Pontederia subovata (Seubert) Lowden in Rhodora 75: 478. 1973 sec. Charles N. Horn & al. 1994
- ≡Eichhornia subovata Seubert in Martius, Fl. Bras. 3: 91. 1847
- ≡Reussia subovata (Seubert) Solms-Laubach in A.L.P.P. de Candolle, Monogr. Phan. 4: 534. 1883
- =Pontederia schomburgkiana Klotzsch in Schomburgk, Reis. Blf-Biliana 3: 1118. 1849
