Eichhornia azurea Eichhornia azurea (Swartz) Kunth in Eichhornia 4. 1842 sec. Charles N. Horn & al. 1994≡Pontederia azurea Swartz in Prodr. 57. 1788≡Piaropus azureus (Swartz) Rafinesque in Fl. Tell. 2: 82. 1837Holotype: Jamaica, Swartz s.n.
