertn. AGTR5 Eriochloa acuminata var. acuminata Eriochloa gracilis (Fourn.) A.S. Hitchc. ERGR4 Eriochloa acuminata var. acuminata Eriochloa lemmonii Vasey & Scribn. var. gracilis (Fourn.) Gould ERLEG Eriochloa acuminata var. minor Eriochloa gracilis (Fourn.) A.S. Hitchc. var. minor (Vasey) A.S. Hitchc. ERGRM Eriochloa acuminata var. minor Eriochloa punctata (L.) Desv. ex Hamilton var. minor Vasey ERPUM Eriochloa aristata Eriochloa aristata Vasey var. aristata Vasey [superfluous autonym] ERARA3 Eriochloa fatmensis Eriochloa nubica (Steud.) Thellung ERNU80 Eriochloa fatmensis Eriochloa procera auct. non (Retz.) C.E. Hubbard [misapplied] ERPR2 Eriochloa fatmensis Panicum fatmense Hochst. & Steud. PAFA7 Eriochloa meyeriana Eriochloa borumensis Hack. ERBO7 Eriochloa meyeriana Panicum meyerianum Nees PAME16 Eriochloa michauxii var. michauxii Panicum michauxii Poir. PAMI8 Eriochloa polystachya Eriochloa subglabra (Nash) A.S. Hitchc. ERSU10 Eriochloa pseudoacrotricha Eriochloa ramosa (Retz.) Kuntze var. pseudoacrotricha Stapf ex Thellung ERRAP Eriochloa punctata Milium punctatum L. MIPU15 Eriochloa sericea Paspalum sericeum Scheele PASE12 Eriochloa villosa Paspalum villosum Thunb. PAVI10 Erioneuron avenaceum Erioneuron avenaceum (Kunth) Tateoka var. grandiflorum (Vasey) Gould ERAVG Erioneuron avenaceum Erioneuron grandiflorum (Vasey) Tateoka ERGR10 Erioneuron avenaceum Tridens grandiflorus (Vasey) Woot. & Standl. TRGR9 Erioneuron nealleyi Erioneuron avenaceum (Kunth) Tateoka var. nealleyi (Vasey) Gould ERAVN Erioneuron nealleyi Tridens nealleyi (Vasey) Woot. & Standl. TRNE5 Erioneuron pilosum Tridens pilosus (Buckl.) A.S. Hitchc. TRPI6 Erioneuron pilosum Uralepis pilosa Buckl. URPI4 esparto Stipa tenacissima L. [excluded] STTE13 Ethiopian dogstooth grass Cynodon aethiopicus W.D. Clayton & Harlan CYAE2 Ethiopian wheat Triticum aethiopicum Jakubz. TRAE4 Euclasta condylotricha Andropogon condylotrichus Hochst. ex Steud. ANCO28 Eulalia aurea Eulalia fulva (R. Br.) Kunth [excluded] EUFU2 Eulaliopsis binata Ischaemum angustifolium (Trin.) Hackel ISAN2 Eurasian Junegrass Koeleria asiatica Domin KOAS Eurasian Junegrass Koeleria asiatica Domin ssp. atroviolacea (Domin) Tzvelev KOASA Eureka dunegrass Swallenia alexandrae (Swallen) S?derstrom & Decker SWAL European beachgrass Ammophila arenaria (L.) Link AMAR4 European feather grass Stipa pennata L. [excluded] STPE9 Eustachys distichophylla Chloris distichophylla Lag. CHDI Eustachys floridana Chloris floridana (Chapman) Wood CHFL7 Eustachys glauca Chloris glauca (Chapman) Wood CHGL11 Eustachys neglecta Chloris neglecta Nash CHNE10 Eustachys paspaloides ssp. caribaea Chloris capensis auct. non (Houtt.) Thellung [misapplied] CHCA13 Eustachys paspaloides ssp. caribaea Chloris caribaea Spreng. CHCA81 Eustachys paspaloides ssp. caribaea Eustachys bahiensis (Steud.) Herter EUBA13 Eustachys paspaloides ssp. caribaea Eustachys caribaea (Spreng.) Herter EUCA11 Eustachys petraea Chloris petraea Sw. CHPE8 Eustachys retusa Chloris argentina (Hack.) Lillo & Parodi CHAR10 Eustachys uliginosa Chloris uliginosa Hack. CHUL2 fall panicgrass Panicum dichotomiflorum Michx. PADI fall panicgrass Panicum dichotomiflorum Michx. var. bartowense (Scribn. & Merr.) Fern. PADIB fall panicgrass Panicum dichotomiflorum Michx. var. dichotomiflorum PADID fall panicgrass Panicum dichotomiflorum Michx. var. puritanorum Svens. PADIP fall rosette grass Dichanthelium wilcoxianum (Vasey) Freckmann DIWI5 fall witchgrass Digitaria cognata (J.A. Schultes) Pilger DICO6 false beardgrass Chrysopogon Trin. CHRYS6 false brittlegrass Dissochondrus (Hbd.) Kuntze DISSO false brome Brachypodium Beauv. BRACH3 false buffalograss Monroa squarrosa (Nutt.) Torr. MOSQ false buffalograss Monroa Torr. MONRO false grama Cathestecum erectum Vasey & Hack. CAER2 false grama Cathestecum J. Presl CATHE false mannagrass Torreyochloa Church TORRE2 false melic Schizachne Hack. SCHIZ false melic Schizachne purpurascens (Torr.) Swallen SCPU false needlegrass Ptilagrostis Griseb. PTILA false Rhodes grass Trichloris crinita (Lag.) Parodi TRCR9 false semaphoregrass Pleuropogon sabinei R. Br. PLSA false wheatgrass Eremopyrum (Ledeb.) Jaubert & Spach EREMO5 Faurie's panicgrass Panicum fauriei A.S. Hitchc. PAFA2 Faurie's panicgrass Panicum fauriei A.S. Hitchc. var. carteri (Hosaka) Davidse PAFAC Faurie's panicgrass Panicum fauriei A.S. Hitchc. var. fauriei PAFAF2 Faurie's panicgrass Panicum fauriei A.S. Hitchc. var. latius (St. John) Davidse PAFAL feather fingergrass Chloris virgata Sw. CHVI4 feather pappusgrass Enneapogon Desv. ex Beauv. ENNEA feather reed grass Calamagrostis ?acutiflora (Schrad.) Rchb. CAAC19 feathertop Pennisetum villosum R. Br. ex Fresen. PEVI2 Fendler threeawn Aristida purpurea Nutt. var. longiseta (Steud.) Vasey ARPUL Fendler's threeawn Aristida purpurea Nutt. var. fendleriana (Steud.) Vasey ARPUF Fernald's bluegrass Poa laxa Haenke ssp. fernaldiana (Nannf.) Hyl. POLAF Fernald's false mannagrass Torreyochloa pallida (Torr.) Church var. fernaldii (A.S. Hitchc.) Dore ex Koyama & Kawano TOPAF ferngrass Catapodium rigidum (L.) C.E. Hubbard ex Dony CARI2 fescue Festuca L. FESTU fescue Vulpia K.C. Gmel. VULPI Festuca airoides Festuca ovina L. var. supina (Schur) Hack. [excluded] FEOVS Festuca altaica Festuca altaica Trin. ssp. scabrella (Torr. ex Hook.) Hult FEALS Festuca altaica Festuca altaica Trin. var. scabrella (Torr. ex Hook.) Breitung FEALS2 Festuca altaica Festuca scabrella Torr. ex Hook. FESC Festuca ammobia Festuca rubra L. ssp. arenicola Alexeev FERUA4 Festuca ammobia Festuca rubra L. ssp. megastachys sensu Piper p.p., non Gaudin FERUM5 Festuca ammobia Festuca rubra L. var. megastachys auct. non (Gaudin) Hegi [misapplied] FERUM4 Festuca arizonica Festuca ovina L. var. arizonica (Vasey) Hack. ex Veal FEOVA4 Festuca arvernensis Festuca glauca Lam., non Vill. FEGL Festuca arvernensis Festuca ovina L. var. glauca (Lam.) W.D.J. Koch FEOVG Festuca beckeri Festuca ovina auct. non L. ssp. beckeri Hack. FEOVB7 Festuca beckeri ssp. polesica Festuca polesica Zapal. FEPO2 Festuca brachyphylla ssp. brachyphylla Festuca brachyphylla J.A. Schultes ex J.A. & J.H. Schultes var. brachyphylla FEBRB3 Festuca brachyphylla ssp. brachyphylla Festuca brevifolia R. Br. subvar. genuina St.-Yves FEBRG2 Festuca brachyphylla ssp. brachyphylla Festuca brevifolia R. Br., non Muhl. 3-Feb Festuca brachyphylla ssp. brachyphylla Festuca ovina auct. non L. [misapplied] FEOV2 Festuca brachyphylla ssp. brachyphylla Festuca ovina L. ssp. brevifolia (S. Wats.) Hack. p.p. FEOVB6 Festuca brachyphylla ssp. brachyphylla Festuca ovina L. var. alpina (Gaudin) W.D.J. Koch FEOVA2 Festuca brachyphylla ssp. brachyphylla Festuca ovina L. var. borealis Lange FEOVB3 Festuca brachyphylla ssp. brachyphylla Festuca ovina L. var. brachyphylla (J.A. Schultes ex J.A. & J.H. Schultes) Piper ex A.S. Hitchc. FEOVB4 Festuca brachyphylla ssp. brachyphylla Festuca ovina L. var. brevifolia S. Wats. p.p. FEOVB2 Festuca brachyphylla ssp. coloradensis Festuca brachyphylla J.A. Schultes ex J.A. & J.H. Schultes ssp. breviculmis Frederiksen FEBRB2 Festuca brachyphylla ssp. coloradensis Festuca brachyphylla J.A. Schultes ex J.A. & J.H. Schultes var. coloradensis (Frederiksen) Dorn FEBRC2 Festuca brachyphylla ssp. coloradensis Festuca ovina L. var. brevifolia auct. p.p. FEOVB5 Festuca brevipila Festuca cinerea auct. non Vill. [misapplied] FECI Festuca brevipila Festuca duriuscula auct. non L. [misapplied] FEDU Festuca brevipila Festuca duriuscula L. var. cinerea auct. non (Vill.) Krajina [misapplied] FEDUC Festuca brevipila Festuca longifolia auct. non Thuill. [misapplied] FELO Festuca brevipila Festuca ovina auct. non L. [misapplied] FEOV2 Festuca brevipila Festuca ovina L. var. duriuscula auct. non (L.) W.D.J. Koch [misapplied] FEOVD Festuca brevipila Festuca trachyphylla (Hack.) Krajina nom. illeg. FETR3 Festuca brevissima Festuca ovina L. ssp. alaskana Holmen FEOVA Festuca brevissima Festuca ovina L. var. alaskana (Holmen) Welsh FEOVA3 Festuca californica Festuca hitchcockianus Alexeev FEHI Festuca campestris Festuca altaica Trin. var. major (Vasey) Gleason FEALM Festuca campestris Festuca scabrella Torr. ex Hook. var. major Vasey FESCM Festuca dasyclada Argillochloa dasyclada (Hack. ex Beal) W.A. Weber ARDA4 Festuca drymeja Festuca drymeia Mert. & Koch [orthographic variant] FEDR3 Festuca drymeja Festuca montana M. Bieb. FEMO2 Festuca durandoi Festuca spadicea L. ssp. durandoi (Clauson) Jahand. & Maire FESPD Festuca earlei Festuca brevifolia R. Br. var. utahensis St.-Yves FEBRU Festuca elmeri Festuca elmeri Scribn. & Merr. ssp. luxurians Piper FEELL Festuca elmeri Festuca elmeri Scribn. & Merr. var. conferta (Hack. ex Beal) A.S. Hitchc. FEELC Festuca filiformis Festuca capillata Lam. FECA3 Festuca filiformis Festuca ovina L. ssp. tenuifolia (Sibth.) Peterm. FEOVT2 Festuca filiformis Festuca ovina L. var. capillata (Lam.) Alef. FEOVC Festuca filiformis Festuca ovina L. var. tenuifolia (Sibthorp) Sm. FEOVT Festuca filiformis Festuca tenuifolia Sibthorp FETE Festuca hallii Festuca altaica Trin. ssp. hallii (Vasey) Harms FEALH Festuca hallii Festuca altaica Trin. subvar. hallii (Vasey) St.-Yves FEALH3 Festuca hallii Festuca scabrella Torr. ex Hook. ssp. hallii (Vasey) W.A. Weber FESCH Festuca hallii Melica hallii Vasey MEHA5 Festuca hervieri Festuca ovina auct. non L. var. gallica (Hack.) St.-Yves ex Litard. FEOVG2 Festuca heteromalla Festuca diffusa Dumort. FEDI Festuca heteromalla Festuca diffusa Dumort. var. multiflora (Hoffmann) Aschers. & Graebn. FEDIM Festuca heteromalla Festuca fallax Thuill. FEFA Festuca heteromalla Festuca multiflora Hoffmann FEMU Festuca heteromalla Festuca rubra L. ssp. bartherei (Timb.-Lagr.) P. Fourn. FERUB2 Festuca heteromalla Festuca rubra L. ssp. falax (Thuill.) Nyman FERUF2 Festuca heteromalla Festuca rubra L. ssp. megastachys Gaudin FERUM6 Festuca heteromalla Festuca rubra L. var. grandiflora Hack. FERUG Festuca heteromalla Festuca rubra L. var. megastachys (Gaudin) Hegi FERUM7 Festuca heteromalla Festuca rubra L. var. multiflora (Hoffmann) Aschers. & Graebn. FERUM Festuca heterophylla Festuca rubra L. var. heterophylla (Lam.) Mutel FERUH Festuca idahoensis ssp. idahoensis Festuca idahoensis Elmer var. oregona (Hack. ex Beal) C.L. Hitchc. FEIDO Festuca idahoensis ssp. idahoensis Festuca ingrata (Hack. ex Beal) Rydb. FEIN Festuca idahoensis ssp. idahoensis Festuca occidentalis Hook. var. ingrata (Hack. ex Beal) Boivin FEOCI Festuca idahoensis ssp. idahoensis Festuca occidentalis Hook. var. oregona (Hack.) Boivin FEOCO2 Festuca idahoensis ssp. idahoensis Festuca ovina L. var. columbiana Beal FEOVC2 Festuca idahoensis ssp. idahoensis Festuca ovina L. var. ingrata Hack. ex Beal FEOVI Festuca idahoensis ssp. idahoensis Festuca ovina L. var. oregona Hack. ex Beal FEOVO Festuca idahoensis ssp. roemeri Festuca idahoensis Elmer var. roemeri Pavlick FEIDR Festuca idahoensis ssp. roemeri Festuca roemeri (Pavlick) Alexeev FERO Festuca minutiflora Festuca brachyphylla J.A. Schultes ex J.A. & J.H. Schultes var. endotera (St.-Yves) Litard. FEBRE Festuca minutiflora Festuca ovina L. var. minutiflora (Rydb.) J.T. Howell FEOVM Festuca novae-zelandiae Festuca ovina auct. non L. ssp. novae-zelandiae Hack. FEOVN2 Festuca occidentalis Festuca ovina L. var. polyphylla Vasey ex Beal FEOVP Festuca paradoxa Festuca nutans Biehler FENU Festuca paradoxa Festuca shortii Kunth ex Wood FESH Festuca parishii Festuca californica Vasey var. parishii (Piper) A.S. Hitchc. FECAP Festuca picturata Festuca violacea Schleich. ex Gaudin ssp. picta (Kit. ex Schult.) Brand FEVIP Festuca rivularis Festuca rubra L. var. rivularis (Boiss.) Hack. FERUR4 Festuca rubra ssp. arctica Festuca richardsonii Hook. FERI3 Festuca rubra ssp. arctica Festuca richardsonii Hook. ssp. cryophila (Krecz. & Bobr.) A.& D. L?ve FERIC Festuca rubra ssp. arctica Festuca rubra L. ssp. cryophila (Krecz. & Bobr.) Hult FERUC2 Festuca rubra ssp. arctica Festuca rubra L. ssp. richardsonii (Hook.) Hult FERUR3 Festuca rubra ssp. arctica Festuca rubra L. var. mutica Hartman FERUM2 Festuca rubra ssp. arenaria Festuca arenaria Osbeck, non Lam. FEAR5 Festuca rubra ssp. arenaria Festuca rubra L. var. arenaria (Osbeck) Fries FERUA5 Festuca rubra ssp. arenaria Festuca rubra L. var. lanuginosa Mert. & Koch FERUL Festuca rubra ssp. aucta Festuca aucta Krecz. & Bobr. FEAU2 Festuca rubra ssp. fallax Festuca nigrescens Lam. FENI Festuca rubra ssp. fallax Festuca rubra L. ssp. commutata Gaudin FERUC3 Festuca rubra ssp. fallax Festuca rubra L. var. commutata Gaudin FERUC4 Festuca rubra ssp. pruinosa Festuca densiuscula (Hack. ex Piper) Alexeev FEDE5 Festuca rubra ssp. pruinosa Festuca rubra L. ssp. densiuscula Hack. ex Piper FERUD2 Festuca rubra ssp. pruinosa Festuca rubra L. var. pruinosa Hack. FERUP4 Festuca rubra ssp. rubra Festuca prolifera (Piper) Fern. FEPR2 Festuca rubra ssp. rubra Festuca prolifera (Piper) Fern. var. lasiolepis Fern. FEPRL Festuca rubra ssp. rubra Festuca rubra L. ssp. arctica auct. non (Hack.) Govor. [misapplied] FERUA2 Festuca rubra ssp. rubra Festuca rubra L. ssp. juncea (Hack.) So? FERUJ2 Festuca rubra ssp. rubra Festuca rubra L. ssp. vulgaris (Gaudin) Hayek FERUV2 Festuca rubra ssp. rubra Festuca rubra L. var. juncea (Hack.) Richter FERUJ Festuca rubra ssp. rubra Festuca rubra L. var. prolifera (Piper) Piper FERUP Festuca rubra ssp. secunda Bromus secundus J. Presl BRSE4 Festuca rubra ssp. vallicola Festuca vallicola Rydb. FEVA Festuca rupicola Festuca sulcata (Hack.) Beck FESU6 Festuca saximontana var. purpusiana Festuca ovina L. var. purpusiana St.-Yves FEOVP2 Festuca saximontana var. saximontana Festuca brachyphylla J.A. Schultes ex J.A.& J.H. Schultes var. rydbergii (St.-Yves) Cronq. FEBRR Festuca saximontana var. saximontana Festuca ovina L. var. rydbergii St.-Yves FEOVR Festuca saximontana var. saximontana Festuca ovina L. var. saximontana (Rydb.) Gleason FEOVS2 Festuca saximontana var. saximontana Festuca saximontana Rydb. var. robertsiana Pavlick FESAR2 Festuca subverticillata Festuca obtusa Biehler FEOB Festuca valesiaca Festuca mariettana Alexeev FEMA3 Festuca valesiaca Festuca michiganica Alexeev FEMI4 Festuca valesiaca Festuca oregona Vasey FEOR Festuca valesiaca ssp. saxatilis Festuca saxatilis Schur FESA2 Festuca valesiaca ssp. valesiaca Festuca sulcata (Hack.) Beck var. valesiaca (Schleich. ex Gaudin) Domin FESUV Festuca viridula Festuca howellii Hack. ex Beal FEHO Festuca vivipara ssp. vivipara Festuca ovina L. var. vivipara L. [excluded] FEOVV2 Festuca viviparoidea ssp. viviparoidea Festuca supina auct. non Schur. [misapplied] FESU4 Festuca viviparoidea ssp. viviparoidea Festuca vivipara (L.) Sm. ssp. glabra Frederiksen FEVIG Festuca viviparoidea ssp. viviparoidea Festuca vivipara auct. non (L.) Sm. [misapplied] FEVI5 festulolium ?Festulolium Asch. & Graebner FESTU2 field brome Bromus arvensis L. BRAR5 field fescue Festuca arvernensis Auquier, Kergu?len & Markgr.-Dannenb. FEAR4 field lovegrass Eragrostis elliottii S. Wats. EREL field paspalum Paspalum laeve Michx. PALA10 fineleaf sheep fescue Festuca filiformis Pourret FEFI finestem needlegrass Nassella tenuissima (Trin.) Barkworth NATE3 finger millet Eleusine coracana (L.) Gaertn. ELCO3 finger sprangletop Leptochloa digitata (R. Br.) Domin LEDI28 fingergrass Eustachys Desv. EUSTA fire reedgrass Calamagrostis koelerioides Vasey CAKO Fisher's tundragrass Dupontia fisheri R. Br. DUFI fishscale bamboo Phyllostachys heteroclada Oliv. PHHE19 fiveminute grass Tripogon Roemer & J.A. Schultes TRIPO flaccidgrass Pennisetum flaccidum Griseb. PEFL18 flattened oatgrass Danthonia compressa Austin DACO floating mannagrass Glyceria septentrionalis A.S. Hitchc. GLSE3 Florida bluestem Andropogon floridanus Scribn. ANFL Florida cockspur grass Echinochloa paludigena Wieg. ECPA5 Florida crabgrass Digitaria floridana A.S. Hitchc. DIFL Florida dropseed Sporobolus floridanus Chapman SPFL3 Florida false beardgrass Chrysopogon pauciflorus (Chapman) Benth. ex Vasey CHPA11 Florida gamagrass Tripsacum floridanum Porter ex Vasey TRFL4 Florida little bluestem Schizachyrium rhizomatum (Swallen) Gould SCRH Florida orangegrass Ctenium floridanum (A.S. Hitchc.) A.S. Hitchc. CTFL Florida paspalum Paspalum floridanum Michx. PAFL4 Florida reimar grass Reimarochloa oligostachya (Munro ex Benth.) A.S. Hitchc. REOL Florida sandreed Calamovilfa curtissii (Vasey) Scribn. CACU Florida speargrass Piptochaetium avenacioides (Nash) Valencia & Costas PIAV2 Florida threeawn Aristida rhizomophora Swallen ARRH foldedleaf grass Diectomis fastigiata (Sw.) Beauv. DIFA2 foldedleaf grass Diectomis Kunth DIECT fonio Digitaria exilis (Kippist) Stapf [excluded] DIEX4 foothill needlegrass Nassella lepida (A.S. Hitchc.) Barkworth NALE2 foreign fountaingrass Pennisetum advena J. Wipff & Veldkamp PEAD4 forest bedgrass Ichnanthus tenuis (J. Presl) A.S. Hitchc. & Chase ICTE forest climbing bamboo Arthrostylidium sarmentosum Pilger ARSA6 forked threeawn Aristida basiramea Engelm. ex Vasey ARBA2 Fosberg's lovegrass Eragrostis fosbergii Whitney ERFO fountaingrass Pennisetum L.C. Rich. ex Pers. PENNI fourspike fingergrass Eustachys neglecta (Nash) Nash EUNE fowl bluegrass Poa palustris L. POPA2 fowl mannagrass Glyceria striata (Lam.) A.S. Hitchc. GLST foxtail Alopecurus brachystachus Bieb. ALBR12 foxtail Alopecurus L. ALOPE foxtail barley Hordeum jubatum L. HOJU foxtail barley Hordeum jubatum L. ssp. jubatum HOJUJ foxtail bristlegrass Setaria italica (L.) Beauv. SEIT foxtail muhly Muhlenbergia andina (Nutt.) A.S. Hitchc. MUAN foxtail pricklegrass Crypsis alopecuroides (Piller & Mitterp.) Schrad. CRAL2 foxtail wheatgrass ?Pseudelymus Barkworth & D.R. Dewey PSEUD23 foxtail wheatgrass ?Pseudelymus saxicola (Scribn. & J.G. Sm.) Barkworth & D.R. Dewey [Elymus elymoides ? Pseudoroegneria spicata] PSSA2 fragile oat Gaudinia Beauv. GAUDI fragile oat Gaudinia fragilis (L.) Beauv. GAFR6 fragilegrass Aegopogon tenellus (DC.) Trin. AETE Frederick's festulolium ?Festulolium fredericii Cugnac & A. Camus FEFR2 fringed brome Bromus ciliatus L. BRCI2 fringed brome Bromus ciliatus L. var. ciliatus BRCIC3 fringed brome Bromus ciliatus L. var. richardsonii (Link) Boivin BRCIR fringed centipede grass Eremochloa ciliaris (L.) Merr. ERCI10 fringed dropseed Sporobolus fimbriatus (Trin.) Nees SPFI6 fringed fescue Vulpia ciliata Dumort. VUCI fringed signalgrass Urochloa ciliatissima (Buckl.) R. Webster URCI fringed windmill grass Chloris ciliata Sw. CHCI frost grass Spodiopogon sibiricus Trin. SPSI5 galleta grass Pleuraphis Torr. PLEUR12 gamagrass Tripsacum L. TRIPS gaping grass Steinchisma hians (Ell.) Nash STHI3 gaping grass Steinchisma Raf. STEIN Garnotia stricta Garnotia acutigluma (Steud.) Ohwi GAAC Garnotia stricta Garnotia sandwicensis Hbd. GASA3 Gastridium phleoides Agrostis ventricosa auct. non Gouan [misapplied] AGVE4 Gastridium phleoides Gastridium ventricosum auct. non (Gouan) Schinz & Thellung [misapplied] GAVE3 Gattinger's panicgrass Panicum gattingeri Nash PAGA Gaudinia fragilis Avena fragilis L. AVFR Geyer's oniongrass Melica geyeri Munro ex Boland. MEGE Geyer's oniongrass Melica geyeri Munro ex Boland. var. aristulata J.T. Howell MEGEA Geyer's oniongrass Melica geyeri Munro ex Boland. var. geyeri MEGEG Geysers panicgrass Dichanthelium acuminatum (Sw.) Gould & C.A. Clark var. thermale (Boland.) Freckmann DIACT2 Ghiesbreght's panicgrass Panicum ghiesbreghtii Fourn. PAGH giant bamboo Dendrocalamus asper (Schultes f.) Backer ex Heyne DEAS giant bristlegrass Setaria magna Griseb. SEMA6 giant cane Arundinaria gigantea (Walt.) Muhl. ARGI giant cane Arundinaria gigantea (Walt.) Muhl. ssp. gigantea ARGIG giant cutgrass Zizaniopsis miliacea (Michx.) Doell & Aschers. ZIMI giant dropseed Sporobolus giganteus Nash SPGI giant fescue Schedonorus giganteus (L.) Holub SCGI giant reed Arundo donax L. ARDO4 giant reed Arundo L. ARUND4 giant ricegrass Achnatherum coronatum (Thurb.) Barkworth ACCO21 giant sandreed Calamovilfa gigantea (Nutt.) Scribn. & Merr. CAGI3 giant wildrye Leymus condensatus (J. Presl) A. L?ve LECO12 gigantochloa Gigantochloa apus (Schultes f.) Kurz ex Munro GIAP gigantochloa Gigantochloa Kurz ex Munro GIGAN gigantochloa Gigantochloa verticillata (Willd.) Munro GIVE glaucous bluegrass Poa glauca Vahl POGL glaucous bluegrass Poa glauca Vahl ssp. glauca POGLG glenwoodgrass Sacciolepis indica (L.) Chase SAIN Glyceria acutiflora Panicularia acutiflora (Torr.) Kuntze PAAC8 Glyceria arkansana Glyceria septentrionalis A.S. Hitchc. var. arkansana (Fern.) Steyermark & Kucera GLSEA Glyceria borealis Panicularia borealis Nash PABO4 Glyceria canadensis Panicularia canadensis (Michx.) Kuntze PACA21 Glyceria fluitans Festuca fluitans L. FEFL Glyceria fluitans Panicularia fluitans (L.) Kuntze PAFL7 Glyceria grandis var. grandis Glyceria maxima (Hartman) Holmb. ssp. grandis (S. Wats.) Hult GLMAG Glyceria grandis var. grandis Glyceria maxima (Hartman) Holmb. var. americana (Torr.) Boivin GLMAA Glyceria grandis var. grandis Panicularia grandis (S. Wats.) Nash PAGR4 Glyceria grandis var. komarovii Glyceria hulteniana A. L?ve GLHU Glyceria laxa Glyceria ?ottawensis Bowden GLOT2 Glyceria laxa Glyceria canadensis (Michx.) Trin. var. laxa (Scribn.) A.S. Hitchc. GLCAL Glyceria laxa Panicularia laxa Scribn. PALA31 Glyceria maxima Glyceria spectabilis Mert. & Koch GLSP2 Glyceria maxima Molinia maxima Hartman MOMA4 Glyceria melicaria Panicularia melicaria (Michx.) A.S. Hitchc. PAME6 Glyceria obtusa Panicularia obtusa (Muhl.) Kuntze PAOB2 Glyceria septentrionalis Panicularia septentrionalis (A.S. Hitchc.) Bickn. PASE11 Glyceria striata Glyceria elata (Nash ex Rydb.) M.E. Jones GLEL Glyceria striata Glyceria nervata (Willd.) Trin. GLNE2 Glyceria striata Glyceria striata (Lam.) A.S. Hitchc. ssp. stricta (Scribn.) Hult GLSTS3 Glyceria striata Glyceria striata (Lam.) A.S. Hitchc. var. stricta (Scribn.) Fern. GLSTS Glyceria striata Panicularia nervata (Willd.) Kuntze PANE5 Glyceria striata Panicularia striata (Lam.) A.S. Hitchc. PAST9 goatgrass Aegilops bicornis (Forsskal) Jaub. & Spach AEBI goatgrass Aegilops comosa Sibth. & Smith AECO goatgrass Aegilops L. AEGIL goatgrass Aegilops longissima Schweinf. & Muschl. AELO goatgrass Aegilops speltoides Tausch AESP2 goatgrass Aegilops umbellulata Zhuk. AEUM goatgrass Aegilops ventricosa Tausch AEVE golden bamboo Phyllostachys aurea Carr. ex A.& C. Rivi?re PHAU8 golden carpetgrass Axonopus aureus Beauv. AXAU golden false beardgrass Chrysopogon aciculatus (Retz.) Trin. CHAC golden oatgrass Trisetum aureum (Ten.) Ten. TRAU3 goldentop grass Lamarckia aurea (L.) Moench LAAU goldentop grass Lamarckia Moench LAMAR goosegrass Acrachne Chiov. ACRAC goosegrass Acrachne racemosa (Roemer & J.A. Schultes) Ohwi ACRA6 goosegrass Eleusine Gaertn. ELEUS gophertail lovegrass Eragrostis ciliaris (L.) R. Br. ERCI2 grain sorghum Sorghum bicolor (L.) Moench ssp. bicolor SOBIB grama Bouteloua Lag. BOUTE grand paspalum Paspalum pulchellum Kunth PAPU11 gravelbar muhly Muhlenbergia eludens C.G. Reeder MUEL gray clubawn grass Corynephorus canescens (L.) Beauv. COCA16 Great Basin brome Bromus polyanthus Scribn. ex Shear BRPO Great Basin brome Bromus polyanthus Scribn. ex Shear var. paniculatus Shear BRPOP Great Basin brome Bromus polyanthus Scribn. ex Shear var. polyanthus BRPOP2 Great Lakes wheatgrass Elymus lanceolatus (Scribn. & J.G. Sm.) Gould ssp. psammophilus (Gillett & Senn) A. L?ve ELLAP Great Smoky Mountain mannagrass Glyceria nubigena W.A. Anderson GLNU green bristlegrass Setaria viridis (L.) Beauv. SEVI4 green bristlegrass Setaria viridis (L.) Beauv. var. major (Gaudin) Pospichal SEVIM green bristlegrass Setaria viridis (L.) Beauv. var. viridis SEVIV green muhly Muhlenbergia ramulosa (Kunth) Swallen MURA4 green needlegrass Nassella viridula (Trin.) Barkworth NAVI4 green silkyscale Anthaenantia villosa (Michx.) Beauv. ANVI4 green sprangletop Leptochloa dubia (Kunth) Nees LEDU greenleaf fescue Festuca viridula Vasey FEVI greenwax golden bamboo Phyllostachys viridiglaucescens A.