| Common Name | Scientific Name | Code |
| n/a | Deutzia ?lemoinei Lemoine ex Bois | DELE9 |
| n/a | Deutzia ?magnifica (Lem.) Rehd. [crenata ? longifolia] | DEMA10 |
| n/a | Deutzia glabrata Kom. | DEGL11 |
| n/a | Philadelphus ?virginalis Rehder | PHVI16 |
| n/a | Philadelphus kansuensis (Rehder) S. Y. Hu | PHKA7 |
| n/a | Philadelphus satsumanus Siebold ex Miq. | PHSA13 |
| n/a | Philadelphus schrenkii Rupr. | PHSC11 |
| n/a | Philadelphus tenuifolius Rupr. & Maxim. | PHTE15 |
| n/a | Schizophragma hydrangeoides Sieb. & Zucc. [excluded] | SCHY8 |
| n/a | Schizophragma Siebold & Zucc. | SCHIZ12 |
| ashy hydrangea | Hydrangea cinerea Small | HYCI3 |
| broussaisia | Broussaisia Gaud. | BROUS2 |
| Broussaisia arguta | Broussaisia arguta Gaud. var. pellucida (Gaud.) Fosberg | BRARP |
| California mock orange | Philadelphus californicus Benth. | PHCA18 |
| canyon mock orange | Philadelphus ernestii Hu | PHER |
| cliff fendlerbush | Fendlera rupicola Gray | FERU |
| cliffbush | Jamesia Torr. & Gray | JAMES |
| Columbian mock orange | Philadelphus trichothecus Hu | PHTR3 |
| common whipplea | Whipplea modesta Torr. | WHMO |
| crenate pride-of-Rochester | Deutzia crenata Sieb. & Zucc. | DECR |
| decumaria | Decumaria L. | DECUM |
| desert mountain mock orange | Philadelphus madrensis Hemsl. | PHMA8 |
| Deutzia ?lemoinei | Deutzia ?lemoinei Lemoine ex Bois var. compacta Lemoine | DELEC2 |
| Deutzia scabra | Deutzia scabra Thunb. var. candidissima (Froebel) Rehd. | DESCC |
| dwarf mock orange | Philadelphus pumilus Rydb. | PHPU15 |
| dwarf mock orange | Philadelphus pumilus Rydb. var. ovatus Hu | PHPUO |
| dwarf mock orange | Philadelphus pumilus Rydb. var. pumilus | PHPUP2 |
| evergreen mock orange | Philadelphus karwinskianus Koehne | PHKA4 |
| Fendlera rigida | Fendlera linearis auct. non Rehd. [misapplied] | FELI2 |
| Fendlera rupicola | Fendlera rupicola Gray var. falcata (Thornb.) Rehd. | FERUF |
| Fendlera wrightii | Fendlera rupicola Gray var. wrightii Gray | FERUW |
| fendlerbush | Fendlera Engelm. & Gray | FENDL |
| fendlerbush | Fendlerella Heller | FENDL2 |
| fivepetal cliffbush | Jamesia americana Torr. & Gray | JAAM |
| fivepetal cliffbush | Jamesia americana Torr. & Gray var. americana | JAAMA |
| fivepetal cliffbush | Jamesia americana Torr. & Gray var. macrocalyx (Small) Engl. | JAAMM |
| fivepetal cliffbush | Jamesia americana Torr. & Gray var. rosea J.A. Purpus ex Schneid. | JAAMR |
| Florida mock orange | Philadelphus floridus Beadle | PHFL4 |
| fourpetal cliffbush | Jamesia tetrapetala N.& P. Holmgren | JATE2 |
| French hydrangea | Hydrangea macrophylla (Thunb.) Ser. | HYMA7 |
| fuzzy mock orange | Philadelphus tomentosus Royle | PHTO7 |
| fuzzy pride-of-Rochester | Deutzia scabra Thunb. | DESC4 |
| Gattinger's mock orange | Philadelphus gattingeri Hu | PHGA |
| golden mock orange | Philadelphus caucasicus Koehne [excluded] | PHCA44 |
| heartleaf mock orange | Philadelphus cordifolius Lange | PHCO32 |
| Hitchcock's mock orange | Philadelphus hitchcockianus Hu | PHHI3 |
| hoary mock orange | Philadelphus pubescens Loisel. | PHPU4 |
| hoary mock orange | Philadelphus pubescens Loisel. var. intectus (Beadle) A.H. Moore | PHPUI2 |
| hoary mock orange | Philadelphus pubescens Loisel. var. pubescens | PHPUP |
| hydrangea | Hydrangea L. | HYDRA |
| Hydrangea arborescens | Hydrangea arborescens L. var. oblonga Torr. & Gray | HYARO |
| Hydrangea arborescens | Hydrangea arborescens L. var. sterilis Torr. & Gray | HYARS |
| Hydrangea cinerea | Hydrangea arborescens L. ssp. discolor (Ser. ex DC.) McClintock | HYARD2 |
