This taxon name is not current. The available references for this name are:
Eichhornia crassipes (Mart.) Solms is more recently known as Pontederia crassipes Mart.
Reason See M.O.O. Pellegrini et al. in PhytoKeys 108:63 (2018)
See also: A longer explanation of these and other terms in our Plant Names Primer.
A taxon name that is no longer current will retain its ‘Threatened’, ‘Extinct’, or ‘Extinct in the Wild’ status until a new name has been published in a Biodiversity Conservation Order.