& C. Rivi?re PHVI15 Grisebach's bristlegrass Setaria grisebachii Fourn. SEGR6 Grisebach's tribisee Lasiacis grisebachii (Nash) A.S. Hitchc. LAGR4 grove bluegrass Poa alsodes Gray POAL3 Guadalupe fescue Festuca ligulata Swallen FELI Guadalupe ricegrass Achnatherum curvifolium (Swallen) Barkworth ACCU6 Guatemalan gamagrass Tripsacum fasciculatum Trin. ex Aschers. TRFA2 guayanilla Imperata contracta (Kunth) A.S. Hitchc. IMCO guineagrass Urochloa maxima (Jacq.) R. Webster URMA3 gulf bluestem Schizachyrium maritimum (Chapman) Nash SCMA3 gulf cockspur grass Echinochloa crus-pavonis (Kunth) J.A. Schultes ECCR2 gulf cockspur grass Echinochloa crus-pavonis (Kunth) J.A. Schultes var. crus-pavonis ECCRC2 gulf cockspur grass Echinochloa crus-pavonis (Kunth) J.A. Schultes var. macera (Wieg.) Gould ECCRM gulf cordgrass Spartina spartinae (Trin.) Merr. ex A.S. Hitchc. SPSP gulfdune paspalum Paspalum monostachyum Vasey PAMO4 gulfhairawn muhly Muhlenbergia filipes M.A. Curtis MUFI3 gummy lovegrass Eragrostis curtipedicellata Buckl. ERCU Gymnopogon chapmanianus Gymnopogon floridanus Swallen GYFL Gynerium sagittatum Saccharum sagittatum Aubl. SASA14 gyp dropseed Sporobolus nealleyi Vasey SPNE gypsum grama Bouteloua breviseta Vasey BOBR gypsum threeawn Aristida gypsophila Beetle ARGY4 Hackelochloa granularis Cenchrus granularis L. CEGR10 Hackelochloa granularis Mnesithea granularis (L.) Koning & Sosef MNGR2 Hackelochloa granularis Rytilix granularis (L.) Skeels RYGR Hainardia cylindrica Lepturus cylindricus (Willd.) Trin. LECY2 Hainardia cylindrica Monerma cylindrica (Willd.) Coss. & Durieu MOCY Hainardia cylindrica Rottboellia cylindrica Willd. ROCY hairawn muhly Muhlenbergia capillaris (Lam.) Trin. MUCA2 hairgrass Aira L. AIRA hairgrass Deschampsia Beauv. DESCH hairgrass Rostraria Trin. ROSTR hairgrass Vahlodea Fries VAHLO hairy bluestem Andropogon longiberbis Hack. ANLO2 hairy brome Bromus ramosus Huds. BRRA3 hairy crabgrass Digitaria sanguinalis (L.) Scop. DISA hairy cupgrass Eriochloa villosa (Thunb.) Kunth ERVI3 hairy grama Bouteloua hirsuta Lag. BOHI2 hairy grama Bouteloua hirsuta Lag. var. hirsuta BOHIH hairy muhly Muhlenbergia villiflora A.S. Hitchc. MUVI4 hairy muhly Muhlenbergia villiflora A.S. Hitchc. var. villosa (Swallen) C.W. Morden MUVIV hairy Orcutt grass Orcuttia pilosa Hoover ORPI hairy panicgrass Panicum hirsutum Sw. PAHI4 hairy signalgrass Urochloa villosa (Lam.) T. Q. Nguyen URVI2 hairy spinifex Spinifex hirsutus Labill. SPHI2 hairy wallaby grass Rytidosperma pilosum (R. Br.) Connor & Edgar RYPI hairy wildrye Elymus villosus Muhl. ex Willd. ELVI hairy woodland brome Bromus pubescens Muhl. ex Willd. BRPU6 hairy woollygrass Erioneuron pilosum (Buckl.) Nash ERPI5 hairyflower lovegrass Eragrostis trichophora Coss. & Dur. ERTR23 hairyleaf bristlegrass Setaria villosissima (Scribn. & Merr.) K. Schum. SEVI3 hairyseed paspalum Paspalum pubiflorum Rupr. ex Fourn. PAPU5 hairysheath lovegrass Eragrostis polytricha Nees ERPO15 Hakone grass Hakonechloa macra (Munro) Makino HAMA9 Hakone grass Hakonechloa Makino ex Honda HAKON Hakonechloa macra Phragmites macer Munro PHMA30 Hall's bentgrass Agrostis hallii Vasey AGHA2 Hall's panicgrass Panicum hallii Vasey PAHA Hall's panicgrass Panicum hallii Vasey var. filipes (Scribn.) Waller PAHAF Hall's panicgrass Panicum hallii Vasey var. hallii PAHAH hard fescue Festuca brevipila Tracey 7-Feb hard spinifex Triodia basedowii E. Pritz. TRBA9 hardgrass Sclerochloa Beauv. SCLER4 hardstem lovegrass Eragrostis atropioides Hbd. ERAT harestail grass Lagurus L. LAGUR harestail grass Lagurus ovatus L. LAOV Harford's oniongrass Melica harfordii Boland. MEHA2 Hartweg's paspalum Paspalum hartwegianum Fourn. PAHA3 Hartz's bluegrass Poa hartzii Gandog. POHA4 Hauptian alkaligrass Puccinellia distans (Jacq.) Parl. ssp. hauptiana (Trin. ex Krecz.) W.E. Hughes PUDIH Havard's panicgrass Panicum havardii Vasey PAHA2 Havard's threeawn Aristida havardii Vasey ARHA3 Hawai'i bentgrass Agrostis sandwicensis Hbd. AGSA3 Hawai'i bluegrass Poa sandvicensis (Reichart) A.S. Hitchc. POSA2 Hawai'i false bristlegrass Dissochondrus biflorus (Hbd.) Kuntze ex Hack. DIBI2 Hawai'i fescue Festuca hawaiiensis A.S. Hitchc. FEHA heath false brome Brachypodium pinnatum (L.) Beauv. BRPI hedge bamboo Bambusa multiplex (Lour.) Raeusch. ex J.A. & J.H. Schultes BAMU2 Helictotrichon bromoides Avenochloa bromoides (Gouan) Holub AVBR Helictotrichon compressum Avenochloa compressa (Heuff.) Holub AVCO Helictotrichon pratense Avenochloa pratensis (L.) Holub AVPR Helictotrichon sulcatum Avenochloa sulcata (J. Gay ex Delastre) Holub AVSU Helictotrichon versicolor Avenochloa versicolor (Vill.) Holub AVVE Heller's rosette grass Dichanthelium oligosanthes (J.A. Schultes) Gould DIOL Heller's rosette grass Dichanthelium oligosanthes (J.A. Schultes) Gould var. oligosanthes DIOLO Hemarthria altissima Manisuris altissima (Poir.) A.S. Hitchc. MAAL11 Hemarthria altissima Rottboellia altissima Poiret ROAL7 hemlock rosette grass Dichanthelium sabulorum (Lam.) Gould & C.A. Clark DISA5 hemlock rosette grass Dichanthelium sabulorum (Lam.) Gould & C.A. Clark var. patulum (Scribn. & Merr.) Gould & C.A. Clark DISAP hemlock rosette grass Dichanthelium sabulorum (Lam.) Gould & C.A. Clark var. thinium (A.S. Hitchc. & Chase) Gould & C.A. Clark DISAT hemlock rosette grass Dichanthelium sabulorum (Lam.) Gould & C.A. Clarke var. sabulorum (Lam.) Gould & C.A. Clarke [excluded] DISAS2 Henderson's bentgrass Agrostis hendersonii A.S. Hitchc. AGHE3 Henderson's needlegrass Achnatherum hendersonii (Vasey) Barkworth ACHE10 Henson's calammophila ?Calammophila don-hensonii Reznicek & E.J. Judziewicz [Ammophila breviligulata ? Calamagrostis canadensis] CADO7 Hesperostipa comata ssp. comata Hesperostipa comata J.A. Schultes ex J.A. & J.H. Schultes var. comata HECOC9 Hesperostipa comata ssp. comata Stipa comata Trin. & Rupr. STCO4 Hesperostipa comata ssp. comata Stipa comata Trin. & Rupr. ssp. intonsa Piper STCOI2 Hesperostipa comata ssp. intermedia Hesperostipa comata (Trin. & Rupr.) Barkworth var. intermedia (Scribn. & Tweedy) Dorn HECOI2 Hesperostipa comata ssp. intermedia Stipa comata Trin. & Rupr. var. falcata Boivin p.p. STCOF Hesperostipa comata ssp. intermedia Stipa comata Trin. & Rupr. var. intermedia Scribn. & Tweedy STCOI Hesperostipa comata ssp. intermedia Stipa comata Trin. & Rupr. var. suksdorfii St. John STCOS Hesperostipa curtiseta Stipa curtiseta (A.S. Hitchc.) Barkworth STCU4 Hesperostipa curtiseta Stipa spartea Trin. var. curtiseta A.S. Hitchc. STSPC2 Hesperostipa neomexicana Stipa neomexicana (Thurb. ex Coult.) Scribn. STNE2 Hesperostipa spartea Stipa spartea Trin. STSP2 Heteropogon contortus Andropogon contortus L. ANCO12 Heteropogon melanocarpus Andropogon melanocarpus Ell. ANME6 Hierochloe alpina ssp. alpina Hierochloe odorata auct. non (L.) Beauv. p.p. [misapplied] HIOD2 Hierochloe alpina ssp. alpina Savastana alpina (Sw. ex Willd.) Scribn. SAAL14 Hierochloe alpina ssp. orthantha Anthoxanthum monticola (Bigelow) Y. Schouten & Veldkamp ANMO7 Hierochloe alpina ssp. orthantha Anthoxanthum monticola (Bigelow) Y. Schouten & Veldkamp ssp. orthantha (Sorensen) G. Tucker ANMOO Hierochloe alpina ssp. orthantha Hierochloe alpina (Sw. ex Willd.) Roemer & J.A. Schultes var. orthantha (Sorensen) Hult HIALO2 Hierochloe alpina ssp. orthantha Hierochloe monticola (Bigelow) A.& D. L?ve, non Mez HIMO3 Hierochloe alpina ssp. orthantha Hierochloe orthantha Sorensen HIOR Hierochloe hirta ssp. arctica Anthoxanthum hirtum (Schrank) Y. Schouten & Veldkamp ssp. arcticum (J. Presl) G. Tucker ANHIA Hierochloe hirta ssp. arctica Hierochloe odorata (L.) Beauv. ssp. arctica (J. Presl) Tzvelev HIODA Hierochloe hirta ssp. hirta Anthoxanthum hirtum (Schrank) Y. Schouten & Veldkamp [excluded] ANHI8 Hierochloe hirta ssp. hirta Hierochloe odorata (L.) Beauv. ssp. hirta (Schrank) Tzvelev [excluded] HIODH2 Hierochloe occidentalis Anthoxanthum occidentale (Buckl.) Veldkamp ANOC5 Hierochloe occidentalis Hierochloe macrophylla Thurb. ex Boland. HIMA8 Hierochloe odorata Anthoxanthum nitens (Weber) Y. Schouten & Veldkamp ANNI3 Hierochloe odorata Hierochloe fragrans (Willd.) Roemer & J.A. Schultes HIFR Hierochloe odorata Hierochloe nashii (Bickn.) Kaczmarek HINA Hierochloe odorata Hierochloe odorata (L.) Beauv. var. fragrans (Willd.) Richter HIODF Hierochloe odorata Holcus odoratus L. HOOD Hierochloe odorata Savastana nashii Bickn. SANA2 Hierochloe odorata Savastana odorata (L.) Scribn. SAOD3 Hierochloe odorata Torresia odorata (L.) A.S. Hitchc. TOOD2 Hierochloe pauciflora Anthoxanthum arcticum Veldkamp ANAR20 Hierochloe pauciflora Savastana pauciflora (R. Br.) Scribn. & Merr. SAPA17 Hilaria belangeri var. belangeri Anthephora belangeri Steud. ANBE3 Hillegrand's reedgrass Calamagrostis hillebrandii (Munro ex Hbd.) A.S. Hitchc. CAHI Hillman's panicgrass Panicum hillmanii Chase PAHI3 hillside crowngrass Paspalum clavuliferum C. Wright PACL4 Hilo murainagrass Ischaemum byrone (Trin.) A.S. Hitchc. ISBY hilograss Paspalum conjugatum Berg. PACO14 Himalayan foothill borinda Borinda fungosa (T.P. Yi) C.M.A. Stapleton BOFU hippo grass Echinochloa stagnina (Retz.) Beauv. ECST4 hippo grass Vossia cuspidata Griff. VOCU hippo grass Vossia Wallich & Griffith VOSSI Hirst's panicgrass Dichanthelium hirstii (Swallen) Kartesz DIHI13 hoary brome Bromus subvelutinus Shear BRSU4 Holcus lanatus Nothoholcus lanatus (L.) Nash NOLA2 Holm's reedgrass Calamagrostis holmii Lange CAHO Holmberg's festulolium ?Festulolium holmbergii (Doerfler) P. Fourn. FEHO2 Homolepis glutinosa Panicum glutinosum Sw. PAGL2 Homopholis proluta Panicum prolutum F. Muell. [excluded] PAPR23 honey bluestem Schizachyrium spadiceum (Swallen) J. Wipff SCSP4 hood canarygrass Phalaris paradoxa L. PHPA5 hooded windmill grass Chloris cucullata Bisch. CHCU2 hooked bristlegrass Setaria verticillata (L.) Beauv. SEVE3 hooky grass Ancistrachne uncinulata (R. Br.) S. T. Blake ANUN4 Hoover's bentgrass Agrostis hooveri Swallen AGHO Hordelymus europaeus Elymus europaeus L. ELEU2 Hordeum arizonicum Critesion arizonicum (Covas) A. L?ve CRAR12 Hordeum brachyantherum ssp. brachyantherum Critesion brachyantherum (Nevski) Barkworth & D.R. Dewey CRBR12 Hordeum brachyantherum ssp. brachyantherum Critesion jubatum (L.) Nevski ssp. breviaristatum (Bowden) A.& D. L?ve CRJUB Hordeum brachyantherum ssp. brachyantherum Hordeum boreale Scribn. & J.G. Sm. HOBO3 Hordeum brachyantherum ssp. brachyantherum Hordeum jubatum L. ssp. breviaristatum Bowden HOJUB Hordeum brachyantherum ssp. brachyantherum Hordeum jubatum L. var. boreale (Scribn. & J.G. Sm.) Boivin HOJUB2 Hordeum brachyantherum ssp. brachyantherum Hordeum nodosum L. p.p. HONO Hordeum brachyantherum ssp. brachyantherum Hordeum nodosum L. var. boreale (Scribn. & J.G. Sm.) A.S. Hitchc. HONOB Hordeum brachyantherum ssp. californicum Critesion californicum (Covas & Stebbins) N.Jacobsen & Seberg CRCA17 Hordeum brachyantherum ssp. californicum Hordeum californicum Covas & Stebbins HOCA2 Hordeum depressum Critesion depressum (Scribn. & J.G. Sm.) A. L?ve CRDE9 Hordeum jubatum ssp. intermedium Hordeum caespitosum Scribn. ex Pammel HOCA9 Hordeum jubatum ssp. intermedium Hordeum jubatum L. var. caespitosum (Scribn. ex Pammel) A.S. Hitchc. HOJUC Hordeum jubatum ssp. jubatum Critesion jubatum (L.) Nevski CRJU2 Hordeum marinum ssp. gussonianum Critesion geniculatum (All.) A. L?ve CRGE4 Hordeum marinum ssp. gussonianum Critesion hystrix (Roth) A. L?ve CRHY2 Hordeum marinum ssp. gussonianum Critesion marinum (Huds.) A. L?ve ssp. gussonianum (Parl.) Barkworth & D.R. Dewey CRMAG Hordeum marinum ssp. gussonianum Hordeum geniculatum All. HOGE Hordeum marinum ssp. gussonianum Hordeum gussonianum Parl. HOGU Hordeum marinum ssp. gussonianum Hordeum hystrix Roth HOHY Hordeum marinum ssp. marinum Critesion marinum (Huds.) A. L?ve CRMA20 Hordeum murinum ssp. glaucum Critesion glaucum (Steud.) A. L?ve CRGL13 Hordeum murinum ssp. glaucum Critesion murinum (L.) A. L?ve ssp. glaucum (Steud.) W.A. Weber CRMUG Hordeum murinum ssp. glaucum Hordeum glaucum Steud. HOGL Hordeum murinum ssp. glaucum Hordeum stebbinsii Covas HOST Hordeum murinum ssp. leporinum Critesion murinum (L.) A. L?ve ssp. leporinum (Link) A. L?ve CRMUL Hordeum murinum ssp. leporinum Hordeum leporinum Link HOLE Hordeum murinum ssp. murinum Critesion murinum (L.) A. L?ve CRMU6 Hordeum pusillum Critesion pusillum (Nutt.) A. L?ve CRPU13 Hordeum pusillum Hordeum pusillum Nutt. var. pubens A.S. Hitchc. HOPUP Hordeum pusillum ssp. euclaston Hordeum euclaston Steud. [excluded] HOEU2 Hordeum spontaneum Hordeum spontanum K. Koch [orthographic variant] HOSP2 Hordeum vulgare Hordeum aegiceras Nees ex Royle HOAE Hordeum vulgare Hordeum distichon L. HODI2 Hordeum vulgare Hordeum hexastichon L. HOHE6 Hordeum vulgare Hordeum hexastichum L. [orthographic variant] HOHE3 Hordeum vulgare Hordeum irregulare Aberg & Wiebe HOIR Hordeum vulgare Hordeum sativum Pers. HOSA4 Hordeum vulgare Hordeum vulgare L. ssp. hexastichon (L.) Bonnier & Layens HOVUH Hordeum vulgare Hordeum vulgare L. var. trifurcatum (Schlecht.) Alef. HOVUT horsetail paspalum Paspalum fluitans (Ell.) Kunth PAFL5 Howell's alkaligrass Puccinellia howellii J.I. Davis PUHO Howell's bentgrass Agrostis howellii Scribn. AGHO2 Howell's bluegrass Poa howellii Vasey & Scribn. POHO6 Howell's reedgrass Calamagrostis howellii Vasey CAHO2 Hulten's alkaligrass Puccinellia hultenii Swallen PUHU hybrid beardgrass Bothriochloa hybrida (Gould) Gould BOHY hybrid false oat Trisetum orthochaetum A.S. Hitchc. TROR3 hybrid marram ?Ammocalamagrostis baltica (Flugge ex Schrad.) P. Fourn. AMBA8 hybrid ryegrass Lolium ?hybridum Hausskn. LOHY3 Hymenachne amplexicaulis Hymenachne acutigluma auct. non (Steud.) Gilliland [misapplied] HYAC3 hyparrhenia Hyparrhenia filipendula (Hochst.) Stapf HYFI3 Hyparrhenia hirta Andropogon hirtus L. ANHI5 Hyparrhenia pilgeriana Hyparrhenia claessensii Robyns HYCL3 Hyparrhenia rufa Trachypogon rufus Nees TRRU4 Hypogynium virgatum Andropogon virgatus Desv. ex Ham. ANVI10 icegrass Phippsia (Trin.) R. Br. PHIPP icegrass Phippsia algida (C.J. Phipps) R. Br. PHAL Ichnanthus nemorosus Panicum nemorosum Sw. PANE4 Ichnanthus pallens var. majus Panicum pallens Sw. var. majus Nees PAPAM3 Ichnanthus pallens var. pallens Ichnanthus axillaris (Nees) A.S. Hitchc. & Chase ICAX Ichnanthus pallens var. pallens Panicum pallens Sw. PAPA29 Ichnanthus tenuis Oplismenus tenuis J. Presl OPTE4 Idaho bentgrass Agrostis idahoensis Nash AGID Idaho fescue Festuca idahoensis Elmer FEID Idaho fescue Festuca idahoensis Elmer ssp. idahoensis FEIDI2 Imperata brevifolia Imperata hookeri (Rupr. ex Anderss.) Rupr. ex Hack. IMHO Imperata contracta Saccharum contractum Kunth SACO18 Imperata cylindrica Imperata arundinacea Cirillo IMAR Imperata cylindrica Lagurus cylindricus L. LACY2 Indian crabgrass Digitaria longiflora (Retz.) Pers. DILO2 Indian goosegrass Eleusine indica (L.) Gaertn. ELIN3 Indian lovegrass Eragrostis pilosa (L.) Beauv. ERPI2 Indian murainagrass Ischaemum indicum (Houtt.) Merr. ISIN3 Indian ricegrass Achnatherum hymenoides (Roemer & J.A. Schultes) Barkworth ACHY Indian sandburr Cenchrus biflorus Roxb. CEBI Indian woodoats Chasmanthium latifolium (Michx.) Yates CHLA5 Indiangrass Sorghastrum Nash SORGH Indiangrass Sorghastrum nutans (L.) Nash SONU2 inland bluegrass Poa nemoralis L. ssp. interior (Rydb.) W.A. Weber PONEI2 inland muhly Muhlenbergia glabriflora Scribn. MUGL interior alkaligrass Puccinellia interior Sorensen PUIN intermediate barley Hordeum jubatum L. ssp. intermedium Bowden HOJUI intermediate needle and thread Hesperostipa comata (Trin. & Rupr.) Barkworth ssp. intermedia (Scribn. & Tweedy) Barkworth HECOI intermediate paspalum Paspalum intermedium Munro ex Morong PAIN5 intermediate wheatgrass Thinopyrum intermedium (Host) Barkworth & D.R. Dewey THIN6 Iowa barley ?Elyhordeum iowense Pohl [Elymus villosus ? Hordeum jubatum] ELIO isachne Isachne carolinensis Ohwi ISCA5 isachne Isachne confusa Ohwi ISCO2 isachne Isachne miliacea Roth ISMI2 isachne Isachne pulchella Roth ISPU2 isachne Isachne purpurascens Glassman ISPU3 ischaemum Ischaemum chordatum (Trin.) Hack ex Warb. ISCH Ischaemum aureum Spodiopogon aureus Hook. & Arn. [excluded] SPAU4 Ischaemum fasciculatum Ischaemum arcuatum (Nees) Stapf ISAR3 Ischaemum indicum Ischaemum ciliare Retz. ISCI Ischaemum indicum Phleum indicum Houtt. PHIN29 islandthicket threeawn Aristida refracta Griseb. ARRE4 Isle-of-Pines crabgrass Digitaria simpsonii (Vasey) Fern. DISI Italian ryegrass Lolium perenne L. ssp. multiflorum (Lam.) Husnot LOPEM2 Italian timothy Phleum subulatum (Savi) Aschers. & Graebn. PHSU2 itchgrass Rottboellia cochinchinensis (Lour.) W.D. Clayton ROCO6 itchgrass Rottboellia L. f. ROTTB Iwarancusa grass Cymbopogon jwarancusa (Jones) Schultes CYJW Ixophorus unisetus Urochloa uniseta J. Presl URUN Jamaican crabgrass Digitaria horizontalis Willd. DIHO James's galleta Pleuraphis jamesii Torr. PLJA Japanese bristlegrass Setaria faberi Herrm. SEFA Japanese lovegrass Eragrostis amabilis (L.) Wight & Arn. ex Nees ERAM7 Japanese millet Echinochloa esculenta (A. Braun) H. Scholz ECES Japanese panicgrass Panicum bisulcatum Thunb. PABI80 Japanese paspalum Paspalum thunbergii Kunth ex Steud. PATH6 Japanese timber bamboo Phyllostachys bambusoides Sieb. & Zucc. PHBA80 jaraguagrass Hyparrhenia rufa (Nees) Stapf HYRU2 Jarava plumosa Achnatherum papposum (Nees) Barkworth ACPA12 Jarava plumosa Stipa papposa N?es [anomalous] STPA18 Java grass Polytrias Hack. POLYT3 Java grass Polytrias indica (Houtt.) Veldkamp POIN31 Jepson's blue wildrye Elymus glaucus Buckl. ssp. jepsonii (Burtt-Davy) Gould ELGLJ2 Job's tears Coix L. COIX Job's tears Coix lacryma-jobi L. COLA Johnsongrass Sorghum halepense (L.) Pers. SOHA jointed alkaligrass Puccinellia phryganodes (Trin.) Scribn. & Merr. ssp. geniculata (Krecz.) Tzvelev PUPHG jointed goatgrass Aegilops cylindrica Host AECY jointgrass Hemarthria R. Br. HEMAR jointtail grass Coelorachis Brongn. COELO Judd's grass Leptochloa virgata (L.) Beauv. LEVI4 Junegrass Koeleria Pers. KOELE jungle rice Echinochloa colona (L.) Link ECCO2 kakonakona Panicum xerophilum (Hbd.) A.S. Hitchc. PAXE kalamalo Eragrostis monticola (Gaud.) Hbd. ERMO kamanomano Cenchrus agrimonioides Trin. CEAG kamanomano Cenchrus agrimonioides Trin. var. agrimonioides CEAGA kamanomano Cenchrus agrimonioides Trin. var. laysanensis F. Br. CEAGL kangaroo grass Themeda Forssk. THEME kangaroo grass Themeda quadrivalvis (L.) Kuntze THQU kangaroo grass Themeda quadrivalvis (L.) Kuntze var. quadrivalvis THQUQ kangaroo grass Themeda triandra Forsk. [excluded] THTR8 Karamyschev's wheat Triticum karamyschevii Nevski TRKA3 Karroochloa curva Danthonia curva Nees DACU4 Karroochloa purpurea Danthonia purpurea (Thunb.) Beauv. ex Roemer & J.A. Schultes DAPU10 Kauai bloodgrass Isachne pallens Hbd. ISPA Kauai bluegrass Poa siphonoglossa Hack. POSI Kauai panicgrass Panicum lineale St. John PALI10 kawelu Eragrostis variabilis (Gaud.) Steud. ERVA Kay's grama Bouteloua kayi Warnock BOKA Keck's bluegrass Poa keckii Soreng POKE4 Kellogg's bluegrass Poa kelloggii Vasey POKE Kennedy's bentgrass Agrostis tandilensis (Kuntze) Parodi AGTA Kentucky bluegrass Poa pratensis L. POPR Kentucky bluegrass Poa pratensis L. ssp. alpigena (Fries ex Blytt) Hiitonen POPRA6 Kentucky bluegrass Poa pratensis L. ssp. colpodea (Fries ex Blytt) Tzvelev POPRC Kentucky bluegrass Poa pratensis L. ssp. pratensis POPRP2 Kenya burr grass Tragus heptaneuron W.D. Clayton TRHE8 Key West threeawn Aristida floridana (Chapman) Vasey ARFL kikuyugrass Pennisetum clandestinum Hochst. ex Chiov. PECL2 kikuyugrass Pennisetum incomptum Nees. in Stend. PEIN14 King's eyelashgrass Blepharidachne kingii (S. Wats.) Hack. BLKI Kleberg's bluestem Dichanthium annulatum (Forssk.) Stapf DIAN klinegrass Panicum coloratum L. PACO2 knot grass Setaria reverchonii (Vasey) Pilger ssp. firmula (A.S. Hitchc. & Chase) W.E. Fox SEREF knotgrass Paspalum distichum L. PADI6 kodomillet Paspalum scrobiculatum L. PASC6 Koeleria asiatica ssp. atroviolacea Koeleria atroviolacea Domin KOAT Koeleria asiatica ssp. atroviolacea Koeleria cairnesiana Hult KOCA2 Koeleria caudata Koeleria caudata (Link) Steud. var. algeriensis Domin KOCAA Koeleria grandis Koeleria polonica Domin KOPO2 Koeleria macrantha Koeleria albescens auct. KOAL5 Koeleria macrantha Koeleria cristata auct. p.p., non Pers. KOCR Koeleria macrantha Koeleria cristata Pers. var. longifolia Vasey ex Burtt-Davy KOCRL Koeleria macrantha Koeleria cristata Pers. var. pinetorum Abrams KOCRP Koeleria macrantha Koeleria gracilis Pers. KOGR2 Koeleria macrantha Koeleria nitida Nutt. KONI Koeleria macrantha Koeleria pyramidata auct. p.p., non (Lam.) Beauv. KOPY Koeleria macrantha Koeleria yukonensis Hult KOYU Kona panicgrass Panicum konaense Whitney & Hosaka PAKO konakona Panicum nephelophilum Gaud. PANE Koolau rosette grass Dichanthelium koolauense (St. John & Hosaka) C.A. Clark & Gould DIKO Korean lawngrass Zoysia japonica Steud. ZOJA koronivia grass Urochloa humidicola (Rendle) Morrone & Zuloaga URHU kuma bamboo grass Sasa veitchii (Carriere) Rehder SAVE11 Kunth's smallgrass Microchloa kunthii Desv. MIKU Kuroiwa grass Thuarea involuta (G. Forst.) Sm. THIN13 Kuroiwa grass Thuarea Pers. THUAR Kyasuma grass Pennisetum pedicellatum Trin. PEPE24 Kyasuma grass Pennisetum pedicellatum Trin. ssp. unispiculum Brunken PEPEU lace grass Eragrostis capillaris (L.) Nees ERCA lakeshore panicgrass Panicum lacustre A.S. Hitchc. & Ekman PALA Lamarckia aurea Cynosurus aureus L. CYAU3 lamilla Bouteloua juncea (Desv. ex Beauv.) A.S. Hitchc. BOJU Lanai panicgrass Panicum ramosius A.S. Hitchc. PARA7 land grass Panicum schinzii Hack. PASC20 lanilla Leptocoryphium lanatum (Kunth) Nees LELA7 lanilla Leptocoryphium Nees LEPTO6 lapland reedgrass Calamagrostis lapponica (Wahlenb.) Hartman CALA6 large Hawai'i lovegrass Eragrostis grandis Hbd. ERGR large knotgrass Paspalum paucispicatum Vasey PAPA13 large-spike bristlegrass Setaria macrostachya Kunth SEMA5 largeflower speargrass Poa eminens J. Presl POEM largeglume bluegrass Poa macrocalyx Trautv. & C.A. Mey. POMA2 Lasiacis divaricata Lasiacis harrisii Nash LAHA Lasiacis divaricata Panicum divaricatum L. PADI10 Lasiacis grisebachii Panicum grisebachii Nash PAGR3 Lasiacis ruscifolia Panicum ruscifolium Kunth PARU4 Lasiacis sloanei Panicum sloanei Griseb. PASL Lasiacis sorghoidea var. patentiflora Lasiacis patentiflora A.S. Hitchc. & Chase LAPA11 Lasiacis sorghoidea var. sorghoidea Lasiacis maculata (Aubl.) Urban LAMA10 Lasiacis sorghoidea var. sorghoidea Panicum sorghoideum Desv. ex Hamilton PASO3 Lasiurus scindicus Rottboellia hirsuta auct. ROHI4 Lassen County bluegrass Poa ?limosa Scribn. & Williams (pro sp.) [pratensis ? secunda] POLI13 Latin American crowngrass Paspalum convexum Humb. & Bonpl. ex Fluegg PACO15 lawngrass Garnotia Brongn. GARNO lawngrass Zoysia Willd. ZOYSI lax panicgrass Panicum laxum Sw. PALA8 leafy reedgrass Calamagrostis foliosa Kearney CAFO leafy skeletongrass Gymnopogon foliosus (Willd.) Nees GYFO Leersia hexandra Homalocenchrus hexandrus (Sw.) Kuntze HOHE4 Leersia lenticularis Homalocenchrus lenticularis (Michx.) Kuntze HOLE5 Leersia monandra Homalocenchrus monandrus (Sw.) Kuntze HOMO4 Leersia oryzoides Homalocenchrus oryzoides (L.) Pollich HOOR3 Leersia oryzoides Phalaris oryzoides L. PHOR5 Leersia virginica Homalocenchrus virginicus (Willd.) Britt. HOVI4 Leersia virginica Leersia virginica Willd. var. ovata (Poir.) Fern. LEVIO Lehmann lovegrass Eragrostis lehmanniana Nees ERLE Leiberg's bluegrass Poa leibergii Scribn. POLE Leiberg's panicum Dichanthelium leibergii (Vasey) Freckmann DILE2 Lemmon's alkaligrass Puccinellia lemmonii (Vasey) Scribn. PULE Lemmon's canarygrass Phalaris lemmonii Vasey PHLE3 Lemmon's needlegrass Achnatherum lemmonii (Vasey) Barkworth ACLE8 Lemmon's needlegrass Achnatherum lemmonii (Vasey) Barkworth var. lemmonii ACLEL lemon grass Cymbopogon citratus (DC. ex Nees) Stapf CYCI lemon grass Cymbopogon Spreng. CYMBO leporinum barley Hordeum murinum L. ssp. leporinum (Link) Arcang. HOMUL Leptochloa chloridiformis Diplachne chloridiformis Hack. DICH13 Leptochloa decipiens ssp. peacockii Diplachne peacockii Maiden & Betche DIPE10 Leptochloa dubia Chloris dubia Kunth CHDU2 Leptochloa dubia Diplachne dubia (Kunth) Scribn. DIDU Leptochloa fusca ssp. fascicularis Diplachne acuminata Nash DIAC3 Leptochloa fusca ssp. fascicularis Diplachne fascicularis (Lam.) Beauv. DIFA4 Leptochloa fusca ssp. fascicularis Diplachne maritima Bickn. DIMA10 Leptochloa fusca ssp. fascicularis Leptochloa acuminata (Nash) Mohlenbrock LEAC2 Leptochloa fusca ssp. fascicularis Leptochloa fascicularis (Lam.) Gray LEFA Leptochloa fusca ssp. fascicularis Leptochloa fascicularis (Lam.) Gray var. acuminata (Nash) Gleason LEFAA Leptochloa fusca ssp. fascicularis Leptochloa fascicularis (Lam.) Gray var. maritima (Bickn.) Gleason LEFAM Leptochloa fusca ssp. fascicularis Leptochloa fusca (L.) Kunth var. fascicularis (Lam.) Dorn LEFUF2 Leptochloa fusca ssp. uninervia Diplachne uninervia (J. Presl) Parodi DIUN5 Leptochloa fusca ssp. uninervia Leptochloa uninervia (J. Presl) A.S. Hitchc. & Chase LEUN2 Leptochloa fusca ssp. uninervia Megastachya uninervia J. Presl MEUN4 Leptochloa panicea ssp. brachiata Festuca filiformis Lam. FEFI2 Leptochloa panicea ssp. brachiata Leptochloa brachiata Steudl. LEBR17 Leptochloa panicea ssp. brachiata Leptochloa filiformis (Lam.) Beauv. LEFI Leptochloa panicea ssp. brachiata Leptochloa filiformis (Lam.) Beauv. var. pulchella (Scribn.) Beetle LEFIP Leptochloa panicea ssp. mucronata Leptochloa attenuata (Nutt.) Steud. LEAT Leptochloa panicea ssp. mucronata Leptochloa filiformis (Lam.) Beauv. var. attenuata (Nutt.) Steyermark & Kucera LEFIA Leptochloa panicea ssp. mucronata Leptochloa mucronata (Michx.) Kunth LEMU10 Leptochloa panicoides Diplachne halei Nash DIHA4 Leptochloa panicoides Diplachne panicoides (J. Presl) McNeill DIPA13 Leptochloa panicoides Leptochloa floribunda Doell LEFL6 Leptochloa panicoides Megastachya panicoides J. Presl MEPA12 Leptochloa virgata Cynosurus virgatus L. CYVI12 Leptochloa virgata Leptochloa domingensis (Jacq.) Trin. LEDO4 Leptochloa viscida Diplachne viscida Scribn. DIVI9 Leptochloopsis virgata Uniola virgata (Poir.) Griseb. UNVI2 Leptocoryphium lanatum Paspalum lanatum Kunth PALA25 Lepturus filiformis Parapholis filiformis (Roth) C.E. Hubbard [excluded] PAFI13 Lepturus repens Lepturus cinereus Burcham LECI3 Lepturus repens Lepturus repens (G. Forst.) R. Br. var. cinereus (Burcham) Fosberg LEREC Lepturus repens Lepturus repens (G. Forst.) R. Br. var. occidentalis Fosberg LEREO Lepturus repens Lepturus repens (G. Forst.) R. Br. var. subulatus Fosberg LERES Lepturus repens Rottboellia repens G. Forst. RORE5 Letterman's bluegrass Poa lettermanii Vasey POLE3 Letterman's needlegrass Achnatherum lettermanii (Vasey) Barkworth ACLE9 Leucopoa kingii Festuca confinis Vasey FECO5 Leucopoa kingii Festuca kingii (S. Wats.) Cassidy FEKI2 Leucopoa kingii Hesperochloa kingii (S. Wats.) Rydb. HEKI Leucopoa kingii Poa kingii S. Wats. POKI Leymus ?multiflorus Elymus triticoides Buckl. ssp. multiflorus Gould ELTRM2 Leymus ?multiflorus Leymus triticoides (Buckl.) Pilger ssp. multiflorus (Gould) A. L?ve LETRM Leymus ?vancouverensis Elymus ?vancouverensis Vasey var. californicus Bowden ELVAC Leymus ?vancouverensis Elymus ?vancouverensis Vasey var. crescentianus Bowden ELVAC3 Leymus ?vancouverensis Elymus vancouverensis Vasey ELVA Leymus ajanensis Asperella ajanensis V. Vassil. ASAJ Leymus ajanensis Elymus interior Hult ELIN9 Leymus akmolinensis Elymus akmolinensis Drobow ELAK2 Leymus alaicus ssp. karataviensis Elymus karataviensis Roshev. ELKA2 Leymus ambiguus Elymus ambiguus Vasey & Scribn. ELAM2 Leymus ambiguus Elymus villiflorus Rydb. ELVI5 Leymus ambiguus Leymus innovatus (Beal) Pilger ssp. ambiguus (Vasey & Scribn.) A. L?ve LEINA Leymus arenarius Elymus arenarius L. ELAR Leymus cinereus Aneurolepidium piperi (Bowden) Baum ANPI6 Leymus cinereus Elymus cinereus Scribn. & Merr. ELCI2 Leymus cinereus Elymus cinereus Scribn. & Merr. var. pubens (Piper) C.L. Hitchc. ELCIP Leymus cinereus Elymus condensatus J. Presl var. pubens Piper ELCOP Leymus cinereus Elymus piperi Bowden ELPI2 Leymus condensatus Aneurolepidium condensatum (J. Presl) Nevski ANCO14 Leymus condensatus Elymus condensatus J. Presl ELCO4 Leymus erianthus Elymus erianthus Phil. ELER3 Leymus flavescens Elymus arenicola Scribn. & J.G. Sm. ELAR2 Leymus flavescens Elymus flavescens Scribn. & J.G. Sm. ELFL2 Leymus flavescens Leymus arenicola (Scribn. & J.G. Sm.) Pilger LEAR9 Leymus innovatus Elymus brownii Scribn. & J.G. Sm. ELBR8 Leymus innovatus Elymus innovatus Beal ELIN4 Leymus innovatus Elymus innovatus Beal var. glabratus Bowden ELING Leymus innovatus Elymus innovatus Beal var. velutinus Bowden ELINV Leymus innovatus Leymus velutinus (Bowden) A.