| Hydrangea cinerea | Hydrangea arborescens L. var. deamii St. John | HYARD4 |
| Hydrangea cinerea | Hydrangea arborescens L. var. discolor Ser. ex DC. | HYARD3 |
| Hydrangea cinerea | Hydrangea ashei Harbison | HYAS2 |
| Hydrangea radiata | Hydrangea arborescens L. ssp. radiata (Walt.) McClintock | HYARR |
| Jamesia americana var. rosea | Edwinia californica Small | EDCA |
| Jamesia americana var. rosea | Jamesia americana Torr. & Gray ssp. californica (Small) E. Murr. | JAAMC2 |
| Jamesia americana var. rosea | Jamesia americana Torr. & Gray var. californica (Small) Jepson | JAAMC |
| kanawao | Broussaisia arguta Gaud. | BRAR6 |
| Lewis's mock orange | Philadelphus lewisii Pursh | PHLE4 |
| littleleaf mock orange | Philadelphus microphyllus Gray | PHMI4 |
| Mearns's mock orange | Philadelphus mearnsii W.H. Evans ex Koehne | PHME4 |
| mock orange | Philadelphus L. | PHILA |
| Mongolian pride-of-Rochester | Deutzia parviflora Bunge | DEPA10 |
| oakleaf hydrangea | Hydrangea quercifolia Bartr. | HYQU3 |
| Oregon mock orange | Philadelphus oreganus Nutt. ex Torr. & Gray | PHOR4 |
| Palmer's mock orange | Philadelphus palmeri Rydb. | PHPA11 |
| panicled hydrangea | Hydrangea paniculata Sieb. | HYPA |
| Philadelphus ?insignis | Philadelphus insignis Carr. [hybrid] | PHIN21 |
| Philadelphus argenteus | Philadelphus microphyllus Gray ssp. argenteus (Rydb.) C.L. Hitchc. | PHMIA4 |
| Philadelphus argenteus | Philadelphus microphyllus Gray var. argenteus (Rydb.) Kearney & Peebles | PHMIA3 |
| Philadelphus argyrocalyx | Philadelphus microphyllus Gray ssp. argyrocalyx (Woot.) C.L. Hitchc. | PHMIA2 |
| Philadelphus californicus | Philadelphus gordonianus Lindl. var. columbianus (Koehne) Rehd. | PHGOC |
| Philadelphus californicus | Philadelphus lewisii Pursh ssp. californicus (Benth.) Munz | PHLEC |
| Philadelphus hirsutus | Philadelphus hirsutus Nutt. var. intermedius Hu | PHHII |
| Philadelphus hirsutus | Philadelphus hirsutus Nutt. var. nanus Hu | PHHIN |
| Philadelphus inodorus | Philadelphus gloriosus Beadle | PHGL9 |
| Philadelphus inodorus | Philadelphus grandiflorus Willd. | PHGR18 |
| Philadelphus inodorus | Philadelphus inodorus L. var. carolinus Hu | PHINC |
| Philadelphus inodorus | Philadelphus inodorus L. var. grandiflorus (Willd.) Gray | PHING |
| Philadelphus inodorus | Philadelphus inodorus L. var. laxus (Schrad.) Hu | PHINL |
| Philadelphus inodorus | Philadelphus inodorus L. var. strigosus Beadle | PHINS |
| Philadelphus kansuensis | Philadelphus pekinensis Rupr. var. kansuensis Rehder | PHPEK |
| Philadelphus lewisii | Philadelphus gordonianus Lindl. | PHGO4 |
| Philadelphus lewisii | Philadelphus lewisii Pursh ssp. gordonianus (Lindl.) Munz | PHLEG |
| Philadelphus lewisii | Philadelphus lewisii Pursh var. angustifolius (Rydb.) Hu | PHLEA |
| Philadelphus lewisii | Philadelphus lewisii Pursh var. ellipticus Hu | PHLEE |
| Philadelphus lewisii | Philadelphus lewisii Pursh var. gordonianus (Lindl.) Jepson | PHLEG2 |
| Philadelphus lewisii | Philadelphus lewisii Pursh var. helleri (Rydb.) Hu | PHLEH |
| Philadelphus lewisii | Philadelphus lewisii Pursh var. intermedius (A. Nels.) Hu | PHLEI |
| Philadelphus lewisii | Philadelphus lewisii Pursh var. oblongifolius Hu | PHLEO |
| Philadelphus lewisii | Philadelphus lewisii Pursh var. parvifolius Hu | PHLEP2 |
| Philadelphus lewisii | Philadelphus lewisii Pursh var. platyphyllus (Rydb.) Hu | PHLEP3 |
| Philadelphus microphyllus | Philadelphus microphyllus Gray ssp. occidentalis (A. Nels.) C.L. Hitchc. | PHMIO4 |
