Pontederia crassipes Mart. Pontederia crassipes Mart., Nov. Gen. Sp. Pl. 1: 9. 1824 sec. Stevens 2001≡Eichhornia crassipes (Mart.) Solms in A.L.P.de Candolle & A.C.P.de Candolle (eds.), Monogr. Phan. 4: 527. 1883 syn. sec. Stevens 2001