& D. L?ve LEVE4 Leymus mollis ssp. mollis Elymus arenarius L. ssp. mollis (Trin.) Hult ELARM Leymus mollis ssp. mollis Elymus arenarius L. var. scabrinervis (Bowden) Boivin ELARS2 Leymus mollis ssp. mollis Elymus arenarius L. var. villosus E. Mey. ELARV4 Leymus mollis ssp. mollis Elymus capitatus Scribn. ELCA12 Leymus mollis ssp. mollis Elymus mollis Trin. ELMO9 Leymus mollis ssp. mollis Leymus arenarius (L.) Hochst. ssp. mollis (Trin.) Tzvelev LEARM Leymus mollis ssp. villosissimus Elymus arenarius L. ssp. villosissimus (Scribn.) Hult ELARV2 Leymus mollis ssp. villosissimus Elymus arenarius L. var. villosissimus (Scribn.) Polunin ELARV Leymus mollis ssp. villosissimus Elymus mollis Trin. ssp. villosissimus (Scribn.) A. L?ve ELMOV Leymus mollis ssp. villosissimus Elymus mollis Trin. var. brevispicus Scribn. & J.G. Sm. ELMOB2 Leymus mollis ssp. villosissimus Elymus villosissimus Scribn. ELVI6 Leymus mollis ssp. villosissimus Leymus villosissimus (Scribn.) Tzvelev LEVI13 Leymus multicaulis Elymus aralensis Regel ELAR11 Leymus multicaulis Elymus multicaulis Kar. & Kir. ELMU5 Leymus paboanus Elymus paboanus Claus ELPA13 Leymus pacificus Agropyron arenicola Burtt-Davy, non Leymus arenicola (Scribn. & J.G. Sm.) Pilger AGAR6 Leymus pacificus Elymus pacificus Gould ELPA7 Leymus pacificus Elymus triticoides Buckl. var. pacificus (Gould) Bowden ELTRP2 Leymus racemosus Elymus arenarius L. var. giganteus (Vahl) Schmalh. ELARG Leymus racemosus Elymus giganteus Vahl ELGI Leymus racemosus Elymus racemosus Lam. ELRA4 Leymus racemosus Leymus giganteus (Vahl) Pilger LEGI3 Leymus racemosus ssp. sabulosus Elymus sabulosus Bieb. [excluded] ELSA5 Leymus salinus ssp. salinus Elymus ambiguus Vasey & Scribn. var. salinus (M.E. Jones) C.L. Hitchc. ELAMS3 Leymus salinus ssp. salinus Elymus ambiguus Vasey & Scribn. var. strigosus (Rydb.) A.S. Hitchc. ELAMS Leymus salinus ssp. salinus Elymus salinus M.E. Jones ELSA Leymus salinus ssp. salinus Elymus strigosus Rydb. ELST7 Leymus salinus ssp. salmonis Elymus ambiguus Vasey & Scribn. var. salmonis C.L. Hitchc. ELAMS2 Leymus secalinus ssp. secalinus Elymus dasystachys Trin. [excluded] ELDA8 Leymus simplex Elymus simplex Scribn. & Williams ELSI2 Leymus simplex Elymus simplex Scribn. & Williams var. luxurians Scribn. & Williams ELSIL Leymus simplex Elymus triticoides Buckl. ssp. simplex (Scribn. & Williams) A. L?ve ELTRS4 Leymus simplex Elymus triticoides Buckl. var. simplex (Scribn. & Williams) A.S. Hitchc. ELTRS5 Leymus simplex Leymus simplex (Scribn. & Williams) D.R. Dewey var. luxurians (Scribn. & Williams) Beetle LESIL Leymus triticoides Elymus condensatus J. Presl var. triticoides (Buckl.) Thurb. ELCOT Leymus triticoides Elymus orcuttianus Vasey ELOR2 Leymus triticoides Elymus triticoides Buckl. ELTR3 Leymus triticoides Elymus triticoides Buckl. var. pubescens A.S. Hitchc. ELTRP Liebmann's bristlegrass Setaria liebmannii Fourn. SELI3 limestone grass Leptochloopsis virgata (Poir.) Yates LEVI10 limestone grass Leptochloopsis Yates LEPTO5 limestone pappusgrass Pappophorum pappiferum (Lam.) Kuntze PAPA7 Limnodea arkansana Cinna arkansana (Nutt.) G. Tucker CIAR10 limp mannagrass Glyceria laxa (Scribn.) Scribn. GLLA limpograss Hemarthria altissima (Poir.) Stapf & C.E. Hubbard HEAL5 Lindheimer panicgrass Dichanthelium acuminatum (Sw.) Gould & C.A. Clark var. lindheimeri (Nash) Gould & C.A. Clark DIACL Lindheimer's muhly Muhlenbergia lindheimeri A.S. Hitchc. MULI Lithachne pauciflora Olyra pauciflora Sw. OLPA little barley Hordeum pusillum Nutt. HOPU little bluestem Schizachyrium Nees SCHIZ4 little bluestem Schizachyrium scoparium (Michx.) Nash SCSC little bluestem Schizachyrium scoparium (Michx.) Nash var. divergens (Hack.) Gould SCSCD little bluestem Schizachyrium scoparium (Michx.) Nash var. scoparium SCSCS little lovegrass Eragrostis minor Host ERMI5 little millet Panicum sumatrense Roth ex Roemer & Schultes PASU34 little mountain bluegrass Poa curtifolia Scribn. POCU2 little oniongrass Melica fugax Boland. MEFU little Parish's needlegrass Achnatherum parishii (Vasey) Barkworth var. depauperatum (M.E. Jones) Barkworth ACPAD little quakinggrass Briza minor L. BRMI2 little ricegrass Piptatherum exiguum (Thurb.) Dorn PIEX3 littleawn needlegrass Achnatherum lobatum (Swallen) Barkworth ACLO7 littleseed canarygrass Phalaris minor Retz. PHMI3 littleseed muhly Muhlenbergia microsperma (DC.) Trin. MUMI littleseed ricegrass Piptatherum micranthum (Trin. & Rupr.) Barkworth PIMI7 Loliolum subulatum Agropyron subulatum (Banks & Sol.) Roem. & Schult. AGSU3 Lolium perenne ssp. multiflorum Lolium multiflorum Lam. LOMU Lolium perenne ssp. multiflorum Lolium multiflorum Lam. ssp. italicum (A. Braun) Volk. ex Schinz & R. Keller LOMUI Lolium perenne ssp. multiflorum Lolium multiflorum Lam. var. diminutum Mutel LOMUD Lolium perenne ssp. multiflorum Lolium multiflorum Lam. var. muticum DC. LOMUM Lolium perenne ssp. multiflorum Lolium perenne L. ssp. italicum (A. Braun) Husnot LOPEI Lolium perenne ssp. multiflorum Lolium perenne L. var. aristatum Willd. LOPEA Lolium perenne ssp. multiflorum Lolium perenne L. var. multiflorum (Lam.) Parnell LOPEM Lolium perenne ssp. perenne Lolium multiflorum Lam. var. ramosum Guss. ex Arcang. LOMUR Lolium perenne ssp. perenne Lolium perenne L. var. cristatum Pers. ex B.D. Jackson LOPEC Lolium persicum Lolium dorei Boivin LODO4 Lolium persicum Lolium dorei Boivin var. laeve Boivin LODOL Lolium rigidum Lolium loliaceum (Bory & Chaubard) Hand.-Maz. LOLO2 Lolium rigidum Lolium perenne L. ssp. rigidum (Gaudin) A.& D. L?ve LOPER Lolium rigidum Lolium rigidum Gaudin ssp. lepturoides (Boiss.) Sennen & Mauricio LORIL Lolium rigidum Lolium strictum auct. non J. Presl [misapplied] LOST Lolium rigidum Lolium subulatum Vis. LOSU Lolium temulentum ssp. temulentum Lolium arvense With. LOAR6 Lolium temulentum ssp. temulentum Lolium temulentum L. var. arvense (With.) Lilja LOTEA Lolium temulentum ssp. temulentum Lolium temulentum L. var. leptochaeton A. Braun LOTEL Lolium temulentum ssp. temulentum Lolium temulentum L. var. macrochaeton A. Braun LOTEM long lovegrass Eragrostis elongata (Willd.) Jacq. f. EREL2 longawn muhly Muhlenbergia spiciformis Trin. MUSP4 longflower bamboo Bambusa longifolia (Fourn.) McClure BALO3 longflowered veldtgrass Ehrharta longiflora Sm. EHLO3 longleaf crabgrass Digitaria gracillima (Scribn.) Fern. DIGR longleaf cupgrass Eriochloa michauxii (Poir.) A.S. Hitchc. ERMI3 longleaf cupgrass Eriochloa michauxii (Poir.) A.S. Hitchc. var. michauxii ERMIM longleaf curly-mesquite Hilaria belangeri (Steud.) Nash var. longifolia (Vasey) A.S. Hitchc. HIBEL longleaf threeawn Aristida palustris (Chapman) Vasey ARPA26 longleaf wedgescale Sphenopholis filiformis (Chapman) Scribn. SPFI longleaf woodoats Chasmanthium sessiliflorum (Poir.) Yates CHSE2 longsheath panicgrass Panicum longivaginatum St. John PALO19 longspike beardgrass Bothriochloa longipaniculata (Gould) Allred & Gould BOLO longspike tridens Tridens strictus (Nutt.) Nash TRST2 longstamen rice Oryza longistaminata A. Chev. & Roehr. ORLO3 longtom Paspalum denticulatum Trin. PADE24 longtongue muhly Muhlenbergia longiligula A.S. Hitchc. MULO loose silkybent Apera spica-venti (L.) Beauv. APSP looseflower bluegrass Poa laxiflora Buckl. POLA3 lopsided Indiangrass Sorghastrum secundum (Ell.) Nash SOSE5 lopsided oat Avena strigosa Schreb. AVST2 Lorent's goatgrass Aegilops lorentii Hochst. AELO2 Louisiana cupgrass Eriochloa punctata (L.) Desv. ex Hamilton ERPU4 lovegrass Eragrostis von Wolf ERAGR lovegrass tridens Tridens eragrostoides (Vasey & Scribn.) Nash TRER low woollygrass Dasyochloa pulchella (Kunth) Willd. ex Rydb. DAPU7 Luziola bahiensis Luziola alabamensis Chapman LUAL17 Luziola fluitans Hydrochloa caroliniensis Beauv. HYCA2 Lycurus setosus Pleopogon setosus Nutt. PLSE3 lygeum Lygeum Loefl. ex L. LYGEU lygeum Lygeum spartum Loefl. ex L. LYSP3 MacKenzie Valley mannagrass Glyceria pulchella (Nash) K. Schum. GLPU2 Macoun's barley ?Elyhordeum macounii (Vasey) Barkworth & D.R. Dewey [Elymus trachycaulus ? Hordeum jubatum] ELMA8 Macoun's reedgrass Calamagrostis canadensis (Michx.) Beauv. var. macouniana (Vasey) Stebbins CACAM Madagascar crabgrass Digitaria milanjiana (Rendle) Stapf DIMI3 Madagascar dropseed Sporobolus pyramidatus (Lam.) A.S. Hitchc. SPPY2 Madagascar grass Neyraudia arundinacea (L.) Henr. [excluded] NEAR Magennis's dogstooth grass Cynodon magennisii Hurcombe (pro hybr.) CYMA2 maidencane Amphicarpum Kunth AMPHI2 maidencane Panicum hemitomon J.A. Schultes PAHE2 maize Zea mays L. ssp. parviglumis Iltis & Doebley var. huehuetenangensis Iltis & Doebley ZEMAH Makino bamboo Phyllostachys makinoi Hayata PHMA23 Malabar sprangletop Leptochloa fusca (L.) Kunth LEFU21 male bamboo Dendrocalamus strictus (Roxb.) Nees DEST4 mammoth wildrye Leymus racemosus (Lam.) Tzvelev LERA5 mammoth wildrye Leymus racemosus (Lam.) Tzvelev ssp. racemosus LERAR2 mammoth wildrye Leymus racemosus (Lam.) Tzvelev ssp. sabulosus (Bieb.) Tzvelev [excluded] LERAS mamoncillo Aeluropus lagopoides (L.) Thwaites AELA2 Manchurian wildrice Zizania latifolia (Griseb.) Turcz. ex Stapf ZILA3 Mandan ricegrass ?Achnella caduca (Beal) Barkworth [Achnatherum hymenoides ? Nassella viridula] ACCA32 mango brome Bromus mango Desv. BRMA8 Manila grass Zoysia matrella (L.) Merr. ZOMA2 Manila grass Zoysia matrella (L.) Merr. var. matrella ZOMAM Manila grass Zoysia matrella (L.) Merr. var. pacifica Gouds. ZOMAP mannagrass Glyceria R. Br. GLYCE manystem wildrye Leymus multicaulis (Kar. & Kir.) Tzvelev LEMU11 marsh bluegrass Poa leptocoma Trin. POLE2 marsh bristlegrass Setaria parviflora (Poir.) Kergu?len SEPA10 marsh grass Hymenachne Beauv. HYMEN8 marsh muhly Muhlenbergia racemosa (Michx.) B.S.P. MURA Marsh's bluegrass Poa abbreviata R. Br. ssp. marshii Soreng POABM marshland muhly Muhlenbergia sinuosa Swallen MUSI Mascarene grass Zoysia tenuifolia Willd. ex Thiele ZOTE mat muhly Muhlenbergia richardsonis (Trin.) Rydb. MURI mat sandbur Cenchrus longispinus (Hack.) Fern. CELO3 mat-grass fescue Vulpia unilateralis (L.) Stace VUUN matgrass Nardus L. NARDU matgrass Nardus stricta L. NAST3 matojillo bluestem Andropogon leucostachyus Kunth ANLE matted grama Bouteloua simplex Lag. BOSI2 matted paspalum Paspalum minus Fourn. PAMI4 matting rosette grass Dichanthelium meridionale (Ashe) Freckmann DIME2 Maui lovegrass Eragrostis mauiensis A.S. Hitchc. ERMA Maui panicgrass Panicum pellitum Trin. PAPE3 Maui reedgrass Calamagrostis expansa (Munro ex Hbd.) A.S. Hitchc. CAEX Maui rosette grass Dichanthelium isachnoides (Munro ex Hbd.) C.A. Clark & Gould DIIS2 Mauritanian grass Ampelodesmos Link AMPEL2 Mauritanian grass Ampelodesmos mauritanicus (Poir.) T. Dur. & Schinz AMMA5 Mauritian grass Apluda L. APLUD Mauritian grass Apluda mutica L. APMU2 meadow barley Hordeum brachyantherum Nevski HOBR2 meadow barley Hordeum brachyantherum Nevski ssp. brachyantherum HOBRB2 meadow brome Bromus biebersteinii Roemer & J.A. Schultes [excluded] BRBI2 meadow brome Bromus riparius Rehmann BRRI7 meadow fescue Schedonorus pratensis (Huds.) Beauv. SCPR4 meadow foxtail Alopecurus pratensis L. ALPR3 medio bluestem Dichanthium annulatum (Forsskal) Stapf var. papillosum (A. Rich.) de Wet & Harlan DIANP Mediterranean barley Hordeum marinum Huds. ssp. gussonianum (Parl.) Thellung HOMAG Mediterranean brome Bromus lanceolatus Roth BRLA7 Mediterranean grass Schismus Beauv. SCHIS Mediterranean hairgrass Rostraria cristata (L.) Tzvelev ROCR3 Mediterranean lovegrass Eragrostis barrelieri Daveau ERBA2 Mediterranean rabbitsfoot grass Polypogon maritimus Willd. POMA10 medusahead Taeniatherum caput-medusae (L.) Nevski TACA8 medusahead Taeniatherum Nevski TAENI2 melic mannagrass Glyceria melicaria (Michx.) F.T. Hubbard GLME2 Melica bulbosa Bromelica bulbosa (Geyer ex Porter & Coult.) W.A. Weber BRBU Melica bulbosa Melica bella Piper MEBE3 Melica bulbosa Melica bella Piper ssp. intonsa Piper MEBEI Melica bulbosa Melica bulbosa Geyer ex Porter & Coult. var. inflata (Boland.) Boyle MEBUI Melica bulbosa Melica bulbosa Geyer ex Porter & Coult. var. intonsa (Piper) M.E. Peck MEBUI2 Melica bulbosa Melica inflata (Boland.) Vasey MEIN Melica ciliata ssp. ciliata Melica ciliata L. ssp. glauca (F. W. Schultz) P. Fourn. MECIG Melica ciliata ssp. ciliata Melica ciliata L. ssp. nebrodensis (Parl.) P. Fourn. MECIN Melica fugax Melica fugax Boland. ssp. madophylla Piper MEFUM Melica fugax Melica fugax Boland. var. inexpansa Suksdorf MEFUI Melica fugax Melica fugax Boland. var. macbridei (Rowland ex A. Nels.) Beetle MEFUM2 Melica harfordii Melica harfordii Boland. var. minor Vasey MEHAM Melica imperfecta Melica imperfecta Trin. var. flexuosa Boland. MEIMF Melica imperfecta Melica imperfecta Trin. var. minor Scribn. MEIMM Melica imperfecta Melica imperfecta Trin. var. refracta Thurb. MEIMR Melica smithii Avena smithii Porter ex Gray AVSM Melica smithii Bromelica smithii (Porter ex Gray) Farw. BRSM Melica spectabilis Bromelica spectabilis (Scribn.) W.A. Weber BRSP2 Melica spectabilis Melica bulbosa Geyer ex Porter & Coult. var. spectabilis (Scribn.) Boivin MEBUS Melica subulata var. subulata Bromelica subulata (Griseb.) Farw. BRSU16 melicgrass Melica L. MELIC Melinis minutiflora Melinis tenuinervis Stapf METE10 Melinis nerviglumis Rhynchelytrum rhodesianum (Rendle) Stapf & C. E. Hubb. RHRH3 Melinis repens Rhynchelytrum repens (Willd.) C.E. Hubbard RHRE2 Melinis repens Rhynchelytrum roseum (Nees) Stapf & C.E. Hubbard ex Bews RHRO2 Melinis repens Saccharum repens Willd. SARE13 Melinis repens Tricholaena repens (Willd.) A.S. Hitchc. TRRE8 Melinis repens Tricholaena rosea Nees TRRO7 Memphisgrass Cutandia memphitica (Spreng.) K. Richt. CUME2 Memphisgrass Cutandia Willk. CUTAN Merxmuellera stricta Danthonia stricta Schrad. DAST2 mesa dropseed Sporobolus flexuosus (Thurb. ex Vasey) Rydb. SPFL2 Mexicali muhly Muhlenbergia crispiseta A.S. Hitchc. MUCR Mexican crowngrass Paspalum fasciculatum Willd. ex Fluegg PAFA4 Mexican gamagrass Tripsacum lanceolatum Rupr. ex Fourn. TRLA11 Mexican grass Ixophorus unisetus (J. Presl) Schlecht. IXUN Mexican lovegrass Eragrostis mexicana (Hornem.) Link ERME Mexican lovegrass Eragrostis mexicana (Hornem.) Link ssp. mexicana ERMEM Mexican lovegrass Eragrostis mexicana (Hornem.) Link ssp. virescens (J. Presl) S.D. Koch & S?nchez Vega ERMEV Mexican muhly Muhlenbergia mexicana (L.) Trin. MUME2 Mexican panicgrass Panicum hirticaule J. Presl PAHI5 Mexican panicgrass Panicum hirticaule J. Presl var. hirticaule PAHIH Mexican panicgrass Panicum hirticaule J. Presl var. verrucosum F. Zuloaga & O. Morrone PAHIV Mexican ricegrass Achnatherum clandestinum (Hack.) Barkworth ACCL7 Mexican sprangletop Leptochloa fusca (L.) Kunth ssp. uninervia (J. Presl) N. Snow LEFUU Mexican teosinte Zea mexicana (Schrad.) Kuntze ZEME Mexican windmill grass Chloris submutica Kunth CHSU4 Meyer's bamboo Phyllostachys meyeri McClure PHME80 Mibora minima Agrostis minima L. AGMI5 Microchloa kunthii Paspalum tenuissimum M.E. Jones PATE16 Microlaena stipoides Ehrharta stipoides Labill. EHST Micropyrum patens Catapodium patens (Brot.) Rothm. & P. Silva CAPA76 Micropyrum tenellum Catapodium tenellum (L.) Batt. & Trab. CATE27 Microstegium vimineum Andropogon vimineum Trin. ANVI11 Microstegium vimineum Eulalia viminea (Trin.) Kuntze EUVI3 Microstegium vimineum Eulalia viminea (Trin.) Kuntze var. variabilis Kuntze EUVIV Microstegium vimineum Microstegium vimineum (Trin.) A. Camus var. imberbe (Nees) Honda MIVII millet crabgrass Digitaria panicea (Sw.) Urban DIPA4 milletgrass Milium L. MILIU Miscanthus capensis Miscanthidium capense (Nees) Stapf MICA18 Miscanthus sinensis Miscanthus sinensis Anderss. var. gracillimus A.S. Hitchc. MISIG Miscanthus sinensis Miscanthus sinensis Anderss. var. variegatus Beal MISIV Miscanthus sinensis Miscanthus sinensis Anderss. var. zebrinus Beal MISIZ mission grass Pennisetum polystachion (L.) J.A. Schultes PEPO14 mission grass Pennisetum polystachion (L.) J.A. Schultes ssp. setosum (Sw.) Brunken PEPOS2 mock bluestem Euclasta condylotricha (Hochst. ex Steud.) Stapf EUCO11 mock bluestem Euclasta Franch. EUCLA moco de pavo Eriochrysis Beauv. ERIOC3 moco de pavo Eriochrysis cayennensis Beauv. ERCA16 modest prickle grass Crypsis vaginiflora (Forssk.) Opiz CRVA2 Modoc muhly Muhlenbergia jonesii (Vasey) A.S. Hitchc. MUJO Mohr's bluestem Andropogon mohrii (Hack.) Hack. ex Vasey ANMO3 Mohr's threeawn Aristida mohrii Nash ARMO3 Mojave panicgrass Panicum mohavense J. Reeder PAMO17 Mojave wildrye Leymus salinus (M.E. Jones) A. L?ve ssp. mojavensis Barkworth & Atkins LESAM molassesgrass Melinis minutiflora Beauv. MEMI2 Molinia caerulea Aira caerulea L. AICA2 Molinia caerulea ssp. arundinacea Molinia caerulea (L.) Moench ssp. litoralis (Host) H. Paul [excluded] MOCAL2 Molinia caerulea ssp. arundinacea Molinia litoralis Host [excluded] MOLI8 Monroa Munroa Torr. [orthographic variant] MUNRO3 Monroa squarrosa Monroa squarrosa (Nutt.) Torr. var. floccuosa Vasey ex Beal MOSQF Monroa squarrosa Munroa squarrosa (Nutt.) Torr. var. floccuosa Vasey ex Beal [orthographic variant] MUSQF Monroa squarrosa Munroa squarrosa (Nutt.) Torr. [orthographic variant] MUSQ3 Montana wavy hairgrass Deschampsia flexuosa (L.) Trin. var. montana (L.) Ducomm. DEFLM Montana wheatgrass Elymus albicans (Scribn. & J.G. Sm.) A. L?ve ELAL7 Montezuma melicgrass Melica montezumae Piper MEMO moorgrass Molinia Schrank MOLIN Moraccan oat Avena maroccana Gand. AVMA Mormon needlegrass Achnatherum aridum (M.E. Jones) Barkworth ACAR14 Morton's alpine oatgrass Helictotrichon mortonianum (Scribn.) Henr. HEMO3 mosquito crowngrass Paspalum dispar Chase PADI15 mosquitograss Dasypyrum (Coss. & Durieu) T. Dur. DASYP mosquitograss Dasypyrum villosum (L.) Coss. & Durieu ex P. Candargy DAVI2 mossgrass Coleanthus Seidel COLEA mossgrass Coleanthus subtilis (Tratt.) Seidel COSU mountain barley ?Elyhordeum montanense (Scribn.) Bowden [Elymus virginicus ? Hordeum jubatum] ELMO4 mountain bentgrass Agrostis variabilis Rydb. AGVA mountain brome Bromus marginatus Nees ex Steud. BRMA4 mountain hairgrass Vahlodea atropurpurea (Wahlenb.) Fries ex Hartman VAAT2 mountain lovegrass Eragrostis leptophylla A.S. Hitchc. ERLE3 mountain muhly Muhlenbergia montana (Nutt.) A.S. Hitchc. MUMO mountain oat grass Calamagrostis avenoides (Hook. f.) Cockayne CAAV mountain ricegrass Piptatherum pungens (Torr. ex Spreng.) Dorn PIPU7 mourning lovegrass Eragrostis lugens Nees ERLU mouse barley Hordeum murinum L. HOMU Mt. Washington bluegrass Poa laxa Haenke POLA10 mucronate sprangeltop Leptochloa panicea (Retz.) Ohwi ssp. brachiata (Steudl.) N. Snow LEPAB mucronate sprangletop Leptochloa panicea (Retz.) Ohwi LEPA6 mucronate sprangletop Leptochloa panicea (Retz.) Ohwi ssp. mucronata (Michx.) Nowack LEPAM mudbank crowngrass Paspalum dissectum (L.) L. PADI5 Muhlenberg maidencane Amphicarpum muehlenbergianum (J.A. Schultes) A.S. Hitchc. AMMU2 Muhlenbergia ?curtisetosa Muhlenbergia schreberi J.F. Gmel. ssp. curtisetosa Scribn. MUSCC Muhlenbergia ?curtisetosa Muhlenbergia schreberi J.F. Gmel. var. curtisetosa (Scribn.) Steyermark & Kucera MUSCC2 Muhlenbergia andina Muhlenbergia comata (Thurb.) Thurb. ex Benth. MUCO4 Muhlenbergia asperifolia Sporobolus asperifolius (Nees & Meyen ex Trin.) Nees SPAS3 Muhlenbergia bushii Muhlenbergia brachyphylla Bush MUBR4 Muhlenbergia capillaris Muhlenbergia capillaris (Lam.) Trin. var. capillaris (Lam.) Trin. [superfluous autonym] MUCAC Muhlenbergia cuspidata Muhlenbergia brevifolia (Nutt.) M.E. Jones MUBR3 Muhlenbergia elongata Muhlenbergia xerophila C.O. Goodding MUXE Muhlenbergia emersleyi Muhlenbergia gooddingii S?derstrom MUGO Muhlenbergia expansa Agrostis trichopodes Ell. AGTR7 Muhlenbergia expansa Muhlenbergia capillaris (Lam.) Trin. var. trichopodes (Ell.) Vasey MUCAT Muhlenbergia filiformis Muhlenbergia filiformis (Thurb. ex S. Wats.) Rydb. var. fortis E.H. Kelso MUFIF Muhlenbergia filiformis Muhlenbergia idahoensis St. John MUID Muhlenbergia filiformis Muhlenbergia simplex (Scribn.) Rydb. MUSI2 Muhlenbergia filipes Muhlenbergia capillaris (Lam.) Trin. var. filipes (M.A. Curtis) Chapman ex Beal MUCAF Muhlenbergia frondosa Agrostis frondosa Poir. AGFR2 Muhlenbergia frondosa Muhlenbergia commutata (Scribn.) Bush MUCO5 Muhlenbergia glauca Muhlenbergia lemmonii Scribn. MULE Muhlenbergia glomerata Muhlenbergia glomerata (Willd.) Trin. var. cinnoides (Link) F.J. Herm. MUGLC Muhlenbergia glomerata Muhlenbergia racemosa (Michx.) B.S.P. var. cinnoides (Link) Boivin MURAC Muhlenbergia macroura Epicampes macroura Kunth EPMA Muhlenbergia mexicana Agrostis mexicana L. AGME4 Muhlenbergia mexicana Muhlenbergia ambigua Torr. MUAM Muhlenbergia mexicana Muhlenbergia foliosa (Roemer & J.A. Schultes) Trin. MUFO Muhlenbergia mexicana Muhlenbergia foliosa (Roemer & J.A. Schultes) Trin. ssp. ambigua (Torr.) Scribn. MUFOA Muhlenbergia mexicana Muhlenbergia foliosa (Roemer & J.A. Schultes) Trin. ssp. setiglumis (S. Wats.) Scribn. MUFOS Muhlenbergia mexicana Muhlenbergia mexicana (L.) Trin. var. filiformis (Willd.) Scribn. MUMEF Muhlenbergia microsperma Muhlenbergia debilis (Kunth) Kunth MUDE3 Muhlenbergia minutissima Sporobolus confusus auct. non (Fourn.) Vasey [misapplied] SPCO11 Muhlenbergia montana Muhlenbergia trifida Hack. MUTR4 Muhlenbergia palmeri Muhlenbergia dubioides C.O. Goodding MUDU2 Muhlenbergia peruviana Muhlenbergia pulcherrima Scribn. ex Beal MUPU Muhlenbergia racemosa Agrostis racemosa Michx. AGRA Muhlenbergia ramulosa Muhlenbergia wolfii (Vasey) Rydb. MUWO Muhlenbergia ramulosa Sporobolus ramulosus (Kunth) Kunth SPRA3 Muhlenbergia richardsonis Muhlenbergia squarrosa (Trin.) Rydb. MUSQ2 Muhlenbergia rigens Epicampes rigens Benth. EPRI3 Muhlenbergia rigens Muhlenbergia marshii I.M. Johnston MUMA3 Muhlenbergia rigens Muhlenbergia mundula I.M. Johnston MUMU2 Muhlenbergia rigida Muhlenbergia metcalfei M.E. Jones MUME Muhlenbergia schreberi Muhlenbergia palustris Scribn. MUPA6 Muhlenbergia schreberi Muhlenbergia schreberi J.F. Gmel. var. palustris (Scribn.) Scribn. MUSCP Muhlenbergia sobolifera Agrostis sobolifera Muhl. ex Willd. AGSO Muhlenbergia sobolifera Muhlenbergia sobolifera (Muhl. ex Willd.) Trin. var. setigera Scribn. MUSOS Muhlenbergia spiciformis Muhlenbergia parviglumis Vasey MUPA Muhlenbergia straminea Muhlenbergia virescens auct. non (Kunth) Kunth [misapplied] MUVI2 Muhlenbergia sylvatica Agrostis sylvatica Torr., non Huds. AGSY Muhlenbergia sylvatica Muhlenbergia sylvatica Torr. ex Gray var. robusta Fern. MUSYR Muhlenbergia sylvatica Muhlenbergia umbrosa Scribn. MUUM Muhlenbergia tenuiflora Agrostis tenuiflora Willd. AGTE5 Muhlenbergia tenuiflora Muhlenbergia tenuiflora (Willd.) B.S.P. ssp. variabilis Scribn. MUTEV2 Muhlenbergia tenuiflora Muhlenbergia tenuiflora (Willd.) B.S.P. var. variabilis (Scribn.) Pohl MUTEV Muhlenbergia tenuifolia Muhlenbergia monticola Buckl. MUMO2 Muhlenbergia torreyana Sporobolus torreyanus (J.A. Schultes) Nash SPTO7 Muhlenbergia torreyi Muhlenbergia gracillima Torr. MUGR Muhlenbergia uniflora Muhlenbergia uniflora (Muhl.) Fern. var. terrae-novae Fern. MUUNT Muhlenbergia uniflora Sporobolus uniflorus (Muhl.) Scribn. & Merr. SPUN2 Muhlenbergia villiflora var. villosa Muhlenbergia villosa Swallen MUVI muhly Muhlenbergia macroura (Kunth) Hitchc. MUMA4 muhly Muhlenbergia Schreb. MUHLE multiflower false Rhodes grass Trichloris pluriflora Fourn. TRPL3 Munj sweetcane Saccharum bengalense Retz. SABE8 munnik fescue Festuca scabra Vahl FESC4 murainagrass Ischaemum L. ISCHA muttongrass Poa fendleriana (Steud.) Vasey POFE muttongrass Poa fendleriana (Steud.) Vasey ssp. albescens (A.S. Hitchc.) Soreng POFEA muttongrass Poa fendleriana (Steud.) Vasey ssp. fendleriana POFEF muttongrass Poa fendleriana (Steud.) Vasey ssp. longiligula (Scribn. & Williams) Soreng POFEL naked crabgrass Digitaria nuda Schumacher DINU naked oat Avena nuda L. [excluded] AVNU2 Napa bluegrass Poa napensis Beetle PONA narihira bamboo Semiarundinaria fastuosa (Lat.-Marl. ex Mitford) Makino ex Nakai SEFA3 narrow alkaligrass Puccinellia angustata (R. Br.) Rand & Redf. PUAN2 narrow plumegrass Saccharum baldwinii Spreng. SABA10 Nassella cernua Stipa cernua Stebbins & R.M. Love STCE Nassella hyalina Stipa hyalina Nees STHY8 Nassella lepida Stipa lepida A.S. Hitchc. STLE3 Nassella lepida Stipa lepida A.S. Hitchc. var. andersonii (Vasey) A.S. Hitchc. STLEA Nassella leucotricha Stipa leucotricha Trin. & Rupr. STLE5 Nassella manicata Nassella formicarum auct. non (Delile) Barkworth [misapplied] NAFO3 Nassella manicata Stipa formicarum Delile STFO4 Nassella megapotamica Stipa megapotamica Spreng. ex Trin. STME3 Nassella neesiana Stipa neesiana Trin. & Rupr. STNE Nassella pulchra Stipa pulchra A.S. Hitchc. STPU2 Nassella tenuis Stipa tenuis Phil. STTE15 Nassella tenuissima Stipa tenuissima Trin. STTE4 Nassella trichotoma Stipa trichotoma Nees STTR8 Nassella viridula Stipa viridula Trin. STVI4 Natal crabgrass Digitaria natalensis Stent [excluded] DINA2 Navajo muhly Muhlenbergia arsenei A.S. Hitchc. MUAR4 Nealley's sprangletop Leptochloa nealleyi Vasey LENE2 Nealley's woollygrass Erioneuron nealleyi (Vasey) Tateoka ERNE9 needle and thread Hesperostipa (Elias) Barkworth HESPE11 needle and thread Hesperostipa comata (Trin. & Rupr.) Barkworth HECO26 needle and thread Hesperostipa comata (Trin. & Rupr.) Barkworth ssp. comata HECOC8 needle grama Bouteloua aristidoides (Kunth) Griseb. BOAR needle grama Bouteloua aristidoides (Kunth) Griseb. var. aristidoides BOARA needle Indiangrass Sorghastrum stipoides (Kunth) Nash SOST5 needlegrass Achnatherum Beauv. ACHNA needlegrass Nassella (Trin.) Desv. NASSE needlegrass Stipa breviflora Griseb. STBR9 needlegrass Stipa caucasica Schmalh. STCA35 needlegrass Stipa caucasica Schmalh. ssp. glareosa (P.Smirn.) Tzvel. STCAG needlegrass Stipa grandis P. Smirn. STGR13 needlegrass Stipa kirghisorum P. A. Smirn. STKI2 needlegrass Stipa klemenzii Roshev. STKL needlegrass Stipa krylovii Roshev. STKR needlegrass Stipa sibirica (L.) Lam. STSI8 needleleaf rosette grass Dichanthelium aciculare (Desv. ex Poir.) Gould & C.A. Clark DIAC Neeragrostis reptans Eragrostis reptans (Michx.) Nees ERRE2 Neeragrostis reptans Eragrostis weigeltiana (Reichenb. ex Trin.) Bush ERWE3 Neeragrostis reptans Poa reptans Michx. PORE15 Neostapfia colusana Anthochloa colusana (Burtt-Davy) Scribn. ANCO13 Neostapfia colusana Davyella colusana (Burtt-Davy) Hack. DACO3 Neostapfia colusana Stapfia colusana Burtt-Davy STCO10 Nepalese browntop Microstegium vimineum (Trin.) A. Camus MIVI Nevada needlegrass Achnatherum nevadense (B.L. Johnston) Barkworth ACNE10 New Jersey muhly Muhlenbergia torreyana (J.A. Schultes) A.S. Hitchc. MUTO New Mexico bluegrass Poa occidentalis Vasey POOC New Mexico feathergrass Hesperostipa neomexicana (Thurb. ex Coult.) Barkworth HENE5 New Mexico muhly Muhlenbergia pauciflora Buckl. MUPA2 New Mexico needlegrass Achnatherum perplexum Hoge & Barkworth ACPE13 neyraudia Neyraudia Hook. f. NEYRA Nicaraguan fountaingrass Pennisetum complanatum (Nees) Hemsl. PECO38 Niihau panicgrass Panicum niihauense St. John PANI Nile grass Acroceras macrum Stapf ACMA5 nimblewill Muhlenbergia schreberi J.F. Gmel. MUSC nineawn pappusgrass Enneapogon desvauxii Desv. ex Beauv. ENDE nit grass Gastridium Beauv. GASTR nit grass Gastridium phleoides (Nees & Meyen) C.E. Hubbard GAPH2 nodding bluegrass Poa reflexa Vasey & Scribn. ex Vasey PORE nodding brome Bromus anomalus Rupr. ex Fourn. BRAN nodding fescue Festuca subverticillata (Pers.) Alexeev FESU3 nodding muhly Muhlenbergia bushii Pohl MUBU nodding needlegrass Nassella cernua (Stebbins & R.M. Love) Barkworth NACE nodding semaphoregrass Pleuropogon refractus (Gray) Benth. ex Vasey PLRE2 Nootka alkaligrass Puccinellia nutkaensis (J. Presl) Fern. & Weatherby PUNU North Africa grass Ventenata dubia (Leers) Coss. VEDU North Africa grass Ventenata Koel. VENTE North Coast semaphoregrass Pleuropogon hooverianus (L. Benson) J.T. Howell PLHO2 northern bentgrass Agrostis mertensii Trin. AGME3 northern bluegrass Poa stenantha Trin. POST northern fescue Festuca viviparoidea Krajina ex Pavlick FEVI4 northern fescue Festuca viviparoidea Krajina ex Pavlick ssp. viviparoidea FEVIV5 northern panicgrass Dichanthelium boreale (Nash) Freckmann DIBO northern reedgrass Calamagrostis stricta (Timm) Koel. ssp. inexpansa (Gray) C.W. Greene CASTI3 northern ryegrass Elymus hirsutus J. Presl ELHI northern shorthusk Brachyelytrum aristosum (Michx.) Trel. BRAR9 northern sweetgrass Hierochloe hirta (Schrank) Borb HIHI northern sweetgrass Hierochloe hirta (Schrank) Borb?s ssp. arctica (J. Presl) G. Weim. HIHIA northern sweetgrass Hierochloe hirta (Schrank) Borb?s ssp. hirta (Schrank) Borb?s [excluded] HIHIH2 northern wildrice Zizania palustris L. ZIPA3 northern wildrice Zizania palustris L. var. interior (Fassett) Dore ZIPAI northern wildrice Zizania palustris L. var. palustris ZIPAP northwestern mannagrass Glyceria occidentalis (Piper) J.C. Nels. GLOC Nottoway Valley brome Bromus nottowayanus Fern. BRNO Nuttall's alkaligrass Puccinellia nuttalliana (J.A. Schultes) A.S. Hitchc. PUNU2 Oahu lovegrass Eragrostis paupera Jedw. ERPA2 oat Avena L. AVENA oatgrass Arrhenatherum Beauv. ARRHE oatgrass Danthonia DC. DANTH oatgrass Trisetum Pers. TRISE obovate beakgrain Diarrhena obovata (Gleason) Brandenburg DIOB3 Ochthochloa compressa Eleusine flagellifera Nees ELFL5 oil shale fescue Festuca dasyclada Hack. ex Beal FEDA old man's beard Arthrostylidium farctum (Aubl.) Soderstr. & Lourteig. ARFA8 oldfield grass Anthephora hermaphrodita (L.) Kuntze ANHE3 oldfield grass Anthephora Schreb. ANTHE3 oldpasture bluegrass Poa saltuensis