| Common Name | Scientific Name | Code |
|---|
| n/a | Landoltia D.H. Les & D.J. Crawford | LANDO2 |
| Asian watermeal | Wolffia globosa (Roxb.) den Hartog & Plas | WOGL3 |
| bogmat | Wolffiella Hegelm. | WOLFF2 |
| Brazilian watermeal | Wolffia brasiliensis Weddell | WOBR |
| Columbian watermeal | Wolffia columbiana Karst. | WOCO |
| common duckmeat | Spirodela polyrrhiza (L.) Schleid. | SPPO |
| common duckweed | Lemna minor L. | LEMI3 |
| dotted duckmeat | Landoltia punctata (G.F.W. Mey.) D.H. Les & D.J. Crawford | LAPU12 |
| duckmeat | Spirodela Schleid. | SPIRO |
| duckweed | Lemna L. | LEMNA |
| Florida mudmidget | Wolffiella gladiata (Hegelm.) Hegelm. | WOGL2 |
| intermediate duckweed | Spirodela intermedia Koch | SPIN8 |
| Landoltia punctata | Spirodela oligorrhiza (Kurz) Hegelm. | SPOL2 |
| Landoltia punctata | Spirodela punctata (G.F.W. Mey.) C.H. Thompson | SPPU4 |
| least duckweed | Lemna minuta Kunth | LEMI6 |
| Lemna aequinoctialis | Lemna angolensis Welw. ex Hegelm. | LEAN5 |
| Lemna aequinoctialis | Lemna paucicostata Hegelm. | LEPA16 |
| Lemna aequinoctialis | Lemna trinervis (Austin) Small | LETR3 |
| Lemna minor | Lemna cyclostasa Ell. ex Schleid. | LECY4 |
| Lemna minor | Lemna minima Chev. ex Schleid. | LEMI2 |
| Lemna minuta | Lemna minima Phil. ex Hegelm., non Thuill. ex Beauv. | LEMI10 |
| Lemna minuta | Lemna minuscula Herter | LEMI9 |
| Lemna minuta | Lemna valdiviana Phil. var. abbreviata Hegelm. | LEVAA |
| Lemna minuta | Lemna valdiviana Phil. var. minima Hegelm. | LEVAM |
| Lemna obscura | Lemna minor L. var. obscura Austin | LEMIO |
| Lemna perpusilla | Lemna perpusilla Torr. var. trinervis Austin | LEPET |
| Lemna valdiviana | Lemna cyclostasa (Ell.) C.H. Thompson | LECY5 |
| Lemna valdiviana | Lemna torreyi Austin | LETO3 |
| lesser duckweed | Lemna aequinoctialis Welw. | LEAE2 |
| little duckweed | Lemna obscura (Austin) Daubs | LEOB2 |
| minute duckweed | Lemna perpusilla Torr. | LEPE |
| northern watermeal | Wolffia borealis (Engelm. ex Hegelm.) Landolt ex Landolt & Wildi | WOBO |
| pond bogmat | Wolffiella welwitschii (Hegelm.) Monod | WOWE |
| saber bogmat | Wolffiella oblonga (Phil.) Hegelm. | WOOB |
| Spirodela polyrrhiza | Lemna polyrrhiza L. | LEPO21 |
| Spirodela polyrrhiza | Spirodela polyrhiza (L.) Schleiden [orthographic variant] | SPPO8 |
| Spirodela polyrrhiza | Spirodela polyrrhiza (L.) Schleid. var. masonii Daubs | SPPOM |
| spotless watermeal | Wolffia arrhiza (L.) Horkel ex C.F.H. Wimmer | WOAR2 |
| star duckweed | Lemna trisulca L. | LETR |
| swollen duckweed | Lemna gibba L. | LEGI |
| tongueshape bogmat | Wolffiella lingulata (Hegelm.) Hegelm. | WOLI |
| turion duckweed | Lemna turionifera Landolt | LETU2 |
| valdivia duckweed | Lemna valdiviana Phil. | LEVA |
| watermeal | Wolffia Horkel ex Schleid. | WOLFF |
| Wolffia borealis | Wolffia punctata auct. non Griseb. [misapplied] | WOPU |
| Wolffia brasiliensis | Bruniera punctata (Griseb.) Nieuwl. | BRPU14 |
| Wolffia brasiliensis | Wolffia papulifera C.H. Thompson | WOPA |
| Wolffia brasiliensis | Wolffia punctata Griseb. | WOPU2 |
| Wolffia columbiana | Bruniera columbiana (Karst.) Nieuwl. | BRCO10 |
| Wolffia globosa | Wolffia cylindracea Hegelm. | WOCY |
| Wolffiella gladiata | Wolffia floridana (J.D. Sm.) J.D. Sm. ex Hegelm. | WOFL2 |
| Wolffiella gladiata | Wolffia gladiata Hegelm. | WOGL4 |
| Wolffiella gladiata | Wolffia gladiata Hegelm. var. floridana J.D. Sm. | WOGLF |
| Wolffiella gladiata | Wolffiella floridana (J.D. Sm.) C.H. Thompson | WOFL |
| Wolffiella lingulata | Wolffia lingulata Hegelm. | WOLI2 |
| Wolffiella oblonga | Lemna oblonga Phil. | LEOB4 |
| Wolffiella welwitschii | Wolffiopsis welwitschii (Hegelm.) den Hartog & Plas | WOWE2 |
Plant List