| Philadelphus microphyllus | Philadelphus microphyllus Gray ssp. stramineus (Rydb.) C.L. Hitchc. | PHMIS |
| Philadelphus microphyllus | Philadelphus microphyllus Gray ssp. typicus C.L. Hitchc. | PHMIT |
| Philadelphus microphyllus | Philadelphus microphyllus Gray var. linearis Hu | PHMIL |
| Philadelphus microphyllus | Philadelphus microphyllus Gray var. minutus (Rydb.) Hu | PHMIM2 |
| Philadelphus microphyllus | Philadelphus microphyllus Gray var. occidentalis (A. Nels.) Dorn | PHMIO3 |
| Philadelphus microphyllus | Philadelphus microphyllus Gray var. ovatus Hu | PHMIO2 |
| Philadelphus microphyllus | Philadelphus occidentalis A. Nels. | PHOC2 |
| Philadelphus microphyllus | Philadelphus occidentalis A. Nels. var. occidentalis A. Nels. [superfluous autonym] | PHOCO |
| Philadelphus microphyllus | Philadelphus stramineus Rydb. | PHST10 |
| Philadelphus pubescens var. intectus | Philadelphus intectus Beadle | PHIN22 |
| Philadelphus pubescens var. intectus | Philadelphus intectus Beadle var. pubigerus Hu | PHINP |
| Philadelphus pubescens var. pubescens | Philadelphus latifolius Schrad. ex DC. | PHLA12 |
| Philadelphus pubescens var. pubescens | Philadelphus pubescens Loisel. var. verrucosus (Schrad.) Hu | PHPUV |
| Philadelphus pumilus var. pumilus | Philadelphus microphyllus Gray ssp. pumilus (Rydb.) C.L. Hitchc. | PHMIP |
| Philadelphus satsumanus | Philadelphus yokohamae Dippel | PHYO |
| Philadelphus sharpianus | Philadelphus sharpianus Hu var. parviflorus Hu | PHSHP |
| Philadelphus texensis | Philadelphus texensis Hu var. coryanus Hu | PHTEC |
| Philadelphus texensis | Philadelphus texensis Hu var. texensis Hu [superfluous autonym] | PHTET |
| Piper's mock orange | Philadelphus confusus Piper | PHCO25 |
| pride-of-Rochester | Deutzia Thunb. | DEUTZ |
| scentless mock orange | Philadelphus inodorus L. | PHIN5 |
| Sharp's mock orange | Philadelphus sharpianus Hu | PHSH |
| silver mock orange | Philadelphus argenteus Rydb. | PHAR12 |
| silvercup mock orange | Philadelphus argyrocalyx Woot. | PHAR10 |
| silverleaf hydrangea | Hydrangea radiata Walt. | HYRA6 |
| slender pride of Rochester | Deutzia gracilis Sieb. & Zucc. | DEGR3 |
| spotted mock orange | Philadelphus maculatus (C.L. Hitchc.) Hu | PHMA7 |
| stiff fendlerbush | Fendlera rigida I.M. Johnston | FERI2 |
| streambank mock orange | Philadelphus hirsutus Nutt. | PHHI2 |
| summer mock orange | Philadelphus ?insignis Carr. (pro sp.) [lewisii ? californicus] | PHIN32 |
| sweet mock orange | Philadelphus coronarius L. | PHCO7 |
| Texas mock orange | Philadelphus texensis Hu | PHTE3 |
| thymeleaf mock orange | Philadelphus serpyllifolius Gray | PHSE2 |
| TransPecos mock orange | Philadelphus crinitus (C.L. Hitchc.) Hu | PHCR3 |
| tree anemone | Carpenteria californica Torr. | CACA17 |
| tree anemone | Carpenteria Torr. | CARPE |
| Utah fendlerbush | Fendlerella utahensis (S. Wats.) Heller | FEUT |
| Utah fendlerbush | Fendlerella utahensis (S. Wats.) Heller var. cymosa (Greene ex Woot. & Standl.) Kearney & Peebles | FEUTC |
| Utah fendlerbush | Fendlerella utahensis (S. Wats.) Heller var. utahensis | FEUTU |
| whipplea | Whipplea Torr. | WHIPP |
| wild hydrangea | Hydrangea arborescens L. | HYAR |
| woodvamp | Decumaria barbara L. | DEBA4 |
| Wooton's mock orange | Philadelphus wootonii Hu | PHWO |
| Wright's fendlerbush | Fendlera wrightii (Gray) Heller | FEWR |
| Zeller's mock orange | Philadelphus zelleri Hu | PHZE |
| Zion cliffbush | Jamesia americana Torr. & Gray var. zionis N.& P. Holmgren | JAAMZ |