Fern. & Wieg. POSA Olokele Gulch bluegrass Poa mannii Munro ex Hbd. POMA5 one and a half flower reedgrass Calamagrostis sesquiflora (Trin.) Tzvelev CASE24 oneflower grama Bouteloua uniflora Vasey BOUN onespike danthonia Danthonia unispicata (Thurb.) Munro ex Macoun DAUN onespike paspalum Paspalum unispicatum (Scribn. & Merr.) Nash PAUN oniongrass Melica bulbosa Geyer ex Porter & Coult. MEBU openflower rosette grass Dichanthelium laxiflorum (Lam.) Gould DILA9 Oplismenus compositus Panicum compositum L. PACO44 Oplismenus hirtellus ssp. hirtellus Oplismenus burmanni auct. non (Retz.) Beauv. [misapplied] OPBU Oplismenus hirtellus ssp. hirtellus Panicum hirtellum L. PAHI7 Oplismenus hirtellus ssp. setarius Oplismenus compositus (L.) Beauv. var. setarius (Lam.) F.M. Bailey OPCOS2 Oplismenus hirtellus ssp. setarius Oplismenus setarius (Lam.) Roemer & J.A. Schultes OPSE Oplismenus hirtellus ssp. setarius Panicum setarium Lam. PASE13 Oplismenus hirtellus ssp. undulatifolius Oplismenus undulatifolius (Ard.) Roemer & J.A. Schultes OPUN Oplismenus hirtellus ssp. undulatifolius Panicum undulatifolium Ard. PAUN3 orchardgrass Dactylis glomerata L. DAGL orchardgrass Dactylis glomerata L. ssp. glomerata DAGLG orchardgrass Dactylis L. DACTY Orcutt grass Orcuttia Vasey ORCUT Orcutt's brome Bromus orcuttianus Vasey BROR2 Orcutt's threeawn Aristida schiedeana Trin. & Rupr. var. orcuttiana (Vasey) Allred & Vald?s-Reyna ARSCO Orcuttia inaequalis Orcuttia californica Vasey var. inaequalis (Hoover) Hoover ORCAI Orcuttia viscida Orcuttia californica Vasey var. viscida Hoover ORCAV Oregon bentgrass Agrostis oregonensis Vasey AGOR Oregon semaphoregrass Pleuropogon oregonus Chase PLOR3 Oriental false wheatgrass Eremopyrum orientale (L.) Jaubert & Spach EROR7 Oriental pennisetum Pennisetum orientale (Willd.) L.C. Rich. [excluded] PEOR10 Oriental wheat Triticum turanicum Jakubz. TRTU3 Oryza barthii Oryza breviligulata A. Chev. & Roehr. ORBR4 Oryza sativa Oryza sativa L. var. fatua Prain ORSAF ovate goatgrass Aegilops geniculata Roth AEGE Oxychloris scariosa Chloris scariosa F. Muell. CHSC9 oxytenanthera Oxytenanthera Munro OXYTE2 Ozark dropseed Sporobolus vaginiflorus (Torr. ex Gray) Wood var. ozarkanus (Fern.) Shinners SPVAO Ozark grass Limnodea arkansana (Nutt.) L.H. Dewey LIAR Ozark grass Limnodea L.H. Dewey LIMNO2 Pacific bentgrass Agrostis avenacea J.F. Gmel. AGAV Pacific brome Bromus pacificus Shear BRPA3 Pacific fescue Vulpia microstachys (Nutt.) Munro var. pauciflora (Scribn. ex Beal) Lonard & Gould VUMIP Pacific foxtail Alopecurus saccatus Vasey ALSA3 Pacific hairgrass Deschampsia holciformis J. Presl DEHO2 Pacific Island silvergrass Miscanthus floridulus (Labill.) Warb. ex K. Schum. & Laut. MIFL3 Pacific Island thintail Lepturus repens (G. Forst.) R. Br. LERE Pacific lovegrass Eragrostis deflexa A.S. Hitchc. ERDE Pacific panicgrass Dichanthelium acuminatum (Sw.) Gould & C.A. Clark var. sericeum (Schmoll) Freckmann DIACS Pacific reedgrass Calamagrostis nutkaensis (J. Presl) J. Presl ex Steud. CANU Pacific wildrye Leymus pacificus (Gould) D.R. Dewey LEPA12 paja brava Paspalum millegrana Schrad. PAMI3 pale false mannagrass Torreyochloa pallida (Torr.) Church TOPA6 pale false mannagrass Torreyochloa pallida (Torr.) Church var. pallida TOPAP pale false mannagrass Torreyochloa pallida (Torr.) Church var. pauciflora (J. Presl) J.I. Davis TOPAP3 palisade grass Urochloa brizantha (C. Hochstetter ex A. Rich.) R. Webster URBR2 palmgrass Setaria palmifolia (Koenig) Stapf SEPA6 Pammel's oniongrass Melica subulata (Griseb.) Scribn. var. pammelii (Scribn.) C.L. Hitchc. MESUP pampas grass Cortaderia araucana Stapf COAR16 pampas grass Cortaderia Stapf CORTA Pan American balsamscale Elionurus tripsacoides Humb. & Bonpl. ex Willd. ELTR4 pan dropseed Sporobolus ioclados (Trin.) Nees SPIO2 Panama crowngrass Paspalum fimbriatum Kunth PAFI5 panic liverseed grass Urochloa panicoides Beauv. URPA panic veldtgrass Ehrharta erecta Lam. EHER panicgrass Panicum L. PANIC panicum Panicum makarikariense (Goos.) Van Rensb. PAMA17 panicum Panicum paniculatum Kuntze PAPA40 Panicum alatum var. minus Panicum hirticaule J. Presl var. minus Andersson PAHIM2 Panicum amarum var. amarulum Panicum amarulum A.S. Hitchc. & Chase PAAM6 Panicum amarum var. amarulum Panicum amarum Ell. ssp. amarulum (A.S. Hitchc. & Chase) Freckmann & Lelong PAAMA4 Panicum anceps Panicum anceps Michx. var. rhizomatum (A.S. Hitchc. & Chase) Fern. PAANR Panicum anceps Panicum rhizomatum A.S. Hitchc. & Chase PARH3 Panicum bergii Panicum pilcomayense Hack. PAPI Panicum bisulcatum Panicum acroanthum Steud. PAAC6 Panicum bulbosum Panicum bulbosum Kunth var. minor Vasey PABUM Panicum bulbosum Panicum plenum A.S. Hitchc. & Chase PAPL Panicum capillare Panicum barbipulvinatum Nash PABA8 Panicum capillare Panicum capillare L. ssp. barbipulvinatum (Nash) Tzvelev PACAB Panicum capillare Panicum capillare L. var. agreste Gattinger PACAA Panicum capillare Panicum capillare L. var. barbipulvinatum (Nash) R.L. McGregor PACAB3 Panicum capillare Panicum capillare L. var. brevifolium Vasey ex Rydb. & Shear PACAB2 Panicum capillare Panicum capillare L. var. occidentale Rydb. PACAO Panicum dichotomiflorum var. bartowense Panicum bartowense Scribn. & Merr. PABA2 Panicum dichotomiflorum var. dichotomiflorum Panicum dichotomiflorum Michx. var. geniculatum (Wood) Fern. PADIG Panicum dichotomiflorum var. puritanorum Panicum dichotomiflorum Michx. var. imperiorum Fern. PADII Panicum fauriei var. carteri Panicum carteri Hosaka PACA7 Panicum fauriei var. fauriei Panicum cornae St. John PACO24 Panicum fauriei var. fauriei Panicum degeneri Potztal PADE2 Panicum fauriei var. fauriei Panicum moomomiense St. John PAMO10 Panicum fauriei var. latius Panicum nubigenum Kunth var. latius St. John PANUL Panicum flexile Panicum capillare L. var. flexile Gattinger PACAF Panicum gattingeri Panicum capillare L. var. campestre Gattinger PACAC Panicum gattingeri Panicum philadelphicum Bernh. ex Trin. ssp. gattingeri (Nash) Freckmann & Lelong PAPHG Panicum hallii var. filipes Panicum filipes Scribn. PAFI7 Panicum hallii var. hallii Panicum lepidulum A.S. Hitchc. & Chase PALE2 Panicum hirticaule var. hirticaule Panicum capillare L. var. hirticaule (J. Presl) Gould PACAH Panicum hirticaule var. hirticaule Panicum capillare L. var. miliaceum (Vasey) Gould PACAM Panicum hirticaule var. hirticaule Panicum capillare L. var. pampinosum (A.S. Hitchc. & Chase) Gould PACAP Panicum hirticaule var. hirticaule Panicum hirticaule J. Presl var. miliaceum (Vasey) Beetle PAHIM Panicum hirticaule var. hirticaule Panicum hirticaule J. Presl var. pampinosum (A.S. Hitchc. & Chase) Beetle PAHIP Panicum hirticaule var. hirticaule Panicum pampinosum A.S. Hitchc. & Chase PAPA3 Panicum hirticaule var. hirticaule Panicum sonorum Beal PASO Panicum hirticaule var. stramineum Panicum capillare L. var. stramineum (A.S. Hitchc. & Chase) Gould PACAS Panicum hirticaule var. stramineum Panicum stramineum A.S. Hitchc. & Chase PAST4 Panicum mindanaense Panicum delicatum Hughes PADE19 Panicum niihauense Panicum pseudagrostis Trin. PAPS3 Panicum pellitum Panicum colliei Endl. PACO Panicum pellitum Panicum pellitoides F. Br. & St. John PAPE2 Panicum philadelphicum Panicum capillare L. var. sylvaticum Torr. PACAS2 Panicum philadelphicum Panicum lithophilum Swallen PALI4 Panicum philadelphicum Panicum philadelphicum Bernh. ex Trin. var. tuckermanii (Fern.) Steyermark & Schmoll PAPHT Panicum philadelphicum Panicum tuckermanii Fern. PATU Panicum repens Panicum gouinii Fourn. PAGO Panicum rigidulum var. combsii Panicum combsii Scribn. & Ball PACO22 Panicum rigidulum var. combsii Panicum longifolium Torr. var. combsii (Scribn. & Ball) Fern. PALOC Panicum rigidulum var. elongatum Panicum agrostoides Spreng. var. elongatum (Pursh) Scribn. PAAGE Panicum rigidulum var. elongatum Panicum elongatum Pursh, non Salisb. PAEL3 Panicum rigidulum var. elongatum Panicum stipitatum Nash PAST12 Panicum rigidulum var. pubescens Panicum anceps Michx. var. pubescens Vasey PAANP Panicum rigidulum var. pubescens Panicum longifolium Torr. PALO Panicum rigidulum var. pubescens Panicum longifolium Torr. var. pubescens (Vasey) Fern. PALOP Panicum rigidulum var. pubescens Panicum longifolium Torr. var. tusketense Fern. PALOT Panicum rigidulum var. rigidulum Panicum agrostoides Spreng. PAAG Panicum rigidulum var. rigidulum Panicum agrostoides Spreng. var. condensum (Nash) Fern. PAAGC Panicum rigidulum var. rigidulum Panicum agrostoides Spreng. var. ramosius (C. Mohr) Fern. PAAGR2 Panicum rigidulum var. rigidulum Panicum condensum Nash PACO19 Panicum rigidulum var. rigidulum Panicum elongatum Pursh var. ramosius C. Mohr PAELR Panicum rigidulum var. rigidulum Panicum rigidulum Bosc ex Nees var. condensum (Nash) Mohlenbrock PARIC2 Panicum schinzii Panicum laevifolium Hack. [excluded] PALA35 Panicum sumatrense Panicum miliare Lam. PAMI21 Panicum tenuifolium Panicum molokaiense O. Deg. & Whitney PAMO Panicum tenuifolium Panicum nephelophilum Gaud. var. rhyacophilum Hbd. PANER Panicum tenuifolium Panicum nephelophilum Gaud. var. tenuifolium (Hook. & Arn.) Hbd. PANET Panicum torridum Panicum havaiense Reichardt PAHA4 Panicum torridum Panicum nubigenum Kunth PANU Panicum virgatum var. virgatum Panicum virgatum L. var. cubense Griseb. PAVIC Panicum virgatum var. virgatum Panicum virgatum L. var. obtusum Wood PAVIO Panicum xerophilum Panicum heupueo St. John PAHE3 Pappophorum pappiferum Pappophorum alopecuroideum Vahl PAAL11 Pappophorum pappiferum Saccharum pappiferum Lam. SAPA26 Pappophorum vaginatum Pappophorum apertum Munro ex Scribn. PAAP2 Pappophorum vaginatum Pappophorum mucronulatum auct. non Nees [misapplied] PAMU3 Pappophorum vaginatum Pappophorum suffulbosum Arech. PASU7 pappusgrass Pappophorum Schreb. PAPPO para grass Urochloa mutica (Forssk.) T.Q. Nguyen URMU Paraguayan windmill grass Chloris canterai Arech. CHCA6 Paraguayan windmill grass Chloris canterai Arech. var. canterai CHCAC5 Paraguayan windmill grass Chloris canterai Arech. var. grandiflora (Roseng. & Izag.) D.E. Anderson CHCAG3 Parapholis incurva Aegilops incurva L. AEIN3 Parapholis incurva Pholiurus incurvus (L.) Schinz & Thellung PHIN15 Parish wheatgrass Elymus stebbinsii Gould ELST3 Parish wheatgrass Elymus stebbinsii Gould ssp. stebbinsii ELSTS2 Parish's California fescue Festuca parishii (Piper) A.S. Hitchc. FEPA6 Parish's needlegrass Achnatherum parishii (Vasey) Barkworth ACPA13 Parish's needlegrass Achnatherum parishii (Vasey) Barkworth var. parishii ACPAP Parish's threeawn Aristida purpurea Nutt. var. parishii (A.S. Hitchc.) Allred ARPUP5 parkland panicgrass Panicum tenuifolium Hook. & Arn. PATE6 Parry's grama Bouteloua parryi (Fourn.) Griffiths BOPA2 Parry's oatgrass Danthonia parryi Scribn. DAPA2 Pascopyrum smithii Agropyron molle (Scribn. & J.G. Sm.) Rydb. AGMO4 Pascopyrum smithii Agropyron smithii Rydb. AGSM Pascopyrum smithii Agropyron smithii Rydb. var. molle (Scribn. & J.G. Sm.) M.E. Jones AGSMM Pascopyrum smithii Agropyron smithii Rydb. var. palmeri (Scribn. & J.G. Sm.) Heller AGSMP Pascopyrum smithii Elymus smithii (Rydb.) Gould ELSM3 Pascopyrum smithii Elytrigia smithii (Rydb.) Nevski ELSM4 Pascopyrum smithii Elytrigia smithii (Rydb.) Nevski var. mollis (Scribn. & J.G. Sm.) Beetle ELSMM Paspalidium chapmanii Panicum chapmanii Vasey PACH8 Paspalidium chapmanii Setaria chapmanii (Vasey) Pilger SECH2 Paspalidium distans Panicum radiatum (Vickery) St. John PARA Paspalidium distans Paspalidium radiatum Vickery PARA8 Paspalidium distans Setaria distans (Trin.) Veldkamp SEDI14 Paspalidium geminatum var. geminatum Panicum geminatum Forssk. PAGE5 Paspalidium geminatum var. geminatum Setaria geminata (Forssk.) Veldkamp SEGE4 Paspalidium geminatum var. paludivagum Panicum paludivagum A.S. Hitchc. & Chase PAPA30 Paspalidium geminatum var. paludivagum Paspalidium paludivagum (A.S. Hitchc. & Chase) Parodi PAPA25 Paspalidium geminatum var. paludivagum Setaria germinata (Forssk.) Veldkamp var. paludivaga (A.S. Hitchc. & Chase) R. Webster SEGEP Paspalidium philippianum Paspalidium macrospermum Roseng. [excluded] PAMA13 paspalum Paspalum hieronymi Hack. PAHI13 Paspalum bifidum Paspalum bifidum (Bertol.) Nash var. projectum Fern. PABIP Paspalum blodgettii Paspalum simpsonii Nash PASI Paspalum caespitosum Paspalum melanospermum Desv. PAME4 Paspalum caespitosum Paspalum poiretii Roemer & J.A. Schultes PAPO9 Paspalum caespitosum Paspalum saugetii Chase PASA Paspalum denticulatum Paspalum lividum Trin. PALI7 Paspalum denticulatum Paspalum proliferum Arechav. PAPR24 Paspalum dilatatum var. pauciciliatum Paspalum pauciciliatum (Parodi) Herter PAPA36 Paspalum dissectum Panicum dissectum L. PADI9 Paspalum distichum Digitaria paspaloides Michx. DIPA14 Paspalum distichum Paspalum distichum L. var. indutum Shinners PADII2 Paspalum distichum Paspalum paspaloides (Michx.) Scribn. PAPA24 Paspalum floridanum Paspalum difforme Le Conte PADI4 Paspalum floridanum Paspalum floridanum Michx. var. glabratum Engelm. ex Vasey PAFLG Paspalum floridanum Paspalum giganteum Baldw. ex Vasey PAGI Paspalum floridanum Paspalum glabratum (Engelm. ex Vasey) C. Mohr PAGL8 Paspalum fluitans Paspalum mucronatum Muhl. PAMU9 Paspalum fluitans Paspalum repens auct. non Berg. [misapplied] PARE6 Paspalum fluitans Paspalum repens Berg. var. fluitans (Ell.) J. Wipff & S.D. Jones PAREF Paspalum hartwegianum Paspalum alcalinum Mez PAAL28 Paspalum laeve Paspalum circulare Nash PACI8 Paspalum laeve Paspalum laeve Michx. var. circulare (Nash) Stone PALAC Paspalum laeve Paspalum laeve Michx. var. pilosum Scribn. PALAP Paspalum laeve Paspalum longipilum Nash PALO10 Paspalum laeve Paspalum plenipilum Nash PAPL7 Paspalum langei Dimorpostachys langei Fourn. DILA12 Paspalum laxum Paspalum glabrum Poir. PAGL7 Paspalum molle Paspalum portoricense Nash PAPO5 Paspalum paniculatum Paspalum umbrosum Trin. PAUM2 Paspalum plicatulum Paspalum texanum Swallen PATE13 Paspalum praecox Paspalum lentiferum Lam. PALE10 Paspalum praecox Paspalum praecox Walt. var. curtisianum (Steud.) Vasey PAPRC2 Paspalum praecox Paspalum praecox Walt. var. curtissianum (Steud.) Vasey [orthographic error] PAPRC Paspalum pubiflorum Paspalum geminum Nash PAGE3 Paspalum pubiflorum Paspalum laeviglume Scribn. ex Nash PALA16 Paspalum pubiflorum Paspalum pubiflorum Rupr. ex Fourn. var. glabrum Vasey ex Scribn. PAPUG Paspalum racemosum Paspalum stoloniferum Bosc PAST22 Paspalum rupestre Paspalum leoninum Chase PALE6 Paspalum scrobiculatum Paspalum orbiculare G. Forst. PAOR3 Paspalum scrobiculatum Paspalum orbiculare G. Forst. var. orbiculare Forst. [superfluous autonym] PAORO Paspalum scrobiculatum var. bispicatum Paspalum polystachyum R. Br. PAPO11 Paspalum setaceum Paspalum bushii Nash PABU3 Paspalum setaceum Paspalum ciliatifolium Michx. PACI6 Paspalum setaceum Paspalum ciliatifolium Michx. var. muehlenbergii (Nash) Fern. PACIM Paspalum setaceum Paspalum ciliatifolium Michx. var. stramineum (Nash) Fern. PACIS Paspalum setaceum Paspalum debile Michx. PADE13 Paspalum setaceum Paspalum longepedunculatum Le Conte PALO5 Paspalum setaceum Paspalum muehlenbergii Nash PAMU8 Paspalum setaceum Paspalum propinquum Nash PAPR8 Paspalum setaceum Paspalum psammophilum Nash PAPS2 Paspalum setaceum Paspalum pubescens Muhl. ex Willd. PAPU8 Paspalum setaceum Paspalum rigidifolium Nash PARI6 Paspalum setaceum Paspalum separatum Shinners PASE4 Paspalum setaceum Paspalum setaceum Michx. var. calvescens Fern. PASEC Paspalum setaceum Paspalum setaceum Michx. var. ciliatifolium (Michx.) Vasey PASEC2 Paspalum setaceum Paspalum setaceum Michx. var. longepedunculatum (Le Conte) Wood PASEL Paspalum setaceum Paspalum setaceum Michx. var. muehlenbergii (Nash) D. Banks PASEM Paspalum setaceum Paspalum setaceum Michx. var. psammophilum (Nash) D. Banks PASEP Paspalum setaceum Paspalum setaceum Michx. var. rigidifolium (Nash) D. Banks PASER Paspalum setaceum Paspalum setaceum Michx. var. stramineum (Nash) D. Banks PASES Paspalum setaceum Paspalum setaceum Michx. var. supinum (Bosc ex Poir.) Trin. PASES2 Paspalum setaceum Paspalum setaceum Michx. var. villosissimum (Nash) D. Banks PASEV Paspalum setaceum Paspalum stramineum Nash PAST7 Paspalum setaceum Paspalum supinum Bosc ex Poir. PASU5 Paspalum unispicatum Panicum unispicatum Scribn. & Merr. PAUN2 Paspalum urvillei Paspalum larranagai Arech. PALA26 pasto micael Axonopus micay Garcia-Barr. AXMI pasto rojo Paspalum guenoarum Arechav. PAGU4 Patterson's bluegrass Poa abbreviata R. Br. ssp. pattersonii (Vasey) A.& D. L?ve & Kapoor POABP peacock sprangletop Leptochloa decipiens (R. Br.) Stapf ex Maiden ssp. peacockii (Maiden & Betche) N. Snow LEDEP2 pearl millet Pennisetum glaucum (L.) R. Br. PEGL2 pelos del diablo Aristida portoricensis Pilger ARPO3 pendantgrass Arctophila fulva (Trin.) Rupr. ex Anderss. ARFU2 pendantgrass Arctophila Rupr. ex Anderss. ARCTO2 Pennisetum alopecuroides Panicum alopecuroides L. PAAL19 Pennisetum ciliare Cenchrus ciliaris L. CECI Pennisetum ciliare Pennisetum ciliare (L.) Link var. ciliare (L.) Link [superfluous autonym] PECIC Pennisetum divisum Pennisetum dichotomum (Forssk.) Delile PEDI15 Pennisetum glaucum Panicum americanum L. PAAM4 Pennisetum glaucum Pennisetum americanum (L.) Leeke PEAM4 Pennisetum glaucum Pennisetum typhoides auct. non (Burm.) Stapf & C.E. Hubbard [misapplied] PETY Pennisetum macrourum Pennisetum quartinianum A. Rich. PEQU6 Pennisetum nervosum Cenchrus nervosus (Nees) Kuntze CENE Pennisetum polystachion Pennisetum polystachyon (L.) J.A. Schultes [orthographic variant] PEPO4 Pennisetum polystachion ssp. setosum Pennisetum polystachyon (L.) J.A. Schultes ssp. setosum (Sw.) Brunken [orthographic variant] PEPOS Pennisetum polystachion ssp. setosum Pennisetum setosum (Sw.) L.C. Rich. PESE4 Pennisetum setaceum Pennisetum ruppelii Steud. PERU4 Pennisetum setaceum Phalaris setacea Forssk. PHSE8 Pennisetum villosum Cenchrus longisetus M.C. Johnston CELO7 perennial cupgrass Eriochloa pseudoacrotricha (Stapf ex Thellung) J.M. Black ERPS80 perennial quakinggrass Briza media L. BRME perennial ryegrass Lolium perenne L. LOPE perennial ryegrass Lolium perenne L. ssp. perenne LOPEP perennial sandgrass Triplasis americana Beauv. TRAM7 perennial teosinte Zea perennis (A.S. Hitchc.) Reeves & Manglesdorf ZEPE perennial veldtgrass Ehrharta calycina Sm. EHCA Persian goatgrass Aegilops crassa Boiss. AECR Persian ryegrass Lolium persicum Boiss. & Hohen. ex Boiss. LOPE2 Persian wheat Triticum carthlicum Nevski TRCA24 Peruvian feathergrass Stipa ichu (Ruiz & Pav?n) Kunth STIC Peruvian muhly Muhlenbergia peruviana (Beauv.) Steud. MUPE3 Peruvian paspalum Paspalum racemosum Lam. PARA6 Peruvian watergrass Luziola peruviana Juss. ex J.F. Gmel. LUPE4 petioled fountaingrass Pennisetum petiolare (Hochst.) Chiov. PEPE31 Phalaris aquatica Phalaris stenoptera Hack. PHST12 Phalaris aquatica Phalaris tuberosa L. PHTU Phalaris aquatica Phalaris tuberosa L. var. hirtiglumis Batt. & Trabut PHTUH Phalaris aquatica Phalaris tuberosa L. var. stenoptera (Hack.) A.S. Hitchc. PHTUS Phalaris arundinacea Phalaris arundinacea L. var. picta L. PHARP Phalaris arundinacea Phalaroides arundinacea (L.) Raeusch. PHAR15 Phalaris arundinacea Phalaroides arundinacea (L.) Raeusch. var. picta (L.) Tzvelev PHARP3 Phalaris caerulescens Phalaris coerulescens Desf. [orthographic variant] PHCO40 Phalaris paradoxa Phalaris paradoxa L. var. praemorsa (Lam.) Coss. & Durieu PHPAP Phanopyrum gymnocarpon Panicum gymnocarpon Ell. PAGY2 Pharus lappulaceus Pharus glaber Kunth PHGL8 Philadelphia panicgrass Panicum philadelphicum Bernh. ex Trin. PAPH Philippine watercrown grass Paspalidium philippianum Parodi [excluded] PAPH2 Phippsia algida Agrostis algida C.J. Phipps AGAL7 Phippsia concinna var. algidiformis Phippsia ?algidiformis (H. Sm.) Tzvelev PHAL13 Phippsia concinna var. algidiformis Phippsia algida (C. J. Phipps) R. Br. ssp. algidiformis (H. Sm.) A.& D. L?ve PHALA8 Phippsia concinna var. algidiformis Phippsia algida (C. J. Phipps) R. Br. var. algidiformis (H. Sm.) Boivin PHALA9 Phleum alpinum Phleum alpinum L. var. commutatum (Gaudin) Griseb. PHALC2 Phleum alpinum Phleum commutatum Gaudin PHCO9 Phleum alpinum Phleum commutatum Gaudin var. americanum (Fourn.) Hult PHCOA Phleum hirsutum Phleum michelii All. PHMI18 Phleum pratense Phleum nodosum L. PHNO4 Phleum pratense Phleum pratense L. ssp. nodosum (L.) Arcang. PHPRN2 Phleum pratense Phleum pratense L. var. nodosum (L.) Huds. PHPRN Phleum subulatum Phleum bellardii Willd. PHBE5 Phragmites australis Phragmites australis (Cav.) Trin. ex Steud. var. berlandieri (Fourn.) C.F. Reed PHAUB Phragmites australis Phragmites communis Trin. PHCO15 Phragmites australis Phragmites communis Trin. ssp. berlandieri (Fourn.) A.& D. L?ve PHCOB Phragmites australis Phragmites communis Trin. var. berlandieri (Fourn.) Fern. PHCOB2 Phragmites australis Phragmites phragmites (L.) Karst. PHPH4 Phyllostachys edulis Phyllostachys pubescens Mazel ex Houz. PHPU23 Phyllostachys heteroclada Phyllostachys congesta Rendle PHCO45 Phyllostachys mannii Phyllostachys decora McClure PHDE20 Phyllostachys nigra Phyllostachys henionis Mitf. PHHE14 Phyllostachys nigra Phyllostachys nigra (Lodd. ex Lindl.) Munro var. henionis (Mitf.) Stapf ex Rendle PHNIH2 Phyllostachys sulphurea Phyllostachys viridis (Young) McClure PHVI14 Pickering's reedgrass Calamagrostis pickeringii Gray CAPI piedmont threeawn Aristida condensata Chapman ARCO7 pili uka Trisetum glomeratum (Kunth) Trin. ex Steud. TRGL3 pincushion grass Microchloa caffra Nees MICA17 pine barren fluffgrass Tridens ambiguus (Ell.) J.A. Schultes TRAM pine barren sandreed Calamovilfa brevipilis (Torr.) Scribn. CABR2 pine dropseed Blepharoneuron tricholepis (Torr.) Nash BLTR pine muhly Muhlenbergia dubia Fourn. ex Hemsl. MUDU pine needlegrass Achnatherum pinetorum (M.E. Jones) Barkworth ACPI2 pinegrass Calamagrostis rubescens Buckl. CARU pineland threeawn Aristida stricta Michx. ARST5 pinescrub bluestem Schizachyrium niveum (Swallen) Gould SCNI2 pinewoods bluestem Andropogon arctatus Chapman ANAR2 pinewoods fingergrass Eustachys petraea (Sw.) Desv. EUPE9 pineywoods dropseed Sporobolus junceus (Beauv.) Kunth SPJU pink fluffgrass Tridens congestus (L.H. Dewey) Nash TRCO2 pink pappusgrass Pappophorum bicolor Fourn. PABI2 pinyon ricegrass Piptochaetium fimbriatum (Kunth) A.S. Hitchc. PIFI Piper's bluegrass Poa piperi A.S. Hitchc. POPI2 Piptatherum aequiglume Oryzopsis aequiglumis Duthie ex Hook. f. ORAE2 Piptatherum canadense Oryzopsis canadensis (Poir.) Torr. ORCA5 Piptatherum canadense Stipa canadensis Poir. STCA19 Piptatherum coerulescens Oryzopsis coerulescens (Desf.) Hack. [excluded] ORCO13 Piptatherum exiguum Oryzopsis exigua Thurb. OREX Piptatherum micranthum Oryzopsis micrantha (Trin. & Rupr.) Thurb. ORMI2 Piptatherum microcarpum Oryzopsis microcarpa Pilg. ORMI8 Piptatherum miliaceum Agrostis miliacea L. AGMI6 Piptatherum miliaceum Oryzopsis miliacea (L.) Benth. & Hook. f. ex Aschers. & Schweinf. ORMI3 Piptatherum molinioides Oryzopsis molinioides (Boiss.) Hack. ex Paulsen ORMO4 Piptatherum munroi Oryzopsis munroi Stapf ORMU4 Piptatherum paradoxum Oryzopsis paradoxa (L.) Nutt. ORPA7 Piptatherum pungens Oryzopsis pungens (Torr. ex Spreng.) A.S. Hitchc. ORPU4 Piptatherum purpurascens Oryzopsis purpurascens Hack. ex Paulsen ORPU11 Piptatherum racemosum Oryzopsis racemosa (Sm.) Ricker ex A.S. Hitchc. ORRA2 Piptatherum shoshoneanum Stipa shoshoneana Curto & D. Henderson STSH3 Piptatherum songaricum Oryzopsis songarica (Trin. & Rupr.) B. Fedtsch. ORSO3 Piptochaetium avenaceum Stipa avenacea L. STAV Piptochaetium avenacioides Stipa avenacioides Nash STAV2 Piptochaetium fimbriatum Piptochaetium fimbriatum (Kunth) A.S. Hitchc. var. confine I.M. Johnston PIFIC Piptochaetium fimbriatum Stipa fimbriata Kunth STFI4 Piptochaetium napostaense Stipa hypogona Hack. STHY9 Piptochaetium pringlei Stipa pringlei (Beal) Scribn. STPR2 Piptochaetium setosum Urachne setosa Trin. URSE4 Piptochaetium stipoides Urachne stipoides Trin. & Rupr. URST3 Piptochaetium stipoides var. purpurascens Piptochaetium ovatum (Trin.) Desv. var. purpurascens Hack. [excluded] PIOVP2 pitchfork crowngrass Paspalum bifidum (Bertol.) Nash PABI3 pitscale grass Hackelochloa granularis (L.) Kuntze HAGR3 pitscale grass Hackelochloa Kuntze HACKE2 pitted beardgrass Bothriochloa pertusa (L.) A. Camus BOPE2 plains bluegrass Poa arida Vasey POAR3 plains bristlegrass Setaria vulpiseta (Lam.) Roemer & J.A. Schultes SEVU2 plains lovegrass Eragrostis intermedia A.S. Hitchc. ERIN plains muhly Muhlenbergia cuspidata (Torr. ex Hook.) Rydb. MUCU3 plains reedgrass Calamagrostis montanensis Scribn. ex Vasey CAMO plains rough fescue Festuca hallii (Vasey) Piper FEHA3 plantain signalgrass Urochloa plantaginea (Link) R. Webster URPL Pleioblastus simonii Arundinaria simonii (Carr.) A.& C. Rivi?re ARSI6 Pleuraphis jamesii Hilaria jamesii (Torr.) Benth. HIJA Pleuraphis mutica Hilaria mutica (Buckl.) Benth. HIMU2 Pleuraphis rigida Hilaria rigida (Thurb.) Benth. ex Scribn. HIRI Pleuropogon californicus var. californicus Lophochlaena californica Nees LOCA10 Pleuropogon californicus var. davyi Lophochlaena californica Nees var. davyi (L. Benson) A.& D. L?ve LOCAD4 Pleuropogon californicus var. davyi Pleuropogon davyi L. Benson PLDA Pleuropogon hooverianus Lophochlaena refracta Gray var. hooverianus (L. Benson) A.