Narukila Adans. genus synonym

Leptanthus Michx. genus synonym

Leptosomus Schltdl. genus synonym

Schollera Schreb. genus synonym

Umsema Raf. genus synonym

Phrynium Loefl. ex Kuntze genus synonym

Eichhornia Kunth genus synonym

Heterandra P.Beauv. genus synonym

Monochoria K.B.Presl, 1827 genus doubtful

Hookerina Kuntze genus synonym

Carigola Raf. genus synonym

Lunania Raf. genus synonym

Triexastima Raf. genus synonym

Hirschtia K.Schum. ex Schwartz genus synonym

Eurystemon Alexander genus synonym

Limnostachys F.Muell. genus synonym

Calcarunia Raf. genus synonym

Heteranthera Ruiz & Pav. genus accepted

Scholleropsis H.Perrier genus synonym

Gomphima Raf. genus synonym

Reussia Endl. genus synonym

Zosterella Small genus synonym

Cabanisia Kotschy ex Schltdl. genus synonym

Ancylosceles genus doubtful

Eichornia A.Rich. genus synonym

Pontederas Hoffmanns. genus synonym

Kadakia Raf. genus synonym

Piaropus Raf. genus synonym

Buchosia Vell. genus synonym

Monochorla genus accepted

Unisema Raf. genus synonym

Eichorniopsis M.Fiore, 1936 genus doubtful

Pontederites Knowlton, 1922 genus accepted

Hydrothrix Hook.f. genus synonym

Pontederia gen. Oshunae M.Pell. & C.N.Horn, 2018 genus doubtful

Michelia Adans. genus synonym

Pontederia L. genus accepted

Phrynium Loefl., 1758 genus synonym

Monochoria C.Presl genus synonym