This name is a synonym of Eichhornia crassipes (Mart.) Solms.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 26100065) with original publication details: Abh. Nat. Ges. Halle 6: 177. 1862. .
This name was in version 1 of The Plant List, record tro-26100065.