& D. L?ve LOREH2 Pleuropogon hooverianus Pleuropogon refractus (Gray) Benth. ex Vasey var. hooverianus L. Benson PLREH Pleuropogon oregonus Lophochlaena oregona (Chase) P.H. But LOOR4 Pleuropogon refractus Lophochlaena refracta Gray LORE6 plumegrass Dichelachne Endl. DICHE plumegrass Dichelachne micrantha (Cav.) Domin DIMI9 Poa ?limosa Poa ?fibrata Swallen (pro sp.) [not hybrid] POFI Poa ?nematophylla Poa cusickii Vasey ssp. pubens Keck POCUP2 Poa ?nematophylla Poa longiligula Scribn. & Williams var. wyomingensis Williams POLOW Poa abbreviata ssp. pattersonii Poa abbreviata R. Br. ssp. jordalii (Porsild) Hult POABJ Poa abbreviata ssp. pattersonii Poa abbreviata R. Br. var. jordalii (Porsild) Boivin POABJ2 Poa abbreviata ssp. pattersonii Poa jordalii Porsild POJO Poa abbreviata ssp. pattersonii Poa pattersonii Vasey POPA3 Poa alpina Poa alpina L. ssp. vivipara (L.) Arcang. POALV2 Poa alpina Poa alpina L. var. vivipara L. POALV Poa alpina Poa vivipara (L.) Willd. POVI16 Poa annua Poa annua L. var. aquatica Aschers. POANA Poa annua Poa annua L. var. reptans Hausskn. POANR Poa arctica ssp. aperta Poa aperta Scribn. & Merr. POAP3 Poa arctica ssp. arctica Poa arctica R. Br. ssp. longiculmis Hult POARL5 Poa arctica ssp. arctica Poa arctica R. Br. ssp. williamsii (Nash) Hult POARW2 Poa arctica ssp. arctica Poa arctica R. Br. var. glabriflora Rosh. POARG2 Poa arctica ssp. arctica Poa arctica R. Br. var. vivipara Hook. POARV Poa arctica ssp. arctica Poa cenisia All. var. arctica (R. Br.) Richter POCEA Poa arctica ssp. arctica Poa longipila Nash POLO10 Poa arctica ssp. arctica Poa williamsii Nash POWI2 Poa arctica ssp. grayana Poa arctica R. Br. var. grayana (Vasey) Dorn POARG3 Poa arctica ssp. grayana Poa grayana Vasey POGR12 Poa arctica ssp. lanata Poa arctica R. Br. var. lanata (Scribn. & Merr.) Boivin POARL2 Poa arctica ssp. lanata Poa arctica R. Br. var. vivipara Hult POARV2 Poa arctica ssp. lanata Poa lanata Scribn. & Merr. POLA Poa arctica ssp. lanata Poa malacantha Komarov POMA4 Poa arida Poa glaucifolia Scribn. & Williams ex Williams POGL3 Poa arida Poa pseudopratensis Scribn. & Rydb. POPS3 Poa arnowiae Poa curta auct. non Rydb. [misapplied] POCU Poa autumnalis Poa flexuosa Muhl., non Sm. POFL10 Poa bolanderi Poa horneri St. John POHO5 Poa bulbosa ssp. nevskii Poa nevskii Roshev. ex Ovcz. PONE19 Poa cenisia ssp. sardoa Poa fontqueri Braun-Blanq. POFO9 Poa cita Poa caespitosa G. Forst. ex Spreng., nom. illeg. [anomalous] POCA50 Poa cusickii Poa cusickii Vasey var. cusickii Vasey [superfluous autonym] POCUC5 Poa cusickii ssp. cusickii Poa filifolia Vasey POFI6 Poa cusickii ssp. cusickii Poa hansenii Scribn. POHA3 Poa cusickii ssp. epilis Poa cusickii Vasey var. epilis (Scribn.) C.L. Hitchc. POCUE Poa cusickii ssp. epilis Poa epilis Scribn. POEP3 Poa cusickii ssp. pallida Poa cusickii Vasey var. pallida (Soreng) Dorn POCUP5 Poa cusickii ssp. purpurascens Poa cusickii Vasey var. purpurascens (Vasey) C.L. Hitchc. POCUP Poa cuspidata Poa brachyphylla J.A. Schultes POBR11 Poa fendleriana ssp. albescens Poa albescens A.S. Hitchc. POAL14 Poa fendleriana ssp. longiligula Poa fendleriana (Steud.) Vasey var. longiligula (Scribn. & Williams) Gould POFEL2 Poa fendleriana ssp. longiligula Poa longiligula Scribn. & Williams POLO Poa glauca Poa balfourii Parn. POBA10 Poa glauca ssp. glauca Poa ?tormentuosa Butters & Abbe POTO6 Poa glauca ssp. glauca Poa glauca Vahl ssp. conferta (Blytt) Lindm. POGLC3 Poa glauca ssp. glauca Poa glauca Vahl ssp. glaucantha (Gaudin) Lindm. POGLG2 Poa glauca ssp. glauca Poa glauca Vahl var. conferta (Blytt) Nannf. POGLC Poa glauca ssp. glauca Poa glauca Vahl var. laxiuscula (Blytt) Lindm. POGLL Poa glauca ssp. glauca Poa glaucantha Gaudin POGL2 Poa glauca ssp. glauca Poa nascopieana Polunin PONA5 Poa glauca ssp. glauca Poa scopulorum Butters & Abbe POSC14 Poa glauca ssp. litvinoviana Poa marginata Ovcz. POMA39 Poa glauca ssp. rupicola Poa glauca Vahl var. rupicola (Nash ex Rydb.) Boivin POGLR Poa glauca ssp. rupicola Poa rupicola Nash ex Rydb. PORU10 Poa howellii Poa bolanderi Vasey ssp. howellii (Vasey & Scribn.) Keck POBOH Poa howellii Poa bolanderi Vasey var. howellii (Vasey & Scribn.) M.E. Jones POBOH2 Poa laxa ssp. fernaldiana Poa fernaldiana Nannf. POFE2 Poa laxa ssp. fernaldiana Poa flexuosa Sm. ssp. fernaldiana (Nannf.) A.& D. L?ve POFLF Poa leibergii Poa vaseyochloa Scribn. POVA Poa leptocoma Poa leptocoma Trin. ssp. leptocoma Trin. [superfluous autonym] POLEL2 Poa lettermanii Poa montevansii L. Kelso POMO Poa lettermanii Puccinellia lettermanii (Vasey) Ponert PULE2 Poa litorosa Festuca scoparia Hook. f. FESC7 Poa macrantha Poa douglasii Nees ssp. macrantha (Vasey) Keck PODOM Poa macrantha Poa douglasii Nees var. macrantha (Vasey) Boivin PODOM3 Poa macrocalyx Poa hispidula Vasey POHI Poa macrocalyx Poa hispidula Vasey var. aleutica Hult POHIA Poa macrocalyx Poa hispidula Vasey var. vivipara Hult POHIV Poa macrocalyx Poa norbergii Hult PONO Poa macrocalyx Poa turneri Scribn. POTU Poa marcida Poa saltuensis Fern. & Wieg. var. marcida (A.S. Hitchc.) Boivin POSAM2 Poa nemoralis ssp. interior Poa interior Rydb. POIN Poa nemoralis ssp. interior Poa nemoralis L. var. interior (Rydb.) Butters & Abbe PONEI Poa palustris Poa crocata Michx. POCR7 Poa palustris Poa eyerdamii Hult POEY2 Poa palustris Poa triflora Gilib. POTR19 Poa paucispicula Poa leptocoma Trin. ssp. paucispicula (Scribn. & Merr.) Tzvelev POLEP2 Poa paucispicula Poa leptocoma Trin. var. paucispicula (Scribn. & Merr.) C.L. Hitchc. POLEP Poa paucispicula Poa merrilliana A.S. Hitchc. POME15 Poa pratensis ssp. alpigena Poa alpigena (Fries ex Blytt) Lindm. f. POAL Poa pratensis ssp. alpigena Poa pratensis L. var. alpigena Fries ex Blytt POPRA5 Poa pratensis ssp. colpodea Poa alpigena (Fries ex Blytt) Lindm. f. ssp. colpodea (Fries ex Blytt) Tzvelev POALC2 Poa pratensis ssp. colpodea Poa alpigena (Fries ex Blytt) Lindm. f. var. colpodea (Fries ex Blytt) Schol. POALC3 Poa pratensis ssp. colpodea Poa pratensis L. var. colpodea (Fries ex Blytt) Soreng POPRC2 Poa pratensis ssp. colpodea Poa pratensis L. var. vivipara (Malmgr.) Boivin POPRV Poa pratensis ssp. irrigata Poa pratensis L. ssp. rigens (Hartman) Tzvelev POPRR Poa pratensis ssp. irrigata Poa pratensis L. ssp. subcaerulea (Sm.) Hiitonen POPRS Poa pratensis ssp. irrigata Poa pratensis L. var. rigens (Hartman) Wahlenb. POPRR2 Poa pratensis ssp. irrigata Poa subcaerulea Sm. POSU Poa pratensis ssp. pratensis Poa agassizensis Boivin & D. L?ve POAG Poa pratensis ssp. pratensis Poa angustifolia L. POAN6 Poa pratensis ssp. pratensis Poa pratensis L. ssp. agassizensis (Boivin & D. L?ve) Taylor & MacBryde POPRA Poa pratensis ssp. pratensis Poa pratensis L. ssp. angustifolia (L.) Lej. POPRA2 Poa pratensis ssp. pratensis Poa pratensis L. var. angustifolia (L.) Gaudin POPRA3 Poa pratensis ssp. pratensis Poa pratensis L. var. domestica Laestad. POPRD Poa pratensis ssp. pratensis Poa pratensis L. var. gelida (Roemer & J.A. Schultes) B?cher POPRG Poa pratensis ssp. pratensis Poa pratensis L. var. iantha Wahlenb. POPRI Poa pseudoabbreviata Poa brachyanthera Hult POBR Poa reflexa Poa leptocoma Trin. var. reflexa (Vasey & Scribn. ex Vasey) M.E. Jones POLER Poa saltuensis Poa debilis Torr. PODE6 Poa saltuensis Poa languida A.S. Hitchc. POLA2 Poa saltuensis Poa saltuensis Fern. & Wieg. var. microlepis Fern. & Wieg. POSAM Poa secunda Poa ampla Merr. POAM Poa secunda Poa brachyglossa Piper POBR12 Poa secunda Poa buckleyana Nash POBU4 Poa secunda Poa canbyi (Scribn.) T.J. Howell POCA Poa secunda Poa confusa Rydb. POCO17 Poa secunda Poa englishii St. John & Hardin POEN2 Poa secunda Poa gracillima Vasey POGR Poa secunda Poa gracillima Vasey var. multnomae (Piper) C.L. Hitchc. POGRM Poa secunda Poa incurva Scribn. & Williams POIN24 Poa secunda Poa juncifolia Scribn. POJU Poa secunda Poa juncifolia Scribn. ssp. porteri Keck POJUP Poa secunda Poa juncifolia Scribn. var. ampla (Merr.) Dorn POJUA Poa secunda Poa juncifolia Scribn. var. juncifolia Scribn. [superfluous autonym] POJUJ Poa secunda Poa laevigata Scribn. POLA15 Poa secunda Poa nevadensis Vasey ex Scribn. PONE3 Poa secunda Poa nevadensis Vasey ex Scribn. var. juncifolia (Scribn.) Beetle PONEJ Poa secunda Poa orcuttiana Vasey POOR4 Poa secunda Poa sandbergii Vasey POSA12 Poa secunda Poa scabrella (Thurb.) Benth. ex Vasey POSC Poa secunda Poa secunda J. Presl ssp. juncifolia (Scribn.) Soreng POSEJ Poa secunda Poa secunda J. Presl ssp. secunda J. Presl [superfluous autonym] POSES6 Poa secunda Poa secunda J. Presl var. elongata (Vasey) Dorn POSEE Poa secunda Poa secunda J. Presl var. incurva (Scribn. & Williams) Beetle POSEI2 Poa secunda Poa secunda J. Presl var. stenophylla (Vasey) Beetle POSES3 Poa secunda Poa stenantha Trin. var. sandbergii (Vasey) Boivin POSTS Poa sieberiana Poa australis R. Br. POAU12 Poa stenantha Poa macroclada Rydb. POMA3 Poa strictiramea Poa involuta A.S. Hitchc. POIN2 Poa trivialis Poa attica Boiss. & Heldr. POAT8 Poa trivialis ssp. sylvicola Poa sylvicola Guss. POSY2 Poa unilateralis ssp. pachypholis Poa pachypholis Piper POPA27 Poa versicolor ssp. araratica Poa araratica Trautv. POAR20 Poa versicolor ssp. ochotensis Poa sphondylodes Trin. POSP15 Poa wheeleri Poa nervosa (Hook.) Vasey var. wheeleri (Vasey) C.L. Hitchc. PONEW Point Reyes bentgrass Agrostis clivicola Crampton var. punta-reyesensis Crampton AGCLP polar alkaligrass Puccinellia deschampsioides Sorensen PUDE2 polargrass Arctagrostis Griseb. ARCTA polymorph bamboo Bambusa polymorpha Munro BAPO6 Polynesian 'ohe Schizostachyum glaucifolium (Rupr.) Munro SCGL Polynesian 'ohe Schizostachyum Nees SCHIZ5 Polypogon imberbis Chaetotropis imberbis (Phil.) Bj?rkman CHIM4 Polypogon imberbis Nowodworkya imberbis Phil. NOIM Polypogon interruptus Polypogon lutosus auct. non (Poir.) A.S. Hitchc. [misapplied] POLU5 Polypogon monspeliensis Alopecurus monspeliensis L. ALMO6 Polypogon viridis Agrostis semiverticillata (Forssk.) C. Christens. AGSE2 Polypogon viridis Agrostis verticillata Vill. AGVE2 Polypogon viridis Agrostis viridis Gouan AGVI11 Polypogon viridis Polypogon semiverticillatus (Forssk.) Hyl. POSE11 Polytrias indica Andropogon amaurus B?se ex Miq. ANAM4 Polytrias indica Eulalia amaura (B?se ex Miq.) Ohwi EUAM5 Polytrias indica Polytrias amaura (B?se ex Miq.) Kuntze nom. illeg. POAM12 Polytrias indica Polytrias praemorsa (Nees) Hack. POPR7 pond lovegrass Eragrostis japonica (Thunb.) Trin. ERJA4 porcupinegrass Hesperostipa spartea (Trin.) Barkworth HESP11 Porsild's bluegrass Poa porsildii Gjaerev. POPO9 Porter brome Bromus porteri (Coult.) Nash BRPO2 Porter's false needlegrass Ptilagrostis porteri (Rydb.) W.A. Weber PTPO Porter's melicgrass Melica porteri Scribn. MEPO Porter's melicgrass Melica porteri Scribn. var. laxa Boyle MEPOL Porter's melicgrass Melica porteri Scribn. var. porteri MEPOP5 Porter's reedgrass Calamagrostis porteri Gray CAPO3 Porter's reedgrass Calamagrostis porteri Gray ssp. insperata (Swallen) C.W. Greene CAPOI Porter's reedgrass Calamagrostis porteri Gray ssp. porteri CAPOP poverty brome Bromus sterilis L. BRST2 poverty dropseed Sporobolus vaginiflorus (Torr. ex Gray) Wood SPVA poverty dropseed Sporobolus vaginiflorus (Torr. ex Gray) Wood var. vaginiflorus SPVAV2 poverty oatgrass Danthonia spicata (L.) Beauv. ex Roemer & J.A. Schultes DASP2 poverty threeawn Aristida divaricata Humb. & Bonpl. ex Willd. ARDI5 prairie cordgrass Spartina pectinata Bosc ex Link SPPE prairie cupgrass Eriochloa contracta A.S. Hitchc. ERCO8 prairie dropseed Sporobolus heterolepis (Gray) Gray SPHE prairie false oat Trisetum interruptum Buckl. TRIN5 prairie Junegrass Koeleria macrantha (Ledeb.) J.A. Schultes KOMA prairie panicgrass Panicum brachyanthum Steud. PABR2 prairie sandreed Calamovilfa longifolia (Hook.) Scribn. CALO prairie sandreed Calamovilfa longifolia (Hook.) Scribn. var. longifolia CALOL2 prairie sandreed Calamovilfa longifolia (Hook.) Scribn. var. magna Scribn. & Merr. CALOM prairie threeawn Aristida oligantha Michx. AROL prairie wedgescale Sphenopholis obtusata (Michx.) Scribn. SPOB pricklegrass Crypsis Ait. CRYPS prickly spiralgrass Tuctoria mucronata (Crampton) J. Reeder TUMU Prieur's umbrellagrass Enteropogon prieurii (Kunth) W.D. Clayton ENPR Pringle's bluegrass Poa pringlei Scribn. POPR2 Pringle's speargrass Piptochaetium pringlei (Beal) Parodi PIPR2 prostrate dallis grass Paspalum dilatatum Poir. var. pauciciliatum Parodi PADIP3 Psathyrostachys juncea ?Leymostachys korovinii Tzvelev LEKO Psathyrostachys juncea Elymus junceus Fisch. ELJU Pseudoroegneria geniculata ssp. scythica Elytrigia scythica (Nevski) Nevski ELSC3 Pseudoroegneria kosaninii Agropyron kosaninii Nabelek AGKO2 Pseudoroegneria libanotica Agropyron libanoticum Hack. AGLI4 Pseudoroegneria spicata ssp. inermis Agropyron inerme (Scribn. & J.G. Sm.) Rydb. AGIN5 Pseudoroegneria spicata ssp. inermis Agropyron spicatum Pursh var. inerme (Scribn. & J.G. Sm.) Heller AGSPI Pseudoroegneria spicata ssp. spicata Agropyron spicatum Pursh AGSP Pseudoroegneria spicata ssp. spicata Agropyron spicatum Pursh var. pubescens Elmer AGSPP Pseudoroegneria spicata ssp. spicata Agropyron vaseyi Scribn. & J.G. Sm. AGVA2 Pseudoroegneria spicata ssp. spicata Elymus spicatus (Pursh) Gould ELSP3 Pseudoroegneria spicata ssp. spicata Elytrigia spicata (Pursh) D.R. Dewey ELSP4 Pseudoroegneria spicata ssp. spicata Roegneria spicata (Pursh) Beetle ROSP6 Pseudoroegneria stipifolia Agropyron stipifolium Czern. ex Nevski AGST6 Pseudoroegneria tauri Agropyron tauri Boiss. & Balansa AGTA2 Pseudosasa japonica Arundinaria japonica Sieb. & Zucc. ex Steud. ARJA Pseudosasa japonica Sasa japonica (Sieb. & Zucc. ex Steud.) Makino SAJA4 pseudovina Festuca pseudovina Hack. ex Wiesb. FEPS4 Psilurus incurvus Psilurus aristatus (L.) Trevis. PSAR11 Ptilagrostis kingii Oryzopsis kingii (Boland.) Beal ORKI Ptilagrostis kingii Stipa kingii Boland. STKI Ptilagrostis porteri Ptilagrostis mongholica (Turcz. ex Trin.) Griseb. ssp. porteri (Rydb.) Barkworth PTMOP Ptilagrostis porteri Ptilagrostis mongholica auct. non (Turcz. ex Trin.) Griseb. [misapplied] PTMO3 Ptilagrostis porteri Stipa porteri Rydb. STPO7 pubescent Lemmon's needlegrass Achnatherum lemmonii (Vasey) Barkworth var. pubescens (Crampton) Barkworth ACLEP pubescent western needlegrass Achnatherum occidentale (Thurb.) Barkworth ssp. pubescens (Vasey) Barkworth ACOCP Puccinellia agrostidea Phippsia agrostidea (Sorensen) A.& D. L?ve PHAG2 Puccinellia americana Puccinellia maritima auct. non (Huds.) Parl. [misapplied] PUMA3 Puccinellia andersonii Phippsia andersonii (Swallen) A.& D. L?ve PHAN12 Puccinellia andersonii Puccinellia glabra Swallen PUGL Puccinellia andersonii Puccinellia triflora Swallen PUTR Puccinellia angustata Phippsia angustata (R. Br.) A.& D. L?ve PHAN13 Puccinellia angustata Puccinellia contracta (Lange) Sorensen PUCO2 Puccinellia arctica Phippsia arctica (Hook.) A.& D. L?ve PHAR8 Puccinellia arctica Phippsia borealis (Swallen) A.& D. L?ve PHBO7 Puccinellia arctica Puccinellia borealis Swallen PUBO Puccinellia deschampsioides Phippsia deschampsioides (Sorensen) A.& D. L?ve PHDE23 Puccinellia distans ssp. borealis Phippsia nutkaensis (J. Presl) A.& D. L?ve ssp. borealis (Holmb.) A.& D. L?ve PHNUB Puccinellia distans ssp. borealis Phippsia sibirica (Holmb.) A.& D. L?ve PHSI5 Puccinellia distans ssp. borealis Puccinellia coarctata Fern. & Weatherby PUCO Puccinellia distans ssp. borealis Puccinellia coarctata Fern. & Weatherby var. pseudofasciculata Sorensen PUCOP Puccinellia distans ssp. borealis Puccinellia distans (Jacq.) Parl. var. angustifolia (Blytt) Holmb. PUDIA Puccinellia distans ssp. borealis Puccinellia sibirica Holmb. PUSI2 Puccinellia distans ssp. distans Poa distans Jacq. PODI11 Puccinellia distans ssp. distans Puccinellia distans (Jacq.) Parl. var. tenuis (Uechtr.) Fern. & Weatherby PUDIT Puccinellia distans ssp. distans Puccinellia retroflexa (W. Curtis) Holmb. PURE Puccinellia distans ssp. distans Puccinellia suksdorfii St. John PUSU3 Puccinellia distans ssp. hauptiana Puccinellia hauptiana (Trin. ex Krecz.) Kitagawa PUHA Puccinellia fasciculata Glyceria borreri (Bab.) Bab. GLBO2 Puccinellia fasciculata Puccinellia borreri (Bab.) Hayek PUBO2 Puccinellia interior Phippsia interior (Sorensen) A.& D. L?ve PHIN16 Puccinellia laurentiana Phippsia laurentiana (Fern. & Weatherby) A.& D. L?ve PHLA30 Puccinellia maritima Glyceria maritima (Huds.) Wahlenb. GLMA6 Puccinellia nutkaensis Phippsia nutkaensis (J. Presl) A.& D. L?ve PHNU2 Puccinellia nutkaensis Puccinellia grandis Swallen PUGR Puccinellia nuttalliana Puccinellia airoides (Nutt.) S. Wats. & Coult. PUAI Puccinellia nuttalliana Puccinellia cusickii Weatherby PUCU Puccinellia phryganodes ssp. geniculata Puccinellia geniculata Krecz. PUGE Puccinellia phryganodes ssp. phryganodes Phippsia phryganodes (Trin.) A.& D. L?ve PHPH5 Puccinellia phryganodes ssp. phryganodes Poa phryganodes Trin. POPH3 Puccinellia pumila Puccinellia kurilensis auct. non (Takeda) Honda p.p. [misapplied] PUKU Puccinellia rupestris Glyceria rupestris (With.) E.S. Marshall GLRU Puccinellia sublaevis Puccinellia kamtschatica Holmb. var. sublaevis Holmb. PUKAS Puccinellia tenella ssp. alaskana Phippsia langeana (Berlin) A.& D. L?ve ssp. alaskana (Scribn. & Merr.) A.& D. L?ve PHLAA Puccinellia tenella ssp. alaskana Puccinellia alaskana Scribn. & Merr. PUAL Puccinellia tenella ssp. alaskana Puccinellia kurilensis auct. non (Takeda) Honda p.p. [misapplied] PUKU Puccinellia tenella ssp. alaskana Puccinellia langeana (Berlin) Sorensen ex Hult?n ssp. alaskana (Scribn. & Merr.) Sorensen PULAA Puccinellia tenella ssp. alaskana Puccinellia paupercula (Holmb.) Fern. & Weatherby var. alaskana (Scribn. & Merr.) Fern. & Weatherby PUPAA Puccinellia tenella ssp. alaskana Puccinellia pumila auct. non (Vasey) A.S. Hitchc. [misapplied] PUPU Puccinellia tenella ssp. langeana Phippsia langeana (Berlin) A.& D. L?ve PHLA14 Puccinellia tenella ssp. langeana Puccinellia distans (Jacq.) Parl. var. minor (S. Wats.) Boivin PUDIM Puccinellia tenella ssp. langeana Puccinellia langeana (Berlin) Sorensen ex Hult PULA Puccinellia tenella ssp. langeana Puccinellia longiglumis Fern. & Weatherby PULO2 Puccinellia tenella ssp. langeana Puccinellia paupercula (Holmb.) Fern. & Weatherby var. longiglumis Fern. & Weatherby PUPAL Puccinellia tenella ssp. langeana Puccinellia paupercula auct. non (Holmb.) Fern. & Weatherby [misapplied] PUPA4 Puccinellia tenella ssp. langeana Puccinellia pumila (Vasey) A.S. Hitchc. var. fernaldii Hult PUPUF Puccinellia tenella ssp. tenella Glyceria tenella Lange GLTE4 Puccinellia tenella ssp. tenella Phippsia langeana (Berlin) A.& D. L?ve ssp. asiatica (Sorensen) A.& D. L?ve PHLAA2 Puccinellia tenella ssp. tenella Phippsia tenella (Lange) A.& D. L?ve PHTE11 Puccinellia tenella ssp. tenella Puccinellia langeana (Berlin) Sorensen ex Hult?n ssp. asiatica Sorensen PULAA2 Puccinellia vaginata Phippsia vaginata (Lange) A.& D. L?ve PHVA6 Puccinellia vaginata Puccinellia vaginata (Lange) Fern. & Weatherby var. elegans Sorensen PUVAE2 Puccinellia vaginata Puccinellia vaginata (Lange) Fern. & Weatherby var. paradoxa Sorensen PUVAP2 Puccinellia vahliana Colpodium vahlianum (Liebm.) Nevski COVA Puccinellia vahliana Phippsia vahliana (Liebm.) A.& D. L?ve PHVA7 Puccinellia wrightii Colpodium wrightii Scribn. & Merr. COWR Puccinellia wrightii Phippsia wrightii (Scribn. & Merr.) A.& D. L?ve PHWR4 puffsheath dropseed Sporobolus neglectus Nash SPNE2 pullup muhly Muhlenbergia filiformis (Thurb. ex S. Wats.) Rydb. MUFI2 Pumpelly's brome Bromus inermis Leyss. ssp. pumpellianus (Scribn.) Wagnon BRINP Pumpelly's brome Bromus inermis Leyss. ssp. pumpellianus (Scribn.) Wagnon var. arcticus (Shear ex Scribn. & Merr.) Wagnon BRINA Pumpelly's brome Bromus inermis Leyss. ssp. pumpellianus (Scribn.) Wagnon var. pumpellianus (Scribn.) C.L. Hitchc. BRINP5 puntingpole bamboo Bambusa tuldoides Munro BATU2 purple bluestem Andropogon glaucopsis Ell. ANGL10 purple dropseed Sporobolus purpurascens (Sw.) Hamilton SPPU3 purple false brome Brachypodium distachyon (L.) Beauv. BRDI2 purple false oat Trisetum melicoides (Michx.) Vasey ex Scribn. TRME3 purple grama Bouteloua radicosa (Fourn.) Griffiths BORA Purple Japanese Silver grass Miscanthus sinensis Anderson ssp. condensatus (Hackel) T. Koyama MISIC purple lovegrass Eragrostis spectabilis (Pursh) Steud. ERSP purple moorgrass Molinia caerulea (L.) Moench MOCA2 purple muhly Muhlenbergia rigida (Kunth) Trin. MURI3 purple needlegrass Nassella pulchra (A.S. Hitchc.) Barkworth NAPU4 purple needlegrass Triraphis mollis R. Br. TRMO20 purple oniongrass Melica spectabilis Scribn. MESP purple pampas grass Cortaderia jubata (Lem.) Stapf COJU2 purple reedgrass Calamagrostis purpurascens R. Br. CAPU purple reedgrass Calamagrostis purpurascens R. Br. var. purpurascens CAPUP7 purple sandgrass Triplasis purpurea (Walt.) Chapman TRPU4 purple silkyscale Anthaenantia rufa (Nutt.) J.A. Schultes ANRU purple smallreed Calamagrostis canescens (Weber ex F. H. Wigg.) Roth CACA80 purple speargrass Piptochaetium stipoides (Trin. & Rupr.) Arech. PIST7 purple threeawn Aristida purpurea Nutt. ARPU9 purple threeawn Aristida purpurea Nutt. var. perplexa Allred & Vald?s-Reyna ARPUP9 purple threeawn Aristida purpurea Nutt. var. purpurea ARPUP6 purple wildrye ?Elyleymus aristatus (Merr.) Barkworth & D.R. Dewey [Elymus elymoides ? Leymus triticoides] ELAR6 purpletop tridens Tridens flavus (L.) A.S. Hitchc. TRFL2 purpletop tridens Tridens flavus (L.) A.S. Hitchc. var. flavus TRFLF Purpus's carpetgrass Axonopus purpusii (Mez) Chase AXPU pygmy bamboo Arundinaria pygmaea (Miq.) Asch. & Graebn. ARPY8 pyp grass Ehrharta villosa Schult. f. EHVI2 quackgrass Elymus repens (L.) Gould ELRE4 quakinggrass Briza humilis M. Bieb. BRHU4 quakinggrass Briza L. BRIZA rabbitsfoot grass Polypogon Desf. POLYP2 rabo de gato Arundinella hispida (Humb. & Bonpl. ex Willd.) Kuntze ARHI10 rabo de gato Arundinella Raddi ARUND3 radiate fingergrass Chloris radiata (L.) Sw. CHRA rat-tail fescue Vulpia myuros (L.) K.C. Gmel. VUMY rat-tail grass Sporobolus indicus (L.) R. Br. var. capensis Engelm. SPINC3 rattail grass Sehima nervosa (Rottler) Stapf SENE7 rattlesnake brome Bromus briziformis Fisch. & C.A. Mey. BRBR5 rattlesnake mannagrass Glyceria canadensis (Michx.) Trin. GLCA Ravenel's rosette grass Dichanthelium ravenelii (Scribn. & Merr.) Gould DIRA ravennagrass Saccharum ravennae (L.) L. SARA3 ravine fescue Festuca sororia Piper FESO red brome Bromus rubens L. BRRU2 red false beardgrass Chrysopogon fulvus (Spreng.) Chiov. CHFU red fescue Festuca rubra L. FERU2 red fescue Festuca rubra L. ssp. arenaria (Osbeck) F. Aresch. FERUA3 red fescue Festuca rubra L. ssp. aucta (Krecz. & Bobr.) Hult FERUA red fescue Festuca rubra L. ssp. rubra FERUR2 red fescue Festuca rubra L. ssp. secunda (J. Presl) Pavlick FERUS red fescue Festuca rubra L. ssp. vallicola (Rydb.) Pavlick FERUV red grama Bouteloua trifida Thurb. BOTR2 red grama Bouteloua trifida Thurb. var. burkii (Scribn. ex S. Wats.) Vasey ex L.H. Dewey BOTRB red grama Bouteloua trifida Thurb. var. trifida BOTRT red lovegrass Eragrostis secundiflora J. Presl ERSE red lovegrass Eragrostis secundiflora J. Presl ssp. oxylepis (Torr.) S.D. Koch ERSEO red lovegrass Eragrostis secundiflora J. Presl ssp. secundiflora J. Presl [excluded] ERSES3 red rice Oryza punctata Kotzchy ex Steud. ORPU13 reddish bamboo Phyllostachys rubromarginata McClure PHRU7 redtop Agrostis gigantea Roth AGGI2 redtop panicgrass Panicum rigidulum Bosc ex Nees PARI4 redtop panicgrass Panicum rigidulum Bosc ex Nees var. elongatum (Pursh) Lelong PARIE2 redtop panicgrass Panicum rigidulum Bosc ex Nees var. pubescens (Vasey) Lelong PARIP redtop panicgrass Panicum rigidulum Bosc ex Nees var. rigidulum PARIR reed Phragmites Adans. PHRAG reed canarygrass Phalaris arundinacea L. PHAR3 reed mannagrass Glyceria maxima (Hartman) Holmb. GLMA3 reedgrass Calamagrostis Adans. CALAM reimar grass Reimarochloa A.S. Hitchc. REIMA Reimarochloa oligostachya Reimaria oligostachya Munro ex Benth. REOL2 relaxgrass Aegopogon cenchroides Humb. & Bonpl. AECE relaxgrass Aegopogon Humb. & Bonpl. ex Willd. AEGOP2 Rendle's meadow foxtail Alopecurus rendlei Eig ALRE3 rescuegrass Bromus catharticus Vahl BRCA6 Reverchon's bristlegrass Setaria reverchonii (Vasey) Pilger SERE3 Reverchon's bristlegrass Setaria reverchonii (Vasey) Pilger ssp. reverchonii SERER2 rhizome bluegrass Poa rhizomata A.S. Hitchc. PORH Rhodes grass Chloris gayana Kunth CHGA2 ribbed murainagrass Ischaemum rugosum Salisb. ISRU ribbed paspalum Paspalum malacophyllum Trin. PAMA6 rice Oryza L. ORYZA rice Oryza sativa L. ORSA rice barnyardgrass Echinochloa phyllopogon (Stapf) K.-Pol. ECPH rice cutgrass Leersia oryzoides (L.) Sw. LEOR rice grass Jarava Ruiz & Pav?n JARAV ricegrass ?Achnella Barkworth ACHNE ricegrass Oryzopsis holciformis (M. Bieb.) Hackel ORHO2 ricegrass Oryzopsis Michx. ORYZO ricegrass Piptatherum Beauv. PIPTA2 Richardson's fescue Festuca rubra L. ssp. arctica (Hack.) Govor. FERUA6 Richardson's needlegrass Achnatherum richardsonii (Link) Barkworth ACRI8 ridgetop bloodgrass Isachne distichophylla Munro ex Hbd. ISDI ring muhly Muhlenbergia torreyi (Kunth) A.S. Hitchc. ex Bush MUTO2 Rio Grande bristlegrass Setaria reverchonii (Vasey) Pilger ssp. ramiseta (Scribn.) W.E. Fox SERER Rio Grande lovegrass Eragrostis palmeri S. Wats. ERPA ripgut brome Bromus diandrus Roth BRDI3 ripgut brome Bromus diandrus Roth ssp. diandrus BRDID2 ripgut brome Bromus diandrus Roth ssp. rigidus (Roth) Lainz BRDIR riverbank wildrye Elymus riparius Wieg. ELRI rivergrass Scolochloa Link SCOLO rivet wheat Triticum turgidum L. TRTU2 roadside bristlegrass Setaria pradana (L?on ex A.S. Hitchc.) L?on SEPR roadside brome Bromus stamineus Desv. BRST3 roadside crabgrass Digitaria similis Beetle ex Gould DISI2 roadside windmill grass Chloris sagraeana A. Rich. CHSA3 robies cocksfoot Tetrachne dregei Nees TEDR2 robust cane Saccharum robustum Brandes & Jesw. ex Grassl f. [excluded] SARO11 rock melicgrass Melica stricta Boland. MEST rock melicgrass Melica stricta Boland. var. albicaulis Boyle MESTA rock melicgrass Melica stricta Boland. var. stricta MESTS rock muhly Muhlenbergia sobolifera (Muhl. ex Willd.) Trin. MUSO rock panicgrass Panicum beecheyi Hook. & Arn. PABE rock paspalum Paspalum rupestre Trin. PARU Rocky Mountain fescue Festuca saximontana Rydb. FESA Rocky Mountain fescue Festuca saximontana Rydb. var. purpusiana (St.-Yves) Frederiksen & Pavlick FESAP Rocky Mountain fescue Festuca saximontana Rydb. var. saximontana FESAS Roemer's fescue Festuca idahoensis Elmer ssp. roemeri (Pavlick) S. Aiken FEIDR2 rose Natal grass Melinis repens (Willd.) Zizka MERE9 rosette grass Dichanthelium (A.S. Hitchc. & Chase) Gould DICHA2 rosha grass Cymbopogon martinii (Roxb.) J. F. Watson CYMA15 Ross's bentgrass Agrostis rossiae Vasey AGRO4 Rostraria cristata Festuca cristata L. FECR Rostraria cristata Koeleria gerardii (Vill.) Shinners KOGE Rostraria cristata Koeleria phleoides (Vill.) Pers. KOPH Rostraria cristata Lophochloa cristata (L.) Hyl. LOCR2 Rothrock's grama Bouteloua rothrockii Vasey BORO2 Rottboellia cochinchinensis Aegilops exaltata L. AEEX2 Rottboellia cochinchinensis Manisuris exaltata (L.) Kuntze MAEX3 Rottboellia cochinchinensis Rottboellia exaltata (L.) L. f. ROEX2 Rottboellia selloana Coelorachis selloana (Hack.) A. Camus COSE17 Rottboellia selloana Manisuris selloana (Hack.) Kuntze MASE6 rough barnyardgrass Echinochloa muricata (Beauv.) Fern. ECMU2 rough barnyardgrass Echinochloa muricata (Beauv.) Fern. var. microstachya Wieg. ECMUM rough barnyardgrass Echinochloa muricata (Beauv.) Fern. var. muricata ECMUM2 rough bentgrass Agrostis scabra Willd. AGSC5 rough bluegrass Poa trivialis L. POTR2 rough dropseed Sporobolus clandestinus (Biehler) A.S. Hitchc. SPCL rough fescue Festuca campestris Rydb. FECA4 rough panicgrass Dichanthelium leucothrix (Nash) Freckmann DILE4 rough sprangletop Leptochloa scabra Nees LESC roughglume bushy bluestem Andropogon glomeratus (Walt.) B.S.P. var. scabriglumis C. Campbell ANGLS roughhair rosette grass Dichanthelium strigosum (Muhl. ex Ell.) Freckmann DIST5 roughhair rosette grass Dichanthelium strigosum (Muhl. ex Ell.) Freckmann var. glabrescens (Griseb.) Freckmann DISTG roughhair rosette grass Dichanthelium strigosum (Muhl. ex Ell.) Freckmann var. leucoblepharis (Trin.) Freckmann DISTL roughhair rosette grass Dichanthelium strigosum (Muhl. ex Ell.) Freckmann var. strigosum DISTS roughleaf ricegrass Oryzopsis asperifolia Michx. ORAS roundseed panicgrass Dichanthelium sphaerocarpon (Ell.) Gould DISP2 roundseed panicgrass Dichanthelium sphaerocarpon (Ell.) Gould var. isophyllum (Scribn.) Gould & C.A. Clark DISPI roundseed panicgrass Dichanthelium sphaerocarpon (Ell.) Gould var. sphaerocarpon DISPS3 RS wheatgrass Elymus hoffmannii K.B. Jensen & K.H. Asay ELHO3 running giant bamboo Phyllostachys vivax McClure PHVI19 running mountaingrass Oplismenus compositus (L.) Beauv. OPCO2 ruscus-leaf bamboo Shibataea kumasaca (Zoll. ex Steud.) Makino SHKU Russian wheatgrass Thinopyrum junceiforme (A.& D. L?ve) A. L?ve THJU3 Russian wildrye Psathyrostachys juncea (Fisch.) Nevski PSJU3 rustyseed paspalum Paspalum langei (Fourn.) Nash PALA11 Rydberg's wildrye Elymus vulpinus Rydb. ELVU rye Secale L. SECAL rye brome Bromus secalinus L. BRSE rye brome Bromus secalinus L. var. secalinus BRSES ryegrass Lolium L. LOLIU Rytidosperma pilosum Danthonia pilosa R. Br. DAPI Rytidosperma semiannulare Arundo semiannularis Labill. ARSE10 Rytidosperma semiannulare Danthonia semiannularis (Labill.) R. Br. DASE Rytidosperma unarede Danthonia unarede Raoul DAUN2 s-curve threeawn Aristida ramosissima Engelm. ex Gray ARRA2 sabaigrass Eulaliopsis binata (Retz.) C. E. Hubb. EUBI10 sabaigrass Eulaliopsis Honda EULAL2 Saccharum alopecuroides Erianthus alopecuroides (L.) Ell. ERAL2 Saccharum alopecuroides Erianthus alopecuroides (L.) Ell. var. hirsutis Nash ERALH Saccharum alopecuroides Erianthus divaricatus (L.) A.S. Hitchc. ERDI11 Saccharum alopecuroides Erianthus tracyi Nash ERTR17 Saccharum alopecuroides Saccharum alopecuroidum (L.) Nutt. [orthographic variant] SAAL9 Saccharum baldwinii Erianthus strictus Ell. ERST2 Saccharum baldwinii Saccharum strictum (Ell.) Ell. ex Nutt. SAST7 Saccharum bengalense Saccharum ciliare Anderss. SACI3 Saccharum brevibarbe var. brevibarbe Erianthus brevibarbis Michx. ERBR2 Saccharum brevibarbe var. contortum Erianthus contortus Ell. ERCO2 Saccharum brevibarbe var. contortum Saccharum contortum (Ell.) Nutt. SACO26 Saccharum coarctatum Erianthus coarctatus Fern. ERCO35 Saccharum coarctatum Erianthus coarctatus Fern. var. elliottianus Fern. ERCOE2 Saccharum giganteum Erianthus giganteus (Walt.) Beauv. ERGI Saccharum giganteum Erianthus giganteus (Walt.) Beauv. var. compactus (Nash) Fern. ERGIC3 Saccharum giganteum Erianthus laxus Nash ERLA16 Saccharum giganteum Erianthus saccharoides Michx. ERSA15 Saccharum ravennae Erianthus ravennae (L.) Beauv. ERRA Saccharum ravennae Erianthus ravennae (L.) Beauv. var. purpurascens (Anderss.) Hack. ERRAP2 Saccharum spontaneum ssp. aegyptiacum Saccharum biflorum Forssk. SABI7 Sacciolepis indica Aira indica L. AIIN Sacciolepis striata Holcus striatus L. HOST4 Sacciolepis striata Panicum aquaticum Bosc ex Spreng., non Poir. PAAQ Sacramento Orcutt grass Orcuttia viscida (Hoover) J. Reeder ORVI2 saline wildrye Leymus salinus (M.E. Jones) A. L?ve LESA4 saline wildrye Leymus salinus (M.E. Jones) A. L?ve ssp. salinus LESAS Salmon wildrye Leymus salinus (M.E. Jones) A. L?ve ssp. salmonis (C.L. Hitchc.) Atkins LESAS2 saltgrass Distichlis Raf. DISTI saltgrass Distichlis spicata (L.) Greene DISP saltmarsh alkaligrass Puccinellia fasciculata (Torr.) Bickn. PUFA saltmarsh fingergrass Eustachys glauca Chapman EUGL5 saltmeadow cordgrass Spartina patens (Ait.) Muhl. SPPA San Bernardino bluegrass Poa atropurpurea Scribn. POAT San Diego needlegrass Achnatherum diegoense (Swallen) Barkworth ACDI10 San Francisco bluegrass Poa unilateralis Scribn. POUN San Francisco bluegrass Poa unilateralis Scribn. ssp. unilateralis POUNU San Joaquin Valley Orcutt grass Orcuttia inaequalis Hoover ORIN sand bluestem Andropogon hallii Hack. ANHA sand cordgrass Spartina bakeri Merr. SPBA sand crabgrass Digitaria arenicola (Swallen) Beetle DIAR7 sand dropseed Sporobolus cryptandrus (Torr.) Gray SPCR sand fescue Festuca ammobia Pavlick FEAM5 sand lovegrass Eragrostis trichodes (Nutt.) Wood ERTR3 sand muhly Muhlenbergia arenicola Buckl. MUAR2 sand ryegrass Leymus arenarius (L.) Hochst. LEAR11 sand timothy Phleum arenarium L. PHAR4 sandbar lovegrass Eragrostis frankii C.A. Mey. ex Steud. ERFR Sandberg bluegrass Poa secunda J. Presl POSE sandbur Cenchrus L. CENCH sanddune sandbur Cenchrus tribuloides L. CETR sandgrass Mibora Adans. MIBOR sandgrass Triplasis Beauv. TRIPL2 sandhill muhly Muhlenbergia pungens Thurb. MUPU2 sandreed Calamovilfa (Gray) Hack. ex Scribn. & Southworth CALAM2 sandysoil Indiangrass Sorghastrum setosum (Griseb.) A.S. Hitchc. SOSE6 Sanibel Island lovegrass Eragrostis pectinacea (Michx.) Nees ex Steud. var. tracyi (A.S. Hitchc.) P.M. Peterson ERPET3 Santa Rita Mountain grama Bouteloua eludens Griffiths BOEL Santa Rita threeawn Aristida californica Thurb. ex S. Wats. var. glabrata Vasey ARCAG Sarita rosette grass Dichanthelium nodatum (A.S. Hitchc. & Chase) Gould DINO satintail Imperata Cirillo IMPER savannah panicgrass Panicum stenodes Griseb. PAST savannah-panicgrass Phanopyrum (Raf.) Nash PHANO savannah-panicgrass Phanopyrum gymnocarpon (Ell.) Nash PHGY2 scattered paspalum Paspalum conspersum Schrad. PACO50 Schaack's barley ?Elyhordeum schaackianum (Bowden) Bowden [Elymus hirsutus ? Hordeum jubatum] ELSC2 Schedonorus ?festucaceus ?Festulolium loliaceum (Huds.) Fourn. FELO3 Schedonorus ?festucaceus Lolium ?festucaceum Link LOFE5 Schedonorus giganteus Bromus giganteus L. BRGI Schedonorus giganteus Festuca gigantea (L.) Vill. FEGI Schedonorus giganteus Lolium giganteum (L.) S.J. Darbyshire LOGI2 Schedonorus phoenix Festuca arundinacea Schreb. FEAR3 Schedonorus phoenix Festuca elatior L. ssp. arundinacea (Schreb.) Hack. FEELA Schedonorus phoenix Festuca elatior L. var. arundinacea (Schreb.) C.F.H. Wimmer FEELA2 Schedonorus phoenix Festuca fenas Lag. FEFE2 Schedonorus phoenix Festuca uechtritziana Wiesb. FEUE Schedonorus phoenix Lolium arundinaceum (Schreb.) S.J. Darbyshire LOAR10 Schedonorus phoenix Schedonorus arundinaceus (Schreb.) Dumort. nom. illeg. SCAR7 Schedonorus pratensis Festuca elatior L. p.p. FEEL Schedonorus pratensis Festuca pratensis Huds. FEPR Schedonorus pratensis Lolium pratense (Huds.) S.J. Darbyshire LOPR7 Schiffner's panicgrass Panicum schiffneri Hack. PASC2 Schismus barbatus Festuca barbata Loefl. ex L. FEBA2 Schismus barbatus Schismus calycinus (Loefl.) K. Koch SCCA22 Schizachne purpurascens Avena torreyi Nash AVTO Schizachne purpurascens Melica purpurascens (Torr.) A.S. Hitchc. MEPU11 Schizachne purpurascens Schizachne purpurascens (Torr.) Swallen var. pubescens Dore SCPUP4 Schizachne purpurascens Schizachne stricta (Michx.) Hult SCST7 Schizachne purpurascens Trisetum purpurascens Torr. TRPU11 Schizachyrium brevifolium Andropogon brevifolius Sw. ANBR12 Schizachyrium cirratum Andropogon cirratus Hack. ANCI Schizachyrium condensatum Andropogon condensatus Kunth ANCO15 Schizachyrium littorale Andropogon littoralis Nash ANLI5 Schizachyrium littorale Andropogon scoparius Michx. var. littoralis (Nash) A.S. Hitchc. ANSCL Schizachyrium littorale Schizachyrium scoparium (Michx.) Nash ssp. littorale (Nash) Gandhi & Smeins SCSCL2 Schizachyrium littorale Schizachyrium scoparium (Michx.) Nash var. littorale (Nash) Gould SCSCL Schizachyrium maritimum Andropogon maritimus Chapman ANMA10 Schizachyrium microstachyum Andropogon microstachyus Desv. ex Ham. ANMI10 Schizachyrium niveum Andropogon niveus Swallen ANNI4 Schizachyrium rhizomatum Andropogon rhizomatus Swallen ANRH4 Schizachyrium sanguineum var. hirtiflorum Andropogon domingensis (Spreng. ex J.A. Schultes) F.T. Hubbard, non Steud. ANDO3 Schizachyrium sanguineum var. hirtiflorum Andropogon hirtiflorus (Nees) Kunth ANHI4 Schizachyrium sanguineum var. hirtiflorum Andropogon hirtiflorus (Nees) Kunth var. brevipedicellatus Beal ANHIB Schizachyrium sanguineum var. hirtiflorum Andropogon hirtiflorus (Nees) Kunth var. feensis (Fourn.) Hack. ANHIF2 Schizachyrium sanguineum var. hirtiflorum Andropogon hirtiflorus (Nees) Kunth var. oligostachyus (Chapman) Hack. ANHIO Schizachyrium sanguineum var. hirtiflorum Andropogon oligostachyus Chapman ANOL Schizachyrium sanguineum var. hirtiflorum Schizachyrium domingense (Spreng. ex J.A. Schultes) Nash SCDO2 Schizachyrium sanguineum var. hirtiflorum Schizachyrium feense (Fourn.) A. Camus SCFE5 Schizachyrium sanguineum var. hirtiflorum Schizachyrium hirtiflorum Nees SCHI4 Schizachyrium sanguineum var. hirtiflorum Schizachyrium sanguineum (Retz.) Alston var. brevipedicellatum (Beal) Hatch SCSAB Schizachyrium sanguineum var. hirtiflorum Schizachyrium sanguineum (Retz.) Alston var. oligostachyum (Chapman) Hatch SCSAO Schizachyrium sanguineum var. sanguineum Andropogon semiberbis (Nees) Kunth ANSE8 Schizachyrium sanguineum var. sanguineum Rottboellia sanguinea Retz. ROSA4 Schizachyrium sanguineum var. sanguineum Schizachyrium semiberbe Nees SCSE7 Schizachyrium scoparium var. divergens Andropogon divergens (Hack.) Anderss. ex A.S. Hitchc. ANDI8 Schizachyrium scoparium var. divergens Andropogon scoparius Michx. var. divergens Hack. ANSCD Schizachyrium scoparium var. divergens Andropogon scoparius Michx. var. virilis Shinners ANSCV Schizachyrium scoparium var. divergens Schizachyrium scoparium (Michx.) Nash ssp. divergens (Hack.) Gandhi & Smeins SCSCD2 Schizachyrium scoparium var. divergens Schizachyrium scoparium (Michx.) Nash var. virile (Shinners) Gould SCSCV Schizachyrium scoparium var. scoparium Andropogon praematurus Fern. ANPR Schizachyrium scoparium var. scoparium Andropogon scoparius Michx. ANSC10 Schizachyrium scoparium var. scoparium Andropogon scoparius Michx. var. ducis Fern. & Grisc. ANSCD2 Schizachyrium scoparium var. scoparium Andropogon scoparius Michx. var. frequens F.T. Hubbard ANSCF Schizachyrium scoparium var. scoparium Andropogon scoparius Michx. var. neomexicanus (Nash) A.S. Hitchc. ANSCN2 Schizachyrium scoparium var. scoparium Andropogon scoparius Michx. var. polycladus Scribn. & Ball ANSCP Schizachyrium scoparium var. scoparium Andropogon scoparius Michx. var. septentrionalis Fern. & Grisc. ANSCS Schizachyrium scoparium var. scoparium Schizachyrium praematurum (Fern.) C.F. Reed SCPR3 Schizachyrium scoparium var. scoparium Schizachyrium scoparium (Michx.) Nash ssp. neomexicanum (Nash) Gandhi & Smeins SCSCN2 Schizachyrium scoparium var. scoparium Schizachyrium scoparium (Michx.) Nash var. frequens (F.T. Hubbard) Gould SCSCF Schizachyrium scoparium var. scoparium Schizachyrium scoparium (Michx.) Nash var. neomexicanum (Nash) Gould SCSCN Schizachyrium scoparium var. scoparium Schizachyrium scoparium (Michx.) Nash var. polycladum (Scribn. & Ball) C.F. Reed SCSCP Schizachyrium scoparium var. stoloniferum Andropogon stolonifer (Nash) A.S. Hitchc. ANST5 Schizachyrium scoparium var. stoloniferum Schizachyrium stoloniferum Nash SCST2 Schizachyrium scoparium var. stoloniferum Schizachyrium stoloniferum Nash var. wolfei DeSelm SCSTW Schizachyrium spadiceum Andropogon spadiceus Swallen ANSP8 Schizachyrium tenerum Andropogon tener (Nees) Kunth ANTE5 Schmidtia pappophoroides Antoschmidtia bulbosa (Stapf) Peter ANBU4 Sclerochloa dura Cynosurus durus L. CYDU4 Scleropogon brevifolius Scleropogon longisetus Beetle SCLO3 Scolochloa festucacea Arundo festucacea Willd. ARFE7 Scolochloa festucacea Fluminia festucacea (Willd.) A.S. Hitchc. FLFE scratchgrass Muhlenbergia asperifolia (Nees & Meyen ex Trin.) Parodi MUAS screwleaf muhly Muhlenbergia straminea A.S. Hitchc. MUST Scribner needlegrass Achnatherum scribneri (Vasey) Barkworth ACSC11 Scribner's grass Scribneria bolanderi (Thurb.) Hack. SCBO Scribner's grass Scribneria Hack. SCRIB Scribner's rosette grass Dichanthelium oligosanthes (J.A. Schultes) Gould var. scribnerianum (Nash) Gould DIOLS scrobic Paspalum scrobiculatum L. var. bispicatum Hack. PASCB sea-fern grass Catapodium marinum (L.) C. E. Hubb. CAMA54 seaoats Uniola L. UNIOL seaoats Uniola paniculata L. UNPA Sears's goatgrass Aegilops searsii M. Feldman & M. Kislev AESE3 seashore bentgrass Agrostis pallens Trin. AGPA8 seashore bluegrass Poa macrantha Vasey POMA26 seashore dropseed Sporobolus virginicus (L.) Kunth SPVI3 seashore paspalum Paspalum vaginatum Sw. PAVA seaside alkaligrass Puccinellia maritima (Huds.) Parl. PUMA seaside barley Hordeum marinum Huds. HOMA2 seaside barley Hordeum marinum Huds. ssp. marinum HOMAM seaside brome Bromus maritimus (Piper) A.S. Hitchc. BRMA5 seaside threeawn Aristida tuberculosa Nutt. ARTU Secale cereale Secale montanum Guss. SEMO Secale cereale Secale strictum (K. Presl) K. Presl SEST10 Secale cereale Triticum cereale (L.) Salisb. TRCE5 seep muhly Muhlenbergia reverchonii Vasey & Scribn. MURE2 Sehima nervosa Sehima nervosum (Rottl.) Stapf [orthographic variant] SENE10 semaphoregrass Pleuropogon R. Br. PLEUR2 serillo dulce Schizachyrium brevifolium (Sw.) Nees ex B?se SCBR4 serpentine reedgrass Calamagrostis ophitidis (J.T. Howell) Nygren CAOP2 serrated tussock Nassella trichotoma (Nees) Hack. NATR3 Sesleria autumnalis Sesleria elongata Host SEEL4 Sesleria cylindrica Sesleria argentea auct. SEAR14 Setaria adhaerens Panicum adhaerens Forssk. PAAD3 Setaria adhaerens Pennisetum respiciens A. Rich. PERE14 Setaria adhaerens Setaria verticillata (L.) Beauv. var. respiciens (A. Rich.) A. Braun SEVER2 Setaria barbata Chaetochloa barbata (Lam.) A.S. Hitchc. & Chase CHBA9 Setaria barbata Panicum barbatum Lam. PABA5 Setaria brigalow Paspalidium caespitosum C. E. Hubb. PACA28 Setaria corrugata Chaetochloa corrugata (Ell.) Scribn. CHCO20 Setaria corrugata Chaetochloa hispida Scribn. & Merr. CHHI10 Setaria corrugata Panicum corrugatum Ell. PACO27 Setaria incrassata Setaria gerrardii Stapf SEGE3 Setaria incrassata Setaria holstii R. A. W. Herrm. SEHO5 Setaria incrassata Setaria perberbis Stapf ex de Wit SEPE7 Setaria incrassata Setaria phanerococca Stapf SEPH2 Setaria incrassata Setaria woodii Hack. SEWO3 Setaria italica Chaetochloa italica (L.) Scribn. CHIT Setaria italica Panicum italicum L. PAIT Setaria italica Setaria italica (L.) Beauv. subvar. metzgeri (Koern.) F.T. Hubbard SEITM3 Setaria italica Setaria italica (L.) Beauv. var. metzgeri (Koern.) J?v. SEITM Setaria italica Setaria italica (L.) Beauv. var. stramineofructa (F.T. Hubbard) Bailey SEITS Setaria lachnea Setaria argentina R. A. W. Herrm. SEAR15 Setaria leucopila Chaetochloa leucopila Scribn. & Merr. CHLE9 Setaria macrosperma Chaetochloa macrosperma Scribn. & Merr. CHMA8 Setaria magna Chaetochloa magna (Griseb.) Scribn. CHMA9 Setaria megaphylla Setaria chevalieri Stapf & C. E. Hubb. SECH4 Setaria megaphylla Setaria palmifolia auct. non (Koenig) Stapf [misapplied] SEPA16 Setaria megaphylla Setaria plicatilis (Hochst.) Hack. ex Engl. SEPL8 Setaria nigrirostris Chaetochloa nigrirostris (Nees) Skeels CHNI5 Setaria palmifolia Panicum palmifolium Koenig PAPA18 Setaria parviflora Chaetochloa geniculata (Lam.) Millsp. & Chase CHGE4 Setaria parviflora Chaetochloa imberbis (Poir.) Scribn. CHIM2 Setaria parviflora Panicum geniculatum Lam. PAGE4 Setaria parviflora Setaria geniculata auct. non (Wild.) Beauv. [misapplied] SEGE Setaria parviflora Setaria gracilis Kunth SEGR7 Setaria pradana Panicum pradanum L?on ex A.S. Hitchc. PAPR12 Setaria pumila ssp. pallidefusca Panicum pumilum auct. non Poir. [misapplied] PAPU7 Setaria pumila ssp. pallidefusca Setaria glauca (L.) Beauv. var. pallidefusca (Schumacher) T. Koyama SEGLP2 Setaria pumila ssp. pallidefusca Setaria glauca (L.) Beauv. var. pallidifusca (Schumacher) T. Koyama [orthographic variant] SEGLP Setaria pumila ssp. pallidefusca Setaria pallidefusca (Schumacher) Stapf & C.E. Hubbard SEPA18 Setaria pumila ssp. pallidefusca Setaria pallidifusca (Schumacher) Stapf & C.E. Hubbard [orthographic variant] SEPA82 Setaria pumila ssp. pallidefusca Setaria pumila (Poir.) Roemer & J.A. Schultes ssp. pallidifusca (Schumacher) B.K. Simon [orthographic variant] SEPUP Setaria pumila ssp. pumila Chaetochloa glauca (L.) Scribn. CHGL12 Setaria pumila ssp. pumila Chaetochloa lutescens (Weigel) Stuntz CHLU3 Setaria pumila ssp. pumila Panicum glaucum L. PAGL5 Setaria pumila ssp. pumila Setaria glauca (L.) Beauv. SEGL2 Setaria pumila ssp. pumila Setaria lutescens (Weigel) F.T. Hubbard SELU4 Setaria rariflora Chaetochloa rariflora (Mikan ex Trin.) A.S. Hitchc. & Chase CHRA5 Setaria reverchonii ssp. firmula Panicum firmulum A.S. Hitchc. & Chase PAFI10 Setaria reverchonii ssp. firmula Setaria firmula (A.S. Hitchc. & Chase) Pilger SEFI Setaria reverchonii ssp. ramiseta Panicum ramisetum Scribn. PARA10 Setaria reverchonii ssp. ramiseta Setaria ramiseta (Scribn.) Pilger SERA3 Setaria reverchonii ssp. reverchonii Panicum reverchonii Vasey PARE10 Setaria sagittifolia Cymbosetaria sagittifolia (A. Rich.) Schweick. CYSA7 Setaria scheelei Panicum scheelei Steud. PASC12 Setaria setosa var. leiophylla Setaria leiophylla (Nees) Kunth SELE9 Setaria setosa var. setosa Chaetochloa setosa (Sw.) Scribn. CHSE12 Setaria setosa var. setosa Panicum setosum Sw. PASE10 Setaria sphacelata var. anceps Setaria almaspicata de Wit SEAL11 Setaria sphacelata var. aurea Setaria trinervia Stapf SETR8 Setaria sphacelata var. sphacelata Setaria flabellata Stapf SEFL8 Setaria sphacelata var. sphacelata Setaria perennis Hack. SEPE8 Setaria sphacelata var. splendida Setaria splendida Stapf SESP12 Setaria tenacissima Chaetochloa tenacissima (Schrad.) A.S. Hitchc. & Chase CHTE9 Setaria utowanaea Panicum utowanaeum Scribn. ex Millsp. PAUT3 Setaria verticillata Chaetochloa verticillata (L.) Scribn. CHVE7 Setaria verticillata Panicum verticillatum L. PAVE5 Setaria verticillata Setaria carnei A.S. Hitchc. SECA3 Setaria verticilliformis Panicum verticillatum L. var. ambiguum Guss. PAVEA Setaria verticilliformis Setaria decipiens Schimp. ex Nyman SEDE5 Setaria verticilliformis Setaria gussonei Kergu?len SEGU Setaria verticilliformis Setaria verticillata (L.) Beauv. var. ambigua (Guss.) Parl. SEVEA Setaria verticilliformis Setaria viridis (L.) Beauv. var. ambigua (Guss.) Coss. & Durieu SEVIA Setaria villosissima Chaetochloa villosissima Scribn. & Merr. CHVI12 Setaria viridis var. major Panicum viride L. var. major Gaudin PAVIM Setaria viridis var. major Setaria viridis (L.) Beauv. var. robustaalba Schreib. SEVIR Setaria viridis var. major Setaria viridis (L.) Beauv. var. robustapurpurea Schreib. SEVIR2 Setaria viridis var. viridis Chaetochloa viridis (L.) Scribn. CHVI13 Setaria viridis var. viridis Panicum viride L. PAVI9 Setaria viridis var. viridis Setaria viridis (L.) Beauv. var. breviseta (Doell) A.S. Hitchc. SEVIB Setaria viridis var. viridis Setaria viridis (L.) Beauv. var. weinmannii (Roemer & J.A. Schultes) Borb SEVIW Setaria vulpiseta Chaetochloa vulpiseta (Lam.) A.S. Hitchc. & Chase CHVU2 Setaria vulpiseta Panicum vulpisetum Lam. PAVU shaggy crabgrass Digitaria villosa (Walt.) Pers. DIVI sharp cupgrass Eriochloa leersioides (Munro) Hack. ERLE20 sharpglume brome Bromus mucroglumis Wagnon BRMU4 Shasta panicgrass Dichanthelium ?scoparioides (Ashe) Mohlenbrock (pro sp.) [acuminatum ? oligosanthes] DISC4 sheathed alkaligrass Puccinellia vaginata (Lange) Fern. & Weatherby PUVA sheep fescue Festuca ovina L. FEOV shining alkaligrass Puccinellia lucida Fern. & Weatherby PULU2 shiny wedgescale Sphenopholis nitida (Biehler) Scribn. SPNI shiny woodoats Chasmanthium nitidum (Baldw.) Yates CHNI shore little bluestem Schizachyrium littorale (Nash) Bickn. SCLI11 shoregrass Monanthochloe Engelm. MONAN shoregrass Monanthochloe littoralis Engelm. MOLI short bluegrass Poa abbreviata R. Br. POAB short bluegrass Poa abbreviata R. Br. ssp. abbreviata POABA short muhly Muhlenbergia brevis C.O. Goodding MUBR2 shortawn foxtail Alopecurus aequalis Sobol. ALAE shortawn foxtail Alopecurus aequalis Sobol. var. aequalis ALAEA shortbeard plumegrass Saccharum brevibarbe (Michx.) Pers. SABR18 shortbeard plumegrass Saccharum brevibarbe (Michx.) Pers. var. brevibarbe SABRB5 shortbristle needle and thread Hesperostipa curtiseta (A.S. Hitchc.) Barkworth HECU9 shortbristled needlegrass Achnatherum brachychaetum (Godr.) Barkworth ACBR5 shortcoal bluegrass Poa pseudoabbreviata Rosh. POPS shorthair reedgrass Calamagrostis breweri Thurb. CABR shorthusk Brachyelytrum Beauv. BRACH2 shortleaf crabgrass Digitaria hitchcockii (Chase) Stuckert DIHI3 shortleaf skeletongrass Gymnopogon brevifolius Trin. GYBR shortleaf woollygrass Erioneuron avenaceum (Kunth) Tateoka ERAV shortspike bluestem Andropogon brachystachyus Chapman ANBR2 shortspike canarygrass Phalaris brachystachys Link PHBR3 shortspike windmill grass Chloris ?subdolichostachya Muell. (pro sp.) [cucullata ? verticillata] CHSU3 Shoshone ricegrass Piptatherum shoshoneanum (Curto & D. Henderson) Kartesz, comb. nov. ined. PISH Siberian melicgrass Melica altissima L. MEAL Siberian oatgrass Trisetum sibiricum Rupr. TRSI2 Siberian oatgrass Trisetum sibiricum Rupr. ssp. litorale Rupr. ex Rosh. TRSIL Siberian wheatgrass Agropyron fragile (Roth) P. Candargy AGFR Siberian wildrye Elymus sibiricus L. ELSI sicklegrass Parapholis C.E. Hubbard PARAP sideoats grama Bouteloua curtipendula (Michx.) Torr. BOCU sideoats grama Bouteloua curtipendula (Michx.) Torr. var. caespitosa Gould & Kapadia BOCUC sideoats grama Bouteloua curtipendula (Michx.) Torr. var. curtipendula BOCUC2 Sierra bluegrass Poa sierrae J.T. Howell POSI6 Sierra false mannagrass Torreyochloa californica (Beetle) Church TOCA2 Sierra false needlegrass Ptilagrostis kingii (Boland.) Barkworth PTKI Sierra needlegrass Achnatherum latiglume (Swallen) Barkworth ACLA8 Sierra wildrye Elymus sierrus Gould ELSI11 signalgrass Brachiaria (Trin.) Griseb. BRACH signalgrass Urochloa Beauv. UROCH silkreed Neyraudia reynaudiana (Kunth) Keng ex A.S. Hitchc. NERE silky bluestem Dichanthium sericeum (R. Br.) A. Camus DISE5 silky kangaroo grass Themeda villosa (Poir.) A. Camus THVI2 silky thatching grass Hyparrhenia dregeana (Nees) Stent HYDR4 silkybent Apera Adans. APERA silkyscale Anthaenantia Beauv. ANTHA silver beardgrass Bothriochloa laguroides (DC.) Herter BOLA2 silver beardgrass Bothriochloa laguroides (DC.) Herter ssp. laguroides BOLAL2 silver beardgrass Bothriochloa laguroides (DC.) Herter ssp. torreyana (Steud.) Allred & Gould BOLAT silver bluestem Bothriochloa saccharoides (Sw.) Rydb. BOSA silver hairgrass Aira caryophyllea L. AICA silver hairgrass Aira caryophyllea L. var. caryophyllea AICAC2 silver plumegrass Saccharum alopecuroides (L.) Nutt. SAAL21 silver tussock Poa cita Edgar POCI8 silvergrass Miscanthus Anderss. MISCA silvergrass Miscanthus capensis Anderss. in Oefvers. MICA16 silvergrass Miscanthus sinensis Anderson var. purpurascens (Anderss.) Tzvel. MISIP silvergrass Miscanthus transmorrisonensis Hayata MITR9 Silveus's dropseed Sporobolus silveanus Swallen SPSI2 Silveus's grass Trichoneura Anderss. TRICH6 Silveus's grass Trichoneura elegans Swallen TREL Silveus's lovegrass Eragrostis silveana Swallen ERSI Simon bamboo Pleioblastus simonii (Carr.) Nakai PLSI2 Simpson's cupgrass Eriochloa michauxii (Poir.) A.S. Hitchc. var. simpsonii A.S. Hitchc. ERMIS single threeawn Aristida schiedeana Trin. & Rupr. ARSC3 Sinocalamus latiflorus Dendrocalamus latiflorus Munro DELA8 sixweeks fescue Vulpia octoflora (Walt.) Rydb. VUOC sixweeks fescue Vulpia octoflora (Walt.) Rydb. var. glauca (Nutt.) Fern. VUOCG sixweeks fescue Vulpia octoflora (Walt.) Rydb. var. hirtella (Piper) Henr. VUOCH sixweeks fescue Vulpia octoflora (Walt.) Rydb. var. octoflora VUOCO sixweeks grama Bouteloua barbata Lag. BOBA2 sixweeks lovegrass Eragrostis lutescens Scribn. ERLU2 sixweeks muhly Muhlenbergia depauperata Scribn. MUDE sixweeks threeawn Aristida adscensionis L. ARAD skeletongrass Gymnopogon Beauv. GYMNO3 sleepygrass Achnatherum robustum (Vasey) Barkworth ACRO7 slender bluestem Dichanthium tenue (R. Br.) A. Camus DITE10 slender bottle-washers Enneapogon gracilis (R. Br.) P. Beauv. ENGR3 slender crabgrass Digitaria filiformis (L.) Koel. DIFI slender ditch paspalum Paspalum secans A.S. Hitchc. & Chase PASE3 slender dropseed Sporobolus creber De Nard. SPCR6 slender false brome Brachypodium sylvaticum (Huds.) Beauv. BRSY slender grama Bouteloua repens (Kunth) Scribn. & Merr. BORE2 slender hairgrass Deschampsia elongata (Hook.) Munro DEEL slender Indiangrass Sorghastrum elliottii (C. Mohr) Nash SOEL3 slender little bluestem Schizachyrium tenerum Nees SCTE5 slender meadow foxtail Alopecurus myosuroides Huds. ALMY slender muhly Muhlenbergia tenuifolia (Kunth) Trin. MUTE4 slender oat Avena barbata Pott ex Link AVBA slender Orcutt grass Orcuttia tenuis A.S. Hitchc. ORTE slender panicgrass Ottochloa nodosa (Kunth) Dandy OTNO slender panicgrass Panicum capillarioides Vasey PACA8 slender rosette grass Dichanthelium xanthophysum (Gray) Freckmann DIXA slender sandbur Cenchrus gracillimus Nash CEGR3 slender soft brome Bromus lepidus Holmb. BRLE5 slender wedgescale Sphenopholis intermedia (Rydb.) Rydb. SPIN3 slender wheatgrass Elymus trachycaulus (Link) Gould ex Shinners ELTR7 slender wheatgrass Elymus trachycaulus (Link) Gould ex Shinners ssp. subsecundus (Link) A.& D. L?ve ELTRS slender wheatgrass Elymus trachycaulus (Link) Gould ex Shinners ssp. trachycaulus ELTRT slender woodoats Chasmanthium laxum (L.) Yates CHLA6 slim tridens Tridens muticus (Torr.) Nash TRMU slim tridens Tridens muticus (Torr.) Nash var. elongatus (Buckl.) Shinners TRMUE slim tridens Tridens muticus (Torr.) Nash var. muticus TRMUM slimbristle sandbur Cenchrus brownii Roemer & J.A. Schultes CEBR slimflower lovegrass Eragrostis gangetica (Roxb.) Steud. ERGA2 slimflower muhly Muhlenbergia tenuiflora (Willd.) B.S.P. MUTE slimleaf panicgrass Dichanthelium linearifolium (Scribn. ex Nash) Gould DILI2 slimspike threeawn Aristida longespica Poir. ARLO16 slimspike threeawn Aristida longespica Poir. var. geniculata (Raf.) Fern. ARLOG6 slimspike threeawn Aristida longespica Poir. var. longespica ARLOL3 slimspike windmill grass Chloris andropogonoides Fourn. CHAN slimstem muhly Muhlenbergia filiculmis Vasey MUFI slimstem reedgrass Calamagrostis stricta (Timm) Koel. CAST36 slimstem reedgrass Calamagrostis stricta (Timm) Koel. ssp. stricta CASTS5 slimstem reedgrass Calamagrostis stricta (Timm) Koel. ssp. stricta var. stricta CASTS8 Sloane's tribisee Lasiacis sloanei (Griseb.) A.S. Hitchc. LASL sloughgrass Beckmannia Host BECKM small carpgrass Arthraxon hispidus (Thunb.) Makino ARHI3 small cordgrass Spartina maritima (M.A. Curtis) Fern. SPMA6 small fescue Vulpia microstachys (Nutt.) Munro VUMI small floating mannagrass Glyceria borealis (Nash) Batchelder GLBO Small Japanese Silver grass Miscanthus oligostachys Steph. MIOL small-leaf bentgrass Agrostis microphylla Steud. AGMI3 smallcane Lasiacis (Griseb.) A.S. Hitchc. LASIA smallcane Lasiacis divaricata (L.) A.S. Hitchc. LADI3 smallflower fescue Festuca minutiflora Rydb. FEMI3 smallflower lovegrass Eragrostis parviflora (R. Br.) Trin. ERPA32 smallflower melicgrass Melica imperfecta Trin. MEIM smallflower panicgrass Panicum parvifolium Lam. PAPA4 smallgrass Microchloa R. Br. MICRO smallseed paspalum Paspalum parviflorum Rohde ex Fluegg PAPA12 smilograss Piptatherum miliaceum (L.) Coss. PIMI3 Smith's melicgrass Melica smithii (Porter ex Gray) Vasey MESM smooth alkaligrass Puccinellia sublaevis (Holmb.) Tzvelev PUSU smooth barley Hordeum murinum L. ssp. glaucum (Steud.) Tzvelev HOMUG smooth brome Bromus inermis Leyss. BRIN2 smooth brome Bromus inermis Leyss. ssp. inermis BRINI smooth brome Bromus inermis Leyss. ssp. inermis var. divaricatus Rohlena BRIND smooth brome Bromus inermis Leyss. ssp. inermis var. inermis BRINI2 smooth cordgrass Spartina alterniflora Loisel. SPAL smooth crabgrass Digitaria ischaemum (Schreb.) Schreb. ex Muhl. DIIS smut grass Sporobolus indicus (L.) R. Br. SPIN4 smut grass Sporobolus indicus (L.) R. Br. var. indicus SPINI2 smut grass Sporobolus indicus (L.) R. Br. var. major (Buse) Baaijens SPINM Snake River wheatgrass Elymus wawawaiensis J. Carlson & Barkworth ELWA2 snow grass Phippsia concinna (T. Fries) Lindeberg PHCO8 snow grass Phippsia concinna (T. Fries) Lindeberg var. algidiformis (H. Sm.) Holmb. PHCOA2 snow grass Poa sieberiana Spreng. POSI12 soft brome Bromus hordeaceus L. BRHO2 soft brome Bromus hordeaceus L. ssp. divaricatus (Bonnier & Layens) Kergu?len BRHOD soft brome Bromus hordeaceus L. ssp. hordeaceus BRHOH soft brome Bromus hordeaceus L. ssp. pseudothominii (P. Sm.) H. Scholz BRHOP soft brome Bromus hordeaceus L. ssp. thominei (Hardham ex Nyman) Braun-Blanquet BRHOT soft feather pappusgrass Enneapogon cenchroides (Licht.) Roemer & J.A. Schultes ex C.E. Hubbard ENCE soft paspalum Paspalum molle Poir. PAMO3 softleaf rosette grass Dichanthelium malacophyllum (Nash) Gould DIMA5 Somerset hair grass Koeleria vallesiana (Honck.) Gaudin KOVA2 Sonoma shortawn foxtail Alopecurus aequalis Sobol. var. sonomensis Rubtzoff ALAES Sonoran panicgrass Panicum hirticaule J. Presl var. stramineum (A.S. Hitchc. & Chase) Beetle PAHIS Sorghastrum elliottii Chrysopogon elliottii C. Mohr CHEL4 Sorghastrum elliottii Sorghastrum apalachicolense D.W. Hall SOAP Sorghastrum nutans Andropogon nutans L. ANNU4 Sorghastrum nutans Sorghastrum avenaceum (Michx.) Nash SOAV2 Sorghastrum secundum Andropogon secundus Ell. ANSE7 Sorghastrum setosum Andropogon setosus Griseb. ANSE15 Sorghastrum setosum Sorghastrum parviflorum auct. non (Desv.) A.S. Hitchc. & Chase [misapplied] SOPA11 sorghum Sorghum bicolor (L.) Moench SOBI2 sorghum Sorghum Moench SORGH2 sorghum Sorghum propinquum (Kunth) Hitchc. SOPR3 Sorghum bicolor Sorghum caudatum (Hack.) Stapf SOCA18 Sorghum bicolor Sorghum guineense Stapf SOGU3 Sorghum bicolor Sorghum nervosum Besser ex Schultes SONE7 Sorghum bicolor ssp. arundinaceum Sorghum aethiopicum (Hackel) Rupr. ex Stapf SOAE3 Sorghum bicolor ssp. arundinaceum Sorghum arundinaceum (Desv.) Stapf SOAR7 Sorghum bicolor ssp. arundinaceum Sorghum bicolor (L.) Moench var. aethiopicum (Hack.) de Wet & Huckabay SOBIA2 Sorghum bicolor ssp. arundinaceum Sorghum bicolor (L.) Moench var. virgatum (Hack.) de Wet & Huckabay SOBIV Sorghum bicolor ssp. arundinaceum Sorghum lanceolatum Stapf SOLA2 Sorghum bicolor ssp. arundinaceum Sorghum verticilliflorum (Steud.) Stapf SOVE3 Sorghum bicolor ssp. arundinaceum Sorghum virgatum (Hack.) Stapf SOVI5 Sorghum bicolor ssp. bicolor Holcus bicolor L. HOBI Sorghum bicolor ssp. bicolor Holcus sorghum L. HOSO Sorghum bicolor ssp. bicolor Sorghum bicolor (L.) Moench var. caffrorum (Retz.) Mohlenbrock SOBIC Sorghum bicolor ssp. bicolor Sorghum caffrorum (Retz.) Beauv. SOCA14 Sorghum bicolor ssp. bicolor Sorghum cernuum (Ard.) Host SOCE80 Sorghum bicolor ssp. bicolor Sorghum dochna (Forssk.) Snowden SODO2 Sorghum bicolor ssp. bicolor Sorghum dochna (Forssk.) Snowden var. technicum (Koern.) Snowden SODOT Sorghum bicolor ssp. bicolor Sorghum durra (Forssk.) Stapf SODU4 Sorghum bicolor ssp. bicolor Sorghum saccharatum (L.) Moench SOSA6 Sorghum bicolor ssp. bicolor Sorghum subglabrescens Schweinf. & Aschers. SOSU2 Sorghum bicolor ssp. bicolor Sorghum vulgare Pers. SOVU2 Sorghum bicolor ssp. bicolor Sorghum vulgare Pers. var. caffrorum (Retz.) Hubbard & Rehd. SOVUC2 Sorghum bicolor ssp. bicolor Sorghum vulgare Pers. var. durra (Forssk.) Hubbard & Rehd. SOVUD3 Sorghum bicolor ssp. bicolor Sorghum vulgare Pers. var. roxburghii (Stapf) Haines SOVUR2 Sorghum bicolor ssp. bicolor Sorghum vulgare Pers. var. saccharatum (L.) Boerl. SOVUS2 Sorghum bicolor ssp. bicolor Sorghum vulgare Pers. var. technicum (Koern.) J?v. SOVUT2 Sorghum bicolor ssp. drummondii Andropogon drummondii Nees ex Steud. ANDR2 Sorghum bicolor ssp. drummondii Sorghum bicolor (L.) Moench var. drummondii (Nees ex Steud.) Mohlenbrock SOBID2 Sorghum bicolor ssp. drummondii Sorghum bicolor (L.) Moench var. sudanense (Piper) A.S. Hitchc. SOBIS Sorghum bicolor ssp. drummondii Sorghum drummondii (Nees ex Steud.) Millsp. & Chase SODR3 Sorghum bicolor ssp. drummondii Sorghum sudanense (Piper) Stapf SOSU4 Sorghum bicolor ssp. drummondii Sorghum vulgare Pers. var. drummondii (Nees ex Steud.) Hack. ex Chiov. SOVUD4 Sorghum bicolor ssp. drummondii Sorghum vulgare Pers. var. sudanense (Piper) Hitchc. SOVUS3 Sorghum halepense Holcus halepensis L. HOHA Sorghum halepense Sorghum miliaceum (Roxb.) Snowden SOMI10 sortbeard plumegrass Saccharum brevibarbe (Michx.) Pers. var. contortum (Ell.) R. Webster SABRC3 sourgrass Digitaria insularis (L.) Mez ex Ekman DIIN2 South African lovegrass Eragrostis plana Nees ERPL South African oatgrass Karroochloa Conert & T?rpe KARRO South African oatgrass Karroochloa purpurea (L. f.) Conert & T?rpe KAPU2 South American rice grass Jarava plumosa (Spreng.) S.L.W. Jacobs & J. Everett JAPL southern crabgrass Digitaria ciliaris (Retz.) Koel. DICI southern cutgrass Leersia hexandra Sw. LEHE southern sandbur Cenchrus echinatus L. CEEC southern threeawn Aristida simpliciflora Chapman ARSI3 southern watergrass Luziola fluitans (Michx.) Terrell & H. Robins. LUFL2 southwest fescue Festuca calligera (Piper) Rydb. FECA6 southwestern bristlegrass Setaria scheelei (Steud.) A.S. Hitchc. SESC2 southwestern muhly Muhlenbergia palmeri Vasey MUPA5 southwestern needlegrass Achnatherum eminens (Cav.) Barkworth ACEM4 Spartina ?caespitosa Spartina patens (Ait.) Muhl. var. caespitosa (A.A. Eat.) A.S. Hitchc. SPPAC Spartina alterniflora Spartina alterniflora Loisel. var. glabra (Muhl. ex Bigelow) Fern. SPALG Spartina alterniflora Spartina alterniflora Loisel. var. pilosa (Merr.) Fern. SPALP Spartina cynosuroides Spartina cynosuroides (L.) Roth var. polystachya (Michx.) Beal ex Fern. SPCYP Spartina maritima Spartina stricta (Ait.) Roth SPST7 Spartina patens Spartina patens (Ait.) Muhl. var. juncea (Michx.) A.S. Hitchc. SPPAJ Spartina patens Spartina patens (Ait.) Muhl. var. monogyna (M.A. Curtis) Fern. SPPAM Spartina pectinata Spartina michauxiana A.S. Hitchc. SPMI6 Spartina pectinata Spartina pectinata Bosc ex Link var. suttiei (Farw.) Fern. SPPES Spartina spartinae Vilfa spartinae Trin. VISP3 speargrass Piptochaetium J. Presl PIPTO spelt Triticum spelta L. TRSP3 Sphenopholis intermedia Sphenopholis intermedia (Rydb.) Rydb. var. pilosa Dore SPINP Sphenopholis intermedia Sphenopholis obtusata (Michx.) Scribn. var. major (Torr.) K.S. Erdman SPOBM Sphenopholis obtusata Aira obtusata Michx. AIOB Sphenopholis obtusata Sphenopholis obtusata (Michx.) Scribn. var. lobata (Trin.) Scribn. SPOBL Sphenopholis obtusata Sphenopholis obtusata (Michx.) Scribn. var. pubescens (Scribn. & Merr.) Scribn. SPOBP Sphenopholis pensylvanica Trisetum pensylvanicum (L.) Beauv. ex Roemer & J.A. Schultes TRPE6 spidergrass Aristida ternipes Cav. ARTE3 spidergrass Aristida ternipes Cav. var. gentilis (Henr.) Allred ARTEG spidergrass Aristida ternipes Cav. var. ternipes ARTET spiderweb chloris Chloris pycnothrix Trin. CHPY4 spike bentgrass Agrostis exarata Trin. AGEX spike dropseed Sporobolus contractus A.S. Hitchc. SPCO4 spike fescue Leucopoa Griseb. LEUCO12 spike fescue Leucopoa kingii (S. Wats.) W.A. Weber LEKI2 spike lovegrass Eragrostis spicata Vasey ERSP2 spike muhly Muhlenbergia wrightii Vasey ex Coult. MUWR spike trisetum Trisetum spicatum (L.) Richter TRSP2 spiked burr grass Tragus berteronianus J.A. Schultes TRBE spiked crinkleawn Trachypogon spicatus (L. f.) Kuntze TRSP12 spiked false mannagrass Torreyochloa erecta (A.S. Hitchc.) Church TOER spiked muhly Muhlenbergia glomerata (Willd.) Trin. MUGL3 spikeoat Avenula hookeri (Scribn.) Holub AVHO3 spiralgrass Tuctoria J. Reeder TUCTO splendid bristlegrass Setaria sphacelata (Schumacher) Moss var. splendida (Stapf) Clayton SESPS5 splitbeard bluestem Andropogon ternarius Michx. ANTE2 splitbeard bluestem Andropogon ternarius Michx. var. cabanisii (Hack.) Fern. & Grisc. ANTEC splitbeard bluestem Andropogon ternarius Michx. var. ternarius ANTET spontaneous barley Hordeum spontaneum K. Koch HOSP Sporobolus airoides Agrostis airoides Torr. AGAI Sporobolus clandestinus Sporobolus asper (Beauv.) Kunth var. canovirens (Nash) Shinners SPASC Sporobolus clandestinus Sporobolus asper (Beauv.) Kunth var. clandestinus (Biehler) Shinners SPASC2 Sporobolus clandestinus Sporobolus canovirens Nash SPCA12 Sporobolus clandestinus Sporobolus clandestinus (Biehler) A.S. Hitchc. var. canovirens (Nash) Steyermark & Kucera SPCLC Sporobolus clandestinus Sporobolus compositus (Poir.) Merr. var. clandestinus (Biehler) J. Wipff & S.D. Jones SPCOC3 Sporobolus clandestinus Sporobolus longifolius (Torr.) Wood SPLO4 Sporobolus compositus var. compositus Sporobolus asper (Beauv.) Kunth SPAS Sporobolus compositus var. compositus Sporobolus asper (Beauv.) Kunth var. hookeri (Trin.) Vasey SPASH Sporobolus compositus var. drummondii Sporobolus asper (Beauv.) Kunth var. drummondii (Trin.) Vasey SPASD Sporobolus compositus var. drummondii Sporobolus asper (Beauv.) Kunth var. pilosus (Vasey) A.S. Hitchc. SPASP Sporobolus compositus var. drummondii Sporobolus attenuatus Nash SPAT2 Sporobolus compositus var. drummondii Sporobolus drummondii (Trin.) Vasey SPDR Sporobolus compositus var. drummondii Sporobolus pilosus Vasey SPPI Sporobolus compositus var. macer Sporobolus asper (Beauv.) Kunth var. macer (Trin.) Shinners SPASM Sporobolus compositus var. macer Sporobolus macer (Trin.) A.S. Hitchc. SPMA8 Sporobolus contractus Sporobolus cryptandrus (Torr.) Gray var. strictus Scribn. SPCRS Sporobolus cryptandrus Agrostis cryptandra Torr. AGCR2 Sporobolus cryptandrus Sporobolus cryptandrus (Torr.) Gray ssp. fuscicola (Hook.) E.K. Jones & Fassett SPCRF Sporobolus cryptandrus Sporobolus cryptandrus (Torr.) Gray var. fuscicola (Hook.) Pohl SPCRF2 Sporobolus cryptandrus Sporobolus cryptandrus (Torr.) Gray var. occidentalis E.K. Jones & Fassett SPCRO Sporobolus diandrus Sporobolus diander (Retz.) Beauv. [orthographic error] SPDI4 Sporobolus diandrus Sporobolus indicus (L.) R. Br. var. flaccidus (Roemer & J.A. Schultes) Veldkamp SPINF Sporobolus domingensis Vilfa domingensis Trin. VIDO5 Sporobolus fimbriatus Sporobolus fimbriatus (Trin.) Nees var. latifolius Stent SPFIL Sporobolus indicus Sporobolus tenacissimus auct. SPTE12 Sporobolus indicus var. capensis Sporobolus africanus (Poir.) Robyns & Tournay SPAF Sporobolus indicus var. indicus Agrostis indica L. AGIN6 Sporobolus indicus var. indicus Sporobolus angustus Buckl. SPAN6 Sporobolus indicus var. indicus Sporobolus berterianus (Trin.) A.S. Hitchc. & Chase SPBE4 Sporobolus indicus var. indicus Sporobolus poiretii (Roemer & J.A. Schultes) A.S. Hitchc. SPPO2 Sporobolus indicus var. major Sporobolus fertilis (Steud.) Clayton SPFE3 Sporobolus indicus var. pyramidalis Sporobolus jacquemontii Kunth SPJA2 Sporobolus ioclados Sporobolus ioclados (Trin.) Nees var. usitatus (Stent) Chippind. SPIOU2 Sporobolus junceus Sporobolus gracilis (Trin.) Merr. SPGR4 Sporobolus microspermus Sporobolus microspermum (Lag.) A.S. Hitchc. [orthographic variant] SPMI15 Sporobolus neglectus Sporobolus vaginiflorus (Torr. ex Gray) Wood var. neglectus (Nash) Scribn. SPVAN Sporobolus nervosus Sporobolus lampranthus Pilg. SPLA10 Sporobolus purpurascens Agrostis purpurascens Sw. AGPU7 Sporobolus pyramidatus Agrostis pyramidata Lam. AGPY Sporobolus pyramidatus Sporobolus argutus (Nees) Kunth SPAR3 Sporobolus pyramidatus Sporobolus coromandelianus auct. non (Retz.) Kunth [misapplied] SPCO17 Sporobolus pyramidatus Sporobolus patens auct. non Swallen [misapplied] SPPA6 Sporobolus pyramidatus Sporobolus pulvinatus Swallen SPPU2 Sporobolus tenuissimus Sporobolus muralis (Raddi) A.S. Hitchc. & Chase SPMU4 Sporobolus vaginiflorus var. ozarkanus Sporobolus neglectus Nash var. ozarkanus (Fern.) Steyermark & Kucera SPNEO Sporobolus vaginiflorus var. ozarkanus Sporobolus ozarkanus Fern. SPOZ Sporobolus vaginiflorus var. vaginiflorus Sporobolus vaginiflorus (Torr. ex Gray) Wood var. inaequalis Fern. SPVAI Sporobolus virginicus Agrostis virginica L. AGVI8 Sporobolus wrightii Sporobolus airoides (Torr.) Torr. var. wrightii (Munro ex Scribn.) Gould SPAIW spotted signal grass Brachiaria nigropedata (Munro ex Ficalho & Hiern) Stapf BRNI5 sprangletop Leptochloa Beauv. LEPTO sprawling signalgrass Urochloa reptans (L.) Stapf URRE2 spreading bluegrass Poa pratensis L. ssp. irrigata (Lindm.) Lindb. f. POPRI2 spreading liverseed grass Urochloa decumbens (Stapf) R. Webster URDE spreading panicgrass Paspalidium distans (Trin.) Hughes PADI27 spreading sprangletop Leptochloa divaricatissima S.T. Blake LEDI29 spreading threeawn Aristida cognata Trin. & Rupr. ARCO10 spreading wheatgrass Elymus scribneri (Vasey) M.E. Jones ELSC4 spreading windmill grass Chloris divaricata R. Br. CHDI2 spring milletgrass Milium vernale Bieb. MIVE3 Springfield's beardgrass Bothriochloa springfieldii (Gould) Parodi BOSP3 sprucetop grama Bouteloua chondrosioides (Kunth) Benth. ex S. Wats. BOCH squirreltail Elymus elymoides (Raf.) Swezey ELEL5 squirreltail Elymus elymoides (Raf.) Swezey ssp. brevifolius (J.G. Sm.) Barkworth ELELB2 squirreltail Elymus elymoides (Raf.) Swezey ssp. californicus (J.G. Sm.) Barkworth ELELC2 squirreltail Elymus elymoides (Raf.) Swezey ssp. elymoides ELELE squirreltail Elymus elymoides (Raf.) Swezey ssp. hordeoides (Suksdorf) Barkworth ELELH squirreltail fescue Vulpia elliotea (Raf.) Fern. VUEL St. Augustine grass Stenotaphrum secundatum (Walt.) Kuntze STSE St. Augustine grass Stenotaphrum Trin. STENO3 St. Eustatius threeawn Aristida suringarii Henr. ARSU6 staggers grass Melica decumbens Thunb. MEDE14 stalked burr grass Tragus racemosus (L.) All. TRRA stalkgrass Pharus L. PHARU stalkleaf murainagrass Ischaemum timorense Kunth ISTI3 stargrass Cynodon plectostachyus (K. Schum.) Pilger CYPL2 starved panicgrass Dichanthelium depauperatum (Muhl.) Gould DIDE4 Stebbin's bluegrass Poa stebbinsii Soreng POST11 Stebbins's barley ?Elyhordeum stebbinsianum (Bowden) Bowden [Elymus glaucus ? Hordeum jubatum] ELST Steinchisma hians Panicum hians Ell. PAHI11 Stenotaphrum secundatum Ischaemum secundatum Walt. ISSE3 Stevens's panicgrass Panicum stevensianum A.S. Hitchc. & Chase PAST2 sticky lovegrass Eragrostis glutinosa (Sw.) Trin. ERGL6 sticky panicgrass Homolepis glutinosa (Sw.) F. Zuloaga & Soderstr. HOGL3 sticky sprangletop Leptochloa viscida (Scribn.) Beal LEVI5 Stillman's needlegrass Achnatherum stillmanii (Bolander) Barkworth ACST7 stinkgrass Eragrostis cilianensis (All.) Vign. ex Janchen ERCI stinkgrass Melinis Beauv. MELIN Stipa arabica Stipa szovitziana Trin. & Rupr. STSZ2 Stipa caucasica ssp. desertorum Stipa desertorum (Roshev.) Ikonn. STDE5 Stipa caucasica ssp. glareosa Stipa glareosa P. Smirn. STGL7 Stipa holosericea ssp. fontanesii Stipa fontanesii Parl. STFO3 Stipa offneri Stipa juncea auct. STJU2 Stipa tirsa Stipa stenophylla (Czern. ex Lindem.) Trautv. STST13 Stipagrostis ciliata Aristida ciliata Desf. ARCI9 Stipagrostis lanata Aristida lanata Forssk. ARLA27 Stipagrostis obtusa Aristida obtusa Delile AROB6 Stipagrostis pennata ssp. pennata Aristida pennata Trin. ARPE16 Stipagrostis plumosa Aristida plumosa L. ARPL11 Stipagrostis pungens Aristida pungens Desf. ARPU21 Stipagrostis uniplumis Aristida uniplumis Licht. ARUN6 streambank rabbitsfoot grass Polypogon elongatus Kunth POEL streambed bristlegrass Setaria leucopila (Scribn. & Merr.) K. Schum. SELE6 strigose sicklegrass Parapholis strigosa (Dumort.) C.E. Hubbard PAST20 Sudan crowfoot grass Dactyloctenium germinatum Hack. DAGE Sudangrass Sorghum bicolor (L.) Moench ssp. drummondii (Nees ex Steud.) de Wet & Harlan SOBID sugarcane Saccharum L. SACCH sugarcane Saccharum officinarum L. SAOF sugarcane plumegrass Saccharum giganteum (Walt.) Pers. SAGI Suksdorf's brome Bromus suksdorfii Vasey BRSU2 summergrass Alloteropsis cimicina (L.) Stapf ALCI3 summergrass Alloteropsis J. Presl ALLOT2 sunolgrass Phalaris caerulescens Desf. PHCA46 supina bluegrass Poa supina Schrader POSU18 Svenson's wildrye Elymus svensonii Church ELSV Swallen's curly-mesquite Hilaria swallenii Cory HISW Swallen's lovegrass Eragrostis swallenii A.S. Hitchc. ERSW Swallen's needlegrass Achnatherum swallenii (C.L. Hitchc. & Spellenberg) Barkworth ACSW3 Swallenia alexandrae Ectosperma alexandrae Swallen ECAL4 swamp pricklegrass Crypsis schoenoides (L.) Lam. CRSC swamp wallaby grass Amphibromus scabrivalvis (Trin.) Swallen AMSC4 swamp wedgescale Sphenopholis pensylvanica (L.) A.S. Hitchc. SPPE3 Swartz's threeawn Aristida swartziana Steud. ARSW sweet signalgrass Brachiaria eruciformis (Sm.) Griseb. BRER sweet tanglehead Heteropogon melanocarpus (Ell.) Ell. ex Benth. HEME sweet vernalgrass Anthoxanthum odoratum L. ANOD sweet vernalgrass Anthoxanthum odoratum L. ssp. odoratum ANODO2 sweet woodreed Cinna arundinacea L. CIAR2 sweetgrass Hierochloe odorata (L.) Beauv. HIOD sweetgrass Hierochloe R. Br. HIERO sweetpitted grass Bothriochloa insculpta (Hochst.) A. Camus [excluded] BOIN6 sweetshoot bamboo Phyllostachys dulcis McClure PHDU3 switchcane Arundinaria gigantea (Walt.) Muhl. ssp. tecta (Walt.) McClure ARGIT8 switchgrass Panicum virgatum L. PAVI2 switchgrass Panicum virgatum L. var. spissum Linder PAVIS switchgrass Panicum virgatum L. var. virgatum PAVIV swollen fingergrass Chloris barbata Sw. CHBA10 sycamore muhly Muhlenbergia elongata Scribn. ex Beal MUEL2 Taeniatherum caput-medusae Elymus caput-medusae L. ELCA13 Taeniatherum caput-medusae Taeniatherum asperum auct. non (Simonkai) Nevski [misapplied] TAAS2 Taeniatherum caput-medusae Taeniatherum crinitum (Schreb.) Nevski var. caput-medusae (L.) J. Wipff TACRC Taeniatherum caput-medusae ssp. crinitum Elymus crinitus Schreb. ELCR6 tall beardgrass Bothriochloa alta (A.S. Hitchc.) Henr. BOAL3 tall brome Bromus grandis (Shear) A.S. Hitchc. BRGR4 tall fescue Schedonorus phoenix (Scop.) Holub SCPH tall grama Bouteloua hirsuta Lag. var. pectinata (Featherly) Cory BOHIP tall oat grass Arrhenatherum album (Vahl) Clayton ARAL28 tall oatgrass Arrhenatherum elatius (L.) Beauv. ex J.& K. Presl AREL3 tall oatgrass Arrhenatherum elatius (L.) Beauv. ex J.& K. Presl var. bulbosum (Willd.) Spenner ARELB tall oatgrass Arrhenatherum elatius (L.) Beauv. ex J.& K. Presl var. elatius ARELE tall reed Phragmites karka (Retz.) Trin. ex Steud. [excluded] PHKA3 tall threeawn Aristida patula Chapman ex Nash ARPA11 tall trisetum Trisetum canescens Buckl. TRCA21 tall wheatgrass Thinopyrum ponticum (Podp.) Z.-W. Liu & R.-C. Wang THPO7 tall windmill grass Chloris elata Desv. CHEL3 talquezal Paspalum virgatum L. PAVI6 tanglehead Heteropogon contortus (L.) Beauv. ex Roemer & J.A. Schultes HECO10 tanglehead Heteropogon Pers. HETER6 tapered rosette grass Dichanthelium acuminatum (Sw.) Gould & C.A. Clark DIAC2 tapered rosette grass Dichanthelium acuminatum (Sw.) Gould & C.A. Clark var. acuminatum DIACA tapertip cupgrass Eriochloa acuminata (J. Presl) Kunth ERAC4 tapertip cupgrass Eriochloa acuminata (J. Presl) Kunth var. acuminata ERACA tapertip cupgrass Eriochloa acuminata (J. Presl) Kunth var. minor (Vasey) R.B. Shaw ERACM tapertip false wheatgrass Eremopyrum bonaepartis (Spreng.) Nevski ERBO3 Tasmanian wallaby grass Rytidosperma semiannulare (Labill.) Connor & Edgar RYSE Tausch's goatgrass Aegilops tauschii Coss. AETA2 teal lovegrass Eragrostis hypnoides (Lam.) B.S.P. ERHY teff Eragrostis tef (Zuccagni) Trotter ERTE tender lovegrass Eragrostis scaligera Salzm. ex Steud. ERSC3 teosinte Zea luxurians (Durieu & Asch.) Bird ZELU Texas bluegrass Poa arachnifera Torr. POAR Texas bluestem Schizachyrium cirratum (Hack.) Woot. & Standl. SCCI2 Texas bristlegrass Setaria texana W.H.P. Emery SETE6 Texas brome Bromus texensis (Shear) A.S. Hitchc. BRTE2 Texas cottontop Digitaria patens (Swallen) Henr. DIPA6 Texas crabgrass Digitaria texana A.S. Hitchc. DITE Texas cupgrass Eriochloa sericea (Scheele) Munro ex Vasey ERSE5 Texas dropseed Sporobolus texanus Vasey SPTE5 Texas fescue Festuca versuta Beal FEVE Texas fluffgrass Tridens texanus (S. Wats.) Nash TRTE2 Texas grama Bouteloua rigidiseta (Steud.) A.S. Hitchc. BORI Texas muhly Muhlenbergia texana Buckl. MUTE2 Texas salt Allolepis S?derstrom & Decker ALLOL Texas salt Allolepis texana (Vasey) S?derstrom & Decker ALTE3 Texas signalgrass Urochloa texana (Buckl.) R. Webster URTE2 Texas wedgescale Sphenopholis longiflora (Vasey) A.S. Hitchc. SPLO Texas wildrice Zizania texana A.S. Hitchc. ZITE Texas wildrye Elymus interruptus Buckl. ELIN6 Texas willkommia Willkommia texana A.S. Hitchc. WITE Texas windmill grass Chloris texensis Nash CHTE Texas wintergrass Nassella leucotricha (Trin. & Rupr.) Pohl NALE3 Texasgrass Vaseyochloa A.S. Hitchc. VASEY Texasgrass Vaseyochloa multinervosa (Vasey) A.S. Hitchc. VAMU textile bamboo Bambusa textilis McClure BATE6 thalia lovegrass Eragrostis atrovirens (Desv.) Trin. ex Steud. ERAT3 Tharp's dropseed Sporobolus tharpii A.S. Hitchc. SPTH thatching grass Hyparrhenia Anderss. ex Fourn. HYPAR thatching grass Hyparrhenia hirta (L.) Stapf HYHI Themeda arguens Themeda frondosa (R. Br.) Merr. THFR4 Themeda quadrivalvis var. quadrivalvis Andropogon quadrivalvis L. ANQU3 Themeda triandra Themeda australis (R. Br.) Stapf [excluded] THAU8 Themeda villosa Themeda gigantea auct. non (Cav.) Hack. [misapplied] THGI thick ditch crowngrass Paspalum arundinaceum Poir. PAAR6 thicket panicgrass Panicum trichanthum Nees PATR3 thicket tribisee Lasiacis ligulata A.S. Hitchc. & Chase LALI thickspike wheatgrass Elymus lanceolatus (Scribn. & J.G. Sm.) Gould ELLA3 thickspike wheatgrass Elymus lanceolatus (Scribn. & J.G. Sm.) Gould ssp. lanceolatus ELLAL thimble grass Fingerhuthia sesleriiformis Nees FISE2 thin paspalum Paspalum setaceum Michx. PASE5 thinleaf false brome Brachypodium phoenicoides (L.) Roemer & J.A. Schultes BRPH3 Thinopyrum intermedium Agropyron aucheri Boiss. AGAU5 Thinopyrum intermedium Agropyron ciliatiflorum Roshev. AGCI3 Thinopyrum intermedium Agropyron gentryi Melderis AGGE3 Thinopyrum intermedium Agropyron glaucum (Desf. ex DC.) Roemer & J.A. Schultes [anomalous] AGGL4 Thinopyrum intermedium Agropyron intermedium (Host) Beauv. AGIN2 Thinopyrum intermedium Agropyron intermedium (Host) Beauv. var. trichophorum (Link) Halac. AGINT Thinopyrum intermedium Agropyron podperae Nabelek AGPO3 Thinopyrum intermedium Agropyron pulcherrimum Grossh. AGPU9 Thinopyrum intermedium Agropyron trichophorum (Link) Richter AGTR6 Thinopyrum intermedium Elymus hispidus (Opiz) Melderis ELHI6 Thinopyrum intermedium Elymus hispidus (Opiz) Melderis ssp. barbulatus (Schur) Melderis ELHIB Thinopyrum intermedium Elymus hispidus (Opiz) Melderis var. ruthenicus (Griseb.) Dorn ELHIR Thinopyrum intermedium Elymus intermedius (Host) Beauv. ELIN10 Thinopyrum intermedium Elytrigia intermedia (Host) Nevski ELIN7 Thinopyrum intermedium Elytrigia intermedia (Host) Nevski ssp. barbulata (Schur) A. L?ve ELINB Thinopyrum intermedium Elytrigia intermedia (Host) Nevski ssp. intermedia (Host) Nevski [superfluous autonym] ELINI2 Thinopyrum intermedium Elytrigia intermedia (Host) Nevski ssp. trichophora (Link) Tvzel ELINT Thinopyrum intermedium Thinopyrum intermedium (Host) Barkworth & D.R. Dewey ssp. barbulatum (Schur) Barkworth & D.R. Dewey THINB Thinopyrum junceiforme Agropyron junceum (L.) Beauv. p.p. AGJU Thinopyrum junceiforme Elymus farctus (Viviani) Runemark ex Melderis p.p. ELFA80 Thinopyrum junceiforme Elymus farctus (Viviani) Runemark ex Melderis p.p. ssp. boreali-atlanticus (Simonet & Guin.) Melderis ELFAB2 Thinopyrum junceiforme Elymus multinodus Gould ELMU6 Thinopyrum junceiforme Elytrigia juncea (L.) Nevski ELJU2 Thinopyrum junceiforme Elytrigia juncea (L.) Nevski ssp. boreoatlantica (Simonet & Guin.) Hyl. ELJUB Thinopyrum junceiforme Thinopyrum junceum (L.) A. L?ve p.p. THJU2 Thinopyrum junceiforme Triticum farctum Viviani p.p. TRFA Thinopyrum junceiforme Triticum junceum L. p.p. TRJU Thinopyrum ponticum Agropyron elongatum (Host) Beauv. AGEL3 Thinopyrum ponticum Agropyron varnense (Velen.) Hayek AGVA80 Thinopyrum ponticum Elymus elongatus (Host) Runemark ELEL8 Thinopyrum ponticum Elymus elongatus (Host) Runemark var. ponticus (Podp.) Dorn ELELP Thinopyrum ponticum Elymus varnensis (Velen.) Runemark ELVA2 Thinopyrum ponticum Elytrigia elongata (Host) Nevski ELEL6 Thinopyrum ponticum Elytrigia pontica (Podp.) Holub ELPO Thinopyrum ponticum Elytrigia pontica (Podp.) Holub ssp. pontica (Podp.) Holub [superfluous autonym] ELPOP2 Thinopyrum ponticum Lophopyrum elongatum (Host) A. L?ve LOEL2 Thinopyrum pycnanthum Agropyron campestre Gren. & Godr. AGCA13 Thinopyrum pycnanthum Agropyron littorale auct. non (Host) Dur. [misapplied] AGLI81 Thinopyrum pycnanthum Agropyron pungens (Pers.) Roemer & J.A. Schultes var. acadiense (F.T. Hubbard) Fern. AGPUA Thinopyrum pycnanthum Agropyron pungens auct. non (Pers.) Roemer & J.A. Schultes [misapplied] AGPU3 Thinopyrum pycnanthum Agropyron pycnanthum (Godr.) Godr. & Gren. AGPY80 Thinopyrum pycnanthum Elymus pungens auct. non (Pers.) Melderis [misapplied] ELPU4 Thinopyrum pycnanthum Elymus pycnanthus (Godr.) Melderis ELPY80 Thinopyrum pycnanthum Elytrigia pungens auct. non (Pers.) Tutin [misapplied] ELPU3 Thinopyrum pycnanthum Elytrigia pycnantha (Godr.) A. L?ve ELPY3 Thinopyrum pycnanthum Elytrigia pycnanthes (Godr.) A. L?ve [orthographic variant] ELPY2 Thinopyrum pycnanthum Triticum pungens auct. non Pers. [misapplied] TRPU12 thintail Lepturus R. Br. LEPTU three-awn grass Stipagrostis pungens (Desf.) De Winter STPU10 threeawn Aristida L. ARIST threeflower melicgrass Melica nitens (Scribn.) Nutt. ex Piper MENI threespike goosegrass Eleusine tristachya (Lam.) Lam. ELTR2 Thurber's fescue Festuca thurberi Vasey FETH Thurber's muhly Muhlenbergia thurberi Rydb. MUTH Thurber's needlegrass Achnatherum thurberianum (Piper) Barkworth ACTH7 Thurow's panicgrass Dichanthelium acuminatum (Sw.) Gould & C.A. Clark var. thurowii (Scribn. & J.G. Sm.) Gould & C.A. Clark DIACT Thyridolepis mitchelliana Neurachne mitchelliana Nees NEMI4 Thysanolaena latifolia Melica latifolia Roxb. ex Hornem. MELA16 Thysanolaena maxima Agrostis maxima Roxb. [excluded] AGMA13 tick quackgrass Thinopyrum pycnanthum (Godr.) Barkworth THPY4 tiger grass Thysanolaena latifolia (Roxb. ex Hornem.) Honda THLA12 timber oatgrass Danthonia intermedia Vasey DAIN timberline bluegrass Poa glauca Vahl ssp. rupicola (Nash ex Rydb.) W.A. Weber POGLR2 Timopheev's wheat Triticum timopheevii (Zhuk.) Zhuk. TRTI timothy Phleum L. PHLEU timothy Phleum pratense L. PHPR3 timothy canarygrass Phalaris angusta Nees ex Trin. PHAN2 tobosagrass Pleuraphis mutica Buckl. PLMU3 toetoe Cortaderia toetoe Zotov COTO6 Tonkin cane Arundinaria amabilis McClure ARAM6 toothache grass Ctenium aromaticum (Walt.) Wood CTAR toothache grass Ctenium Panzer CTENI torpedo grass Panicum repens L. PARE3 Torrey's melicgrass Melica torreyana Scribn. METO Torreyochloa californica Glyceria californica Beetle GLCA4 Torreyochloa californica Puccinellia californica (Beetle) Munz PUCA Torreyochloa erecta Glyceria erecta A.S. Hitchc. GLER2 Torreyochloa erecta Puccinellia erecta (A.S. Hitchc.) Munz PUER Torreyochloa pallida var. fernaldii Glyceria fernaldii (A.S. Hitchc.) St. John GLFE2 Torreyochloa pallida var. fernaldii Glyceria pallida (Torr.) Trin. var. fernaldii A.S. Hitchc. GLPAF Torreyochloa pallida var. fernaldii Puccinellia fernaldii (A.S. Hitchc.) E.G. Voss PUFE Torreyochloa pallida var. fernaldii Torreyochloa fernaldii (A.S. Hitchc.) Church TOFE2 Torreyochloa pallida var. pallida Glyceria pallida (Torr.) Trin. GLPA5 Torreyochloa pallida var. pallida Panicularia pallida (Torr.) Kuntze PAPA27 Torreyochloa pallida var. pallida Puccinellia pallida (Torr.) Clausen PUPA2 Torreyochloa pallida var. pauciflora Glyceria otisii A.S. Hitchc. GLOT Torreyochloa pallida var. pauciflora Glyceria pauciflora J. Presl GLPA6 Torreyochloa pallida var. pauciflora Puccinellia pauciflora (J. Presl) Munz PUPA3 Torreyochloa pallida var. pauciflora Puccinellia pauciflora (J. Presl) Munz var. holmii (Beal) C.L. Hitchc. PUPAH Torreyochloa pallida var. pauciflora Puccinellia pauciflora (J. Presl) Munz var. microtheca (Buckl.) C.L. Hitchc. PUPAM2 Torreyochloa pallida var. pauciflora Torreyochloa pauciflora (J. Presl) Church TOPA3 Torreyochloa pallida var. pauciflora Torreyochloa pauciflora (J. Presl) Church var. holmii (Beal) Taylor & MacBryde TOPAH Torreyochloa pallida var. pauciflora Torreyochloa pauciflora (J. Presl) Church var. microtheca (Buckl.) Taylor & MacBryde TOPAM torrid panicgrass Panicum torridum Gaud. PATO tortoise shell bamboo Phyllostachys edulis (Carr.) Houz. PHED4 tortoiseshell bamboo Phyllostachys heterocycla (Carr.) Matsumura PHHE20 Tracadigash Mountain alkaligrass Puccinellia laurentiana Fern. & Weatherby PULA3 Trachypogon spicatus Andropogon montufari Kunth ANMO13 Trachypogon spicatus Heteropogon secundus J. Presl HESE4 Trachypogon spicatus Stipa spicata L. f. STSP17 Trachypogon spicatus Trachypogon montufari auct. non (Kunze) Nees [misapplied] TRMO Trachypogon spicatus Trachypogon secundus (J. Presl) Scribn. TRSE Tracy's bluegrass Poa tracyi Vasey POTR Tracy's bluestem Andropogon tracyi Nash ANTR Tragus berteronianus Nazia aliena auct. non (Spreng.) Scribn. [misapplied] NAAL Tragus racemosus Cenchrus racemosus L. CERA2 Tragus racemosus Nazia racemosa (L.) Kuntze NARA trailing crabgrass Digitaria radicosa (Presl) Miq. DIRA5 Tribolium echinatum Lasiochloa echinata (Thunb.) Henrard LAEC3 Tribolium hispidum Lasiochloa longifolia (Schrad.) Kunth LALO3 Tribolium uniolae Plagiochloa uniolae (L. f.) Adamson & Sprague PLUN5 Trichloris crinita Chloris crinita Lag. CHCR Trichloris crinita Chloris mendocina Phil. CHME4 Trichloris crinita Trichloris mendocina (Phil.) Kurtz TRME5 Trichloris pluriflora Chloris pluriflora (Fourn.) W.D. Clayton CHPL2 tridens Tridens Roemer & J.A. Schultes TRIDE Tridens albescens Rhombolytrum albescens (Vasey) Nash RHAL7 Tridens ambiguus Triodia elliottii Bush TREL7 Tridens carolinianus Triodia drummondii Scribn. & Kearney TRDR2 Tridens eragrostoides Triodia eragrostoides Vasey & Scribn. TRER5 Tridens flavus var. chapmanii Tridens chapmanii (Small) Chase TRCH4 Tridens flavus var. chapmanii Triodia chapmanii (Small) Bush TRCH3 Tridens flavus var. flavus Triodia flava (L.) Smyth TRFL7 Tridens muticus var. elongatus Tridens ?oklahomensis (Featherly) Featherly (pro sp.) [not hybrid] TROK Tridens muticus var. elongatus Tridens elongatus (Buckl.) Nash TREL6 Tridens muticus var. elongatus Triodia elongata (Buckl.) Scribn. TREL5 Tridens muticus var. muticus Triodia mutica (Torr.) Scribn. TRMU5 Tridens strictus Triodia stricta (Nutt.) Benth. ex Vasey TRST11 Triplasis purpurea Triplasis intermedia Nash TRIN7 Tripogon spicatus Bromus spicatus Nees BRSP4 Tripsacum dactyloides Coix dactyloides L. CODA3 Tripsacum dactyloides Tripsacum dactyloides (L.) L. var. occidentale Cutler & Anders. TRDAO Tripsacum fasciculatum Tripsacum laxum Nash TRLA25 Trisetum canescens Trisetum cernuum Trin. TRCE2 Trisetum canescens Trisetum cernuum Trin. ssp. canescens (Buckl.) Calder & Taylor TRCEC3 Trisetum canescens Trisetum cernuum Trin. var. canescens (Buckl.) Beal TRCEC Trisetum canescens Trisetum cernuum Trin. var. projectum (Louis-Marie) Beetle TRCEP Trisetum canescens Trisetum spicatum (L.) Richter var. projectum (Louis-Marie) J.T. Howell TRSPP3 Trisetum flavescens Avena flavescens L. AVFL Trisetum melicoides Graphephorum melicoides (Michx.) Desv. GRME2 Trisetum melicoides Trisetum melicoides (Michx.) Vasey ex Scribn. var. majus (Gray) A.S. Hitchc. TRMEM Trisetum sibiricum ssp. litorale Trisetum litorale (Rupr. ex Rosh.) Czern. TRLI4 Trisetum spicatum Aira spicata L. AISP Trisetum spicatum Trisetum molle Kunth TRMO21 Trisetum spicatum Trisetum montanum Vasey TRMO5 Trisetum spicatum Trisetum montanum Vasey var. shearii Louis-Marie TRMOS Trisetum spicatum Trisetum spicatum (L.) Richter ssp. alaskanum (Nash) Hult TRSPA Trisetum spicatum Trisetum spicatum (L.) Richter ssp. congdonii (Scribn. & Merr.) Hult TRSPC Trisetum spicatum Trisetum spicatum (L.) Richter ssp. majus (Rydb.) Hult TRSPM2 Trisetum spicatum Trisetum spicatum (L.) Richter ssp. molle (Kunth) Hult TRSPM3 Trisetum spicatum Trisetum spicatum (L.) Richter ssp. montanum (Vasey) W. Weber TRSPM4 Trisetum spicatum Trisetum spicatum (L.) Richter ssp. pilosiglume (Fern.) Hult TRSPP4 Trisetum spicatum Trisetum spicatum (L.) Richter var. alaskanum (Nash) Malte ex Louis-Marie TRSPA2 Trisetum spicatum Trisetum spicatum (L.) Richter var. congdonii (Scribn. & Merr.) A.S. Hitchc. TRSPC2 Trisetum spicatum Trisetum spicatum (L.) Richter var. maidenii (Gandog.) Fern. TRSPM Trisetum spicatum Trisetum spicatum (L.) Richter var. majus (Rydb.) Farw. TRSPM5 Trisetum spicatum Trisetum spicatum (L.) Richter var. molle (Kunth) Beal TRSPM6 Trisetum spicatum Trisetum spicatum (L.) Richter var. pilosiglume Fern. TRSPP Trisetum spicatum Trisetum spicatum (L.) Richter var. spicatiforme Hult TRSPS2 Trisetum spicatum Trisetum spicatum (L.) Richter var. villosissimum (Lange) Louis-Marie TRSPV Trisetum spicatum Trisetum subspicatum (L.) Beauv. TRSU9 Trisetum spicatum Trisetum triflorum (Bigelow) A.& D. L?ve TRTR4 Trisetum spicatum Trisetum triflorum (Bigelow) A.& D. L?ve ssp. molle (Kunth) A.& D. L?ve TRTRM Trisetum spicatum Trisetum villosissimum (Lange) Louis-Marie TRVI10 triticale ?Triticosecale rimpaui Wittm. TRRI8 triticosecale ?Triticosecale Wittm. TRITI2 Triticum aestivum Triticum hybernum L. TRHY5 Triticum aestivum Triticum macha Dekap. & Menab. TRMA11 Triticum aestivum Triticum sativum Lam. TRSA5 Triticum aestivum Triticum sphaerococcum Percival TRSP5 Triticum aestivum Triticum vulgare Vill. TRVU Triticum boeoticum ssp. boeoticum Triticum aegilopoides (Link) Bal. ex Koern. TRAE5 Triticum boeoticum ssp. thaoudar Triticum thaoudar Reuter ex Hausskn. TRTH3 Triticum carthlicum Triticum persicum Vav. ex Zhuk. TRPE20 Triticum durum Triticum pyramidale Percival TRPY Triticum karamyschevii Triticum palaeocolchicum Menabde TRPA18 Triticum spelta Triticum aestivum L. var. spelta (L.) Bailey TRAES Triticum turanicum Triticum orientale Percival TROR10 Triticum turgidum Triticum dicoccoides Koern. ex Schweinf. TRDI9 Triticum turgidum Triticum dicoccon Schrank [orthographic error] TRDI12 Triticum turgidum Triticum dicoccum Schrank ex Schuebl. TRDI3 Triticum turgidum Triticum spelta L. var. dicoccum Schrank TRSPD tropical bristlegrass Setaria tenacissima Schrad. SETE9 tropical crabgrass Digitaria argillacea (A.S. Hitchc. & Chase) Fern. DIAR3 tropical cupgrass Eriochloa fatmensis (Hochst. & Steud.) W.D. Clayton ERFA3 tropical dropseed Sporobolus tenuissimus (Mart. ex Schrank) Kuntze SPTE3 tropical needlegrass Nassella manicata (Desv.) Barkworth NAMA7 tropical panicgrass Panicum trichoides Sw. PATR4 tropical paspalum Paspalum pleostachyum Doell PAPL2 tropical signalgrass Urochloa distachya (L.) T. Q. Nguyen URDI5 Tuctoria greenei Orcuttia greenei Vasey ORGR Tuctoria mucronata Orcuttia mucronata Crampton ORMU2 tufted fescue Festuca airoides Lam. [excluded] FEAI tufted hairgrass Deschampsia caespitosa (L.) Beauv. DECA18 tufted lovegrass Eragrostis pectinacea (Michx.) Nees ex Steud. ERPE tufted lovegrass Eragrostis pectinacea (Michx.) Nees ex Steud. var. pectinacea ERPEP2 tufted wheatgrass Elymus macrourus (Turcz.) Tzvelev ELMA7 tumble lovegrass Eragrostis sessilispica Buckl. ERSE2 tumble windmill grass Chloris verticillata Nutt. CHVE2 tumblegrass Schedonnardus paniculatus (Nutt.) Trel. SCPA tumblegrass Schedonnardus Steud. SCHED tundra alkaligrass Puccinellia tenella (Lange) Holmb. ex Porsild PUTE tundra alkaligrass Puccinellia tenella (Lange) Holmb. ex Porsild ssp. alaskana (Scribn. & Merr.) Tzvelev PUTEA tundra alkaligrass Puccinellia tenella (Lange) Holmb. ex Porsild ssp. langeana (Berlin) Tzvelev PUTEL tundra alkaligrass Puccinellia tenella (Lange) Holmb. ex Porsild ssp. tenella PUTET tundra fescue Festuca lenensis Drobow FELE tundra wildrye Elymus sajanensis (Nevski) Tzvelev ELSA3 tundragrass Dupontia R. Br. DUPON tussock dropseed Sporobolus diandrus (Retz.) Beauv. SPDI8 tussock grass Poa flabellata (Lam.) Hook. f. [excluded] POFL18 tussock panicgrass Dichanthelium cynodon (Reichardt) C.A. Clark & Gould DICY tussock paspalum Paspalum quadrifarium Lam. PAQU6 Tweedy's reedgrass Calamagrostis tweedyi (Scribn.) Scribn. ex Vasey CATW twoflower melicgrass Melica mutica Walt. MEMU twospike crabgrass Digitaria pauciflora A.S. Hitchc. DIPA5 twospike fingergrass Eustachys floridana Chapman EUFL3 umbrella grass Enteropogon acicularis (Lindl.) Lazarides ENAC4 unbrellagrass Enteropogon Nees ENTER2 upland bentgrass Agrostis perennans (Walt.) Tuckerman AGPE Urban's lovegrass Eragrostis urbaniana A.S. Hitchc. ERUR Urochloa ?antholeuca Brachiaria xantholeuca (Schinz) Stapf BRXA2 Urochloa adspersa Brachiaria adspersa (Trin.) Parodi BRAD Urochloa adspersa Brachiaria echinulata (Mez) Parodi BREC Urochloa adspersa Panicum adspersum Trin. PAAD2 Urochloa adspersa Panicum echinulatum Mez PAEC Urochloa arizonica Brachiaria arizonica (Scribn. & Merr.) S.T. Blake BRAR7 Urochloa arizonica Panicum arizonicum Scribn. & Merr. PAAR9 Urochloa arrecta Brachiaria arrecta (Hack. ex T. Dur. & Schinz) Stent BRAR8 Urochloa brizantha Brachiaria brizantha (C. Hochstetter ex A. Rich.) Stapf BRBR Urochloa brizantha Brachiaria ruziziensis Germ. & Evrard BRRU80 Urochloa brizantha Urochloa ruziziensis (Germ. & Evrard) Crins URRU Urochloa ciliatissima Brachiaria ciliatissima (Buckl.) Chase BRCI Urochloa decumbens Brachiaria decumbens Stapf BRDE7 Urochloa deflexa Brachiaria deflexa (Schumacher) C.E. Hubbard ex Robyns BRDE8 Urochloa dictyoneura Brachiaria dictyoneura (Fig. & de Not.) Stapf [excluded] BRDI15 Urochloa distachya Brachiaria subquadripara (Trin.) A.S. Hitchc. BRSU Urochloa distachya Urochloa subquadripara (Trin.) R. Webster URSU2 Urochloa fuscata Brachiaria fasciculata (Sw.) Parodi BRFA Urochloa fuscata Brachiaria fasciculata (Sw.) Parodi var. reticulata (Torr.) Beetle BRFAR Urochloa fuscata Panicum fasciculatum Sw. PAFA6 Urochloa fuscata Panicum fasciculatum Sw. var. reticulatum (Torr.) Beal PAFAR2 Urochloa fuscata Urochloa fasciculata (Sw.) R. Webster nom. illeg. URFA Urochloa fuscata Urochloa fasciculata (Sw.) R. Webster nom. illeg. var. reticulata (Torr.) R. Webster URFAR Urochloa humidicola Brachiaria humidicola (Rendle) Schweick. BRHU6 Urochloa maxima Panicum maximum Jacq. PAMA4 Urochloa maxima Panicum maximum Jacq. var. trichoglume Robyns PAMAT2 Urochloa mutica Brachiaria mutica (Forssk.) Stapf BRMU Urochloa mutica Brachiaria purpurascens (Raddi) Henr. BRPU5 Urochloa mutica Panicum barbinode Trin. PABA6 Urochloa mutica Panicum muticum Forssk. PAMU13 Urochloa mutica Panicum purpurascens Raddi PAPU12 Urochloa oligobrachiata Brachiaria oligobrachiata (Pilger) Henr. BROL3 Urochloa oligobrachiata Brachiaria platytaenia Stapf BRPL6 Urochloa oligobrachiata Panicum oligobrachiatum Pilger PAOL8 Urochloa oligobrachiata Urochloa platytaenia (Stapf) Crins URPL3 Urochloa piligera Brachiaria piligera (F. Muell. ex Benth.) Hughes BRPI7 Urochloa piligera Brachiaria subquadripara (Trin.) A.S. Hitchc. var. piligera (F. Muell. ex Benth.) Reeder BRSUP Urochloa plantaginea Brachiaria plantaginea (Link) A.S. Hitchc. BRPL Urochloa plantaginea Panicum plantagineum Link PAPL5 Urochloa platyphylla Brachiaria extensa Chase BREX Urochloa platyphylla Brachiaria platyphylla (Munro ex Wright) Nash BRPL2 Urochloa platyphylla Paspalum platyphyllum Griseb., non J.A. Schultes PAPL6 Urochloa ramosa Brachiaria ramosa (L.) Stapf BRRA80 Urochloa ramosa Panicum ramosum L. PARA3 Urochloa reptans Brachiaria reptans (L.) Gard. & C.E. Hubbard BRRE Urochloa reptans Panicum prostratum Lam. PAPR9 Urochloa reptans Panicum reptans L. PARE9 Urochloa texana Brachiaria texana (Buckl.) S.T. Blake BRTE3 Urochloa texana Panicum texanum Buckl. PATE14 Urochloa villosa Brachiaria distichophylla (Trin.) Stapf BRDI13 Uruguayan fountaingrass Pennisetum latifolium Spreng. PELA5 Uruguayan needlegrass Nassella neesiana (Trin. & Rupr.) Barkworth NANE Uruguayan pampas grass Cortaderia selloana (J.A. & J.H. Schultes) Aschers. & Graebn. COSE4 Utah muhly Muhlenbergia curtifolia Scribn. MUCU Vahl's alkaligrass Puccinellia vahliana (Liebm.) Scribn. & Merr. PUVA3 Vahlodea atropurpurea Aira atropurpurea Wahlenb. AIAT Vahlodea atropurpurea Deschampsia atropurpurea (Wahlenb.) Scheele DEAT2 Vahlodea atropurpurea Deschampsia atropurpurea (Wahlenb.) Scheele var. latifolia (Hook.) Scribn. ex Macoun DEATL Vahlodea atropurpurea Deschampsia atropurpurea (Wahlenb.) Scheele var. paramushirensis Kudo DEATP Vahlodea atropurpurea Deschampsia atropurpurea (Wahlenb.) Scheele var. payettii Lepage DEATP2 Vahlodea atropurpurea Deschampsia pacifica Tatew. & Ohwi DEPA12 Vahlodea atropurpurea Vahlodea atropurpurea (Wahlenb.) Fries ex Hartman ssp. latifolia (Hook.) Porsild VAATL Vahlodea atropurpurea Vahlodea atropurpurea (Wahlenb.) Fries ex Hartman ssp. paramushirensis (Kudo) Hult VAATP Vahlodea atropurpurea Vahlodea flexuosa (Honda) Ohwi VAFL2 Vahlodea atropurpurea Vahlodea latifolia (Hook.) Hult VALA2 variable panicgrass Dichanthelium commutatum (J.A. Schultes) Gould DICO2 varigated cockspur grass Echinochloa picta (J. K?nig) P.W. Michael ECPI varioushair fescue Festuca heteromalla Pourret FEHE2 variousleaf fescue Festuca heterophylla Lam. FEHE Vasey's grass Paspalum urvillei Steud. PAUR2 Vaseyochloa multinervosa Melica multinervosa Vasey MEMU7 Vavilov's wheat Triticum vavilovii Jakubz. TRVA5 veldtgrass Ehrharta Thunb. EHRHA velvet bentgrass Agrostis canina L. AGCA4 velvet crabgrass Digitaria velutina (Forssk.) Beauv. DIVE2 velvet panicum Dichanthelium scoparium (Lam.) Gould DISC3 velvetgrass Holcus L. HOLCU Venezuelan panicgrass Panicum venezuelae Hack. PAVE3 Ventenata dubia Avena dubia Leers AVDU Ventenata dubia Ventenata avenacea Koel. VEAV vernalgrass Anthoxanthum L. ANTHO vetivergrass Vetiveria Bory VETIV vetivergrass Vetiveria zizanioides (L.) Nash VEZI80 Vetiveria zizanioides Anatherum zizanioides (L.) A.S. Hitchc. & Chase ANZI Vetiveria zizanioides Chrysopogon zizanioides (L.) Roberty CHZI Vetiveria zizanioides Phalaris zizanioides L. PHZI vine mesquite Panicum obtusum Kunth PAOB violet crabgrass Digitaria violascens Link DIVI2 viper grass Dinebra Jacq. DINEB viper grass Dinebra retroflexa (Vahl) Panzer DIRE7 Virginia wildrye Elymus submuticus (Hook.) Smyth & Smyth ELSU Virginia wildrye Elymus virginicus L. ELVI3 Virginia wildrye Elymus virginicus L. var. halophilus (Bickn.) Wieg. ELVIH Virginia wildrye Elymus virginicus L. var. virginicus ELVIV Virlet's paspalum Paspalum virletii Fourn. PAVI7 Volga fescue Festuca valesiaca Schleich. ex Gaudin FEVA2 Volga fescue Festuca valesiaca Schleich. ex Gaudin ssp. valesiaca FEVAV Vulpia bromoides Bromus dertonensis All. BRDE5 Vulpia bromoides Festuca bromoides L. 4-Feb Vulpia bromoides Festuca dertonensis (All.) Aschers. & Graebn. FEDE2 Vulpia bromoides Vulpia dertonensis (All.) Gola VUDE Vulpia ciliata Festuca ciliata auct. non Danthoine ex Lam. & DC., non Gouan nec Link [misapplied] FECI2 Vulpia ciliata Festuca danthonii auct. non Aschers. & Graebn. [misapplied] FEDA2 Vulpia elliotea Festuca sciurea Nutt. FESC3 Vulpia elliotea Vulpia sciurea (Nutt.) Henr. VUSC Vulpia fasciculata Vulpia membranacea auct. VUME2 Vulpia geniculata Festuca geniculata L. [excluded] FEGE Vulpia membranacea Vulpia longiseta (Brot.) Hack. VULO Vulpia microstachys var. ciliata Festuca eastwoodiae Piper FEEA Vulpia microstachys var. ciliata Festuca grayi Piper FEGR Vulpia microstachys var. ciliata Festuca microstachys Nutt. var. ciliata Beal FEMIC Vulpia microstachys var. ciliata Vulpia eastwoodiae (Piper) Henr. VUEA Vulpia microstachys var. ciliata Vulpia grayi (Piper) Henr. VUGR Vulpia microstachys var. confusa Festuca confusa Piper FECO4 Vulpia microstachys var. confusa Festuca suksdorfii Piper ex Suksdorf FESU5 Vulpia microstachys var. confusa Festuca tracyi A.S. Hitchc. FETR2 Vulpia microstachys var. confusa Vulpia confusa (Piper) Henr. VUCO Vulpia microstachys var. confusa Vulpia tracyi (A.S. Hitchc.) Henr. VUTR Vulpia microstachys var. microstachys Festuca arida Elmer FEAR Vulpia microstachys var. microstachys Festuca microstachys Nutt. FEMI2 Vulpia microstachys var. microstachys Vulpia arida (Elmer) Henr. VUAR Vulpia microstachys var. pauciflora Festuca microstachys Nutt. var. pauciflora Scribn. ex Beal FEMIP Vulpia microstachys var. pauciflora Festuca microstachys Nutt. var. simulans (Hoover) Hoover FEMIS Vulpia microstachys var. pauciflora Festuca pacifica Piper FEPA Vulpia microstachys var. pauciflora Festuca pacifica Piper var. simulans Hoover FEPAS Vulpia microstachys var. pauciflora Festuca reflexa Buckl. FERE2 Vulpia microstachys var. pauciflora Vulpia pacifica (Piper) Rydb. VUPA Vulpia microstachys var. pauciflora Vulpia reflexa (Buckl.) Rydb. VURE Vulpia myuros Festuca megalura Nutt. FEME Vulpia myuros Festuca megalura Nutt. var. hirsuta (Hack.) Aschers. & Graebn. FEMEH Vulpia myuros Festuca myuros L. FEMY2 Vulpia myuros Vulpia megalura (Nutt.) Rydb. VUME Vulpia myuros Vulpia myuros (L.) C. C. Gmel. var. myuros (L.) C. C. Gmel. [superfluous autonym] VUMYM2 Vulpia myuros Vulpia myuros (L.) K.C. Gmel. var. hirsuta Hack. VUMYH Vulpia octoflora var. glauca Festuca gracilenta Buckl. FEGR3 Vulpia octoflora var. glauca Festuca octoflora Walt. var. glauca (Nutt.) Fern. FEOCG2 Vulpia octoflora var. glauca Festuca octoflora Walt. var. tenella (Willd.) Fern. FEOCT2 Vulpia octoflora var. glauca Festuca tenella Willd. FETE2 Vulpia octoflora var. glauca Festuca tenella Willd. var. glauca Nutt. FETEG Vulpia octoflora var. glauca Vulpia octoflora (Walt.) Rydb. var. tenella (Willd.) Fern. VUOCT Vulpia octoflora var. hirtella Festuca octoflora Walt. ssp. hirtella Piper FEOCH3 Vulpia octoflora var. hirtella Festuca octoflora Walt. var. hirtella (Piper) Piper ex A.S. Hitchc. FEOCH2 Vulpia octoflora var. octoflora Festuca octoflora Walt. FEOC3 Vulpia octoflora var. octoflora Festuca octoflora Walt. var. aristulata Torr. ex L.H. Dewey FEOCA Vulpia unilateralis Nardurus maritimus (L.) Murb. NAMA5 wall barley Hordeum murinum L. ssp. murinum HOMUM wallaby grass Amphibromus Nees AMPHI9 wallaby grass Rytidosperma Steud. RYTID2 Wallowa needlegrass Achnatherum wallowaensis Maze & K.A. Robson ACWA4 Warnock's grama Bouteloua warnockii Gould & Kapadia BOWA warty panicgrass Panicum verrucosum Muhl. PAVE2 Wasatch bluegrass Poa arnowiae Soreng POAR21 Washington fescue Festuca washingtonica Alexeev FEWA water foxtail Alopecurus geniculatus L. ALGE2 water foxtail Alopecurus geniculatus L. var. geniculatus ALGEG4 water mannagrass Glyceria fluitans (L.) R. Br. GLFL2 water paspalum Paspalum hydrophilum Henr. PAHY2 water whorlgrass Catabrosa aquatica (L.) Beauv. CAAQ3 water whorlgrass Catabrosa aquatica (L.) Beauv. var. aquatica CAAQA6 watercrown grass Paspalidium Stapf PASPA watergrass Hygroryza Nees HYGRO7 watergrass Luziola Juss. LUZIO wattle signalgrass Urochloa piligera (F. Muell. ex Benth.) R. Webster URPI3 wavy hairgrass Deschampsia flexuosa (L.) Trin. DEFL wavy hairgrass Deschampsia flexuosa (L.) Trin. var. flexuosa DEFLF wavyleaf basketgrass Oplismenus hirtellus (L.) Beauv. ssp. undulatifolius (Ard.) U. Scholz OPHIU2 waxy mannagrass Glyceria declinata Br?biss. GLDE weak bluegrass Poa infirma Kunth POIN30 weak signalgrass Urochloa oligobrachiata (Pilger) Kartesz UROL Webber needlegrass Achnatherum webberi (Thurb.) Barkworth ACWE3 wedgescale Sphenopholis Scribn. SPHEN weedy brome Bromus alopecuros Poir. BRAL2 weeping alkaligrass Puccinellia distans (Jacq.) Parl. PUDI weeping alkaligrass Puccinellia distans (Jacq.) Parl. ssp. borealis (Holmb.) W.E. Hughes PUDIB weeping alkaligrass Puccinellia distans (Jacq.) Parl. ssp. distans PUDID weeping brome Bromus frondosus (Shear) Woot. & Standl. BRFR2 weeping fingergrass Eustachys distichophylla (Lag.) Nees EUDI8 weeping grass Microlaena stipoides (Labill.) R. Br. MIST weeping lovegrass Eragrostis curvula (Schrad.) Nees ERCU2 West Indian bluestem Hypogynium Nees HYPOG West Indian bluestem Hypogynium virgatum (Desv. ex Ham.) Dandy HYVI3 West Indian bristlegrass Setaria setosa (Sw.) Beauv. SESE4 West Indian bristlegrass Setaria setosa (Sw.) Beauv. var. leiophylla (Nees) Arech. SESEL2 West Indian bristlegrass Setaria setosa (Sw.) Beauv. var. setosa SESES2 West Indian dropseed Sporobolus indicus (L.) R. Br. var. pyramidalis (Beauv.) Veldkamp SPINP2 West Indian marsh grass Hymenachne amplexicaulis (Rudge) Nees HYAM2 West Indian panicgrass Panicum diffusum Sw. PADI7 western bluegrass Poa suksdorfii (Beal) Vasey ex Piper POSU10 western fescue Festuca occidentalis Hook. FEOC western needlegrass Achnatherum occidentale (Thurb.) Barkworth ACOC3 western needlegrass Achnatherum occidentale (Thurb.) Barkworth ssp. occidentale ACOCO western oat Avena occidentalis Durieu AVOC western panicgrass Dichanthelium acuminatum (Sw.) Gould & C.A. Clark var. fasciculatum (Torr.) Freckmann DIACF western wheatgrass Pascopyrum smithii (Rydb.) A. L?ve PASM wheat Triticum araraticum Jakubz. TRAR9 wheat Triticum ispahanicum Heslot TRIS2 wheat Triticum L. TRITI wheat Triticum militinae Zhuk. & Migush. TRMI15 wheat Triticum urartu Thumanian ex Gandilyan TRUR3 wheatgrass Agropyron Gaertn. AGROP2 wheatgrass Pascopyrum A. L?ve PASCO wheatgrass Pseudoroegneria (Nevski) A. L?ve PSEUD22 wheatgrass Thinopyrum A. L?ve THINO Wheeler bluegrass Poa nervosa (Hook.) Vasey PONE2 Wheeler's bluegrass Poa wheeleri Vasey POWH2 whiplash pappusgrass Pappophorum vaginatum Buckl. PAVA2 whiskered brome Bromus grossus Desf. ex DC. BRGR5 white tridens Tridens albescens (Vasey) Woot. & Standl. TRAL2 whitegrass Leersia virginica Willd. LEVI2 whitehair rosette grass Dichanthelium villosissimum (Nash) Freckmann DIVI7 whitehair rosette grass Dichanthelium villosissimum (Nash) Freckmann var. praecocius (A.S. Hitchc. & Chase) Freckmann DIVIP whitehair rosette grass Dichanthelium villosissimum (Nash) Freckmann var. villosissimum DIVIV Whiteochloa cymbiformis Panicum cymbiforme Hughes PACY6 Whitney's false oat Trisetum inaequale Whitney TRIN4 whorlgrass Catabrosa Beauv. CATAB wideleaf bamboo Sinocalamus latiflorus (Munro) McClure SILA23 wideleaf bamboo Sinocalamus McClure SINOC wideleaf gamagrass Tripsacum latifolium A.S. Hitchc. TRLA24 wideleaf polargrass Arctagrostis latifolia (R. Br.) Griseb. ARLA2 wideleaf polargrass Arctagrostis latifolia (R. Br.) Griseb. ssp. arundinacea (Trin.) Tzvelev ARLAA5 wideleaf polargrass Arctagrostis latifolia (R. Br.) Griseb. ssp. latifolia ARLAL6 Wiegand's wildrye Elymus wiegandii Fern. ELWI wild einkorn Triticum boeoticum Boiss. TRBO6 wild einkorn Triticum boeoticum Boiss. ssp. boeoticum TRBOB2 wild einkorn Triticum boeoticum Boiss. ssp. thaoudar (Reuter ex Hausskn.) Schiem. TRBOT wild oat Avena fatua L. AVFA wild sugarcane Saccharum spontaneum L. SASP wildcane Gynerium sagittatum (Aubl.) Beauv. GYSA wildcane Gynerium Willd. ex Beauv. GYNER wildrice Zizania L. ZIZAN wildrye ?Elyleymus Baum ELYLE wildrye Elymus ciliaris (Trin.) Tzvel. ELCI3 wildrye Elymus ciliaris (Trin.) Tzvel. ssp. ciliaris ELCIC wildrye Elymus gmelinii (Ledeb.) Tzvel. ELGM wildrye Elymus L. ELYMU wildrye Elymus pendulina (Nevski) Tzvel. ELPE5 wildrye Elymus tangutorum (Nevshi) Hand. ELTA wildrye Leymus Hochst. LEYMU wildrye Leymus secalinus (Georgi) Tzvel. ssp. secalinus LESES3 wildrye Leymus secalinus (Georgi) Tzvelev LESE14 wildrye Psathyrostachys Nevski PSATH2 willkommia Willkommia Hack. WILLK Wilman lovegrass Eragrostis superba Peyr. ERSU Wimmera ryegrass Lolium rigidum Gaudin LORI windmill grass Chloris Sw. CHLOR winged panicgrass Panicum alatum F. Zuloaga & O. Morrone PAAL30 winged panicgrass Panicum alatum F. Zuloaga & O. Morrone var. alatum PAALA winged panicgrass Panicum alatum F. Zuloaga & O. Morrone var. longiflorum F. Zuloaga & O. Morrone PAALL2 winged panicgrass Panicum alatum F. Zuloaga & O. Morrone var. minus (Andersson) F. Zuloaga & O. Morrone PAALM2 winter bentgrass Agrostis hyemalis (Walt.) B.S.P. AGHY wire bluestem Andropogon gracilis Spreng. ANGR5 wireleaf dropseed Sporobolus teretifolius Harper SPTE4 wirestem muhly Muhlenbergia frondosa (Poir.) Fern. MUFR2 wiry panicgrass Panicum flexile (Gattinger) Scribn. PAFL2 witchgrass Panicum capillare L. PACA6 withered bluegrass Poa marcida A.S. Hitchc. POMA6 Wolf's bluegrass Poa wolfii Scribn. POWO Wolf's trisetum Trisetum wolfii Vasey TRWO3 wolfstail Lycurus Kunth LYCUR wood bluegrass Poa nemoralis L. PONE wood bluegrass Poa nemoralis L. ssp. nemoralis PONEN2 wood reedgrass Calamagrostis perplexa Scribn. CAPE10 wood-barley Hordelymus europaeus (L.) Harz HOEU woodland bluegrass Poa sylvestris Gray POSY woodland climbing bamboo Arthrostylidium multispicatum Pilger ARMU2 woodland muhly Muhlenbergia sylvatica Torr. ex Gray MUSY woodland tribisee Lasiacis sorghoidea (Desv. ex Hamilton) A.S. Hitchc. & Chase LASO woodland tribisee Lasiacis sorghoidea (Desv. ex Hamilton) A.S. Hitchc. & Chase var. patentiflora (A.S. Hitchc. & Chase) Davidse LASOP woodland tribisee Lasiacis sorghoidea (Desv. ex Hamilton) A.S. Hitchc. & Chase var. sorghoidea LASOS woodoats Chasmanthium Link CHASM woodreed Cinna L. CINNA woody melicgrass Melica frutescens Scribn. MEFR wool grass Anthephora pubescens Nees ANPU15 woolly brome Bromus lanatipes (Shear) Rydb. BRLA6 woolly fingergrass Digitaria eriantha Steudel ssp. pentzii (Stent) Kok DIERP woolly rosette grass Dichanthelium scabriusculum (Ell.) Gould & C.A. Clark DISC2 woollygrass Dasyochloa Willd. ex Rydb. DASYO woollygrass Erioneuron Nash ERION woollysheath threeawn Aristida lanosa Muhl. ex Ell. ARLA6 woolyspike balsamscale Elionurus barbiculmis Hack. ELBA Wooton's threeawn Aristida pansa Woot. & Standl. ARPA9 Wright's alkaligrass Puccinellia wrightii (Scribn. & Merr.) Tzvelev PUWR Wright's beardgrass Bothriochloa wrightii (Hack.) Henr. BOWR2 Wright's paspalum Paspalum wrightii A.S. Hitchc. & Chase PAWR8 Wright's rosette grass Dichanthelium wrightianum (Scribn.) Freckmann DIWR3 Wright's threeawn Aristida purpurea Nutt. var. wrightii (Nash) Allred ARPUW wrinkled jointtail grass Coelorachis rugosa (Nutt.) Nash CORU3 yellow bluestem Bothriochloa ischaemum (L.) Keng BOIS yellow bluestem Bothriochloa ischaemum (L.) Keng var. ischaemum BOISI yellow bluestem Bothriochloa ischaemum (L.) Keng var. songarica (Rupr. ex Fisch. & C.A. Mey.) Celarier & Harlan BOISS yellow crabgrass Digitaria fuscescens (J. Presl) Henr. DIFU yellow foxtail Setaria pumila (Poir.) Roemer & J.A. Schultes SEPU8 yellow foxtail Setaria pumila (Poir.) Roemer & J.A. Schultes ssp. pumila SEPUP2 yellow grove bamboo Phyllostachys aureosulcata McClure PHAU80 yellow hairgrass Aira praecox L. AIPR yellow oatgrass Trisetum flavescens (L.) Beauv. TRFL5 yellow wildrye Leymus flavescens (Scribn. & J.G. Sm.) Pilger LEFL4 yerba de alambre Isachne angustifolia Nash ISAN Yukon wheatgrass Elymus calderi Barkworth ELCA22 zacale Bouteloua diversispicula J.T. Columbus BODI7 Zea mexicana Euchlaena mexicana Schrad. EUME8 Zea mexicana Zea mays L. ssp. mexicana (Schrad.) Iltis ZEMAM Zea perennis Euchlaena perennis A.S. Hitchc. EUPE15 Zhukovsky's wheat Triticum zhukovskyi Menabde & Ericzjan TRZH Zingeria pisidica Agrostis densior Hack. ex Grecescu AGDE9 Zizania aquatica var. aquatica Zizania aquatica L. var. subbrevis Boivin ZIAQS Zizania latifolia Zizania caduciflora (Trin.) Hand.-Mazz. ZICA2 Zizania palustris var. interior Zizania aquatica L. var. interior Fassett ZIAQI Zizania palustris var. palustris Zizania aquatica L. ssp. angustifolia (A.S. Hitchc.) Tzvelev ZIAQA3 Zizania palustris var. palustris Zizania aquatica L. var. angustifolia A.S. Hitchc. ZIAQA Zizaniopsis miliacea Zizania miliacea Michx. ZIMI3 Zoysia matrella var. matrella Agrostis matrella L. AGMA9 Zoysia tenuifolia Zoysia matrella (L.) Merr. ssp. tenuifolia (Willd. ex Thiele) T. Koyama ZOMAT2 Zoysia tenuifolia Zoysia matrella (L.) Merr. var. tenuifolia (Willd. ex Thiele) Sasaki ZOMAT Zulu fescue Fingerhuthia africana Lehm. FIAF Zulu fescue Fingerhuthia Nees FINGE

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