Eichhornia

Contains 3 accepted taxa overall.

Characteristics
Eichhornia Kunth
PONTEDERIACEAE
WATER-HYACINTH
View USF Herbarium specimens of this family
Classification
COMMELINALES
Eichhornia
Citation
EICHHORNIA Kunth, Enum. Pl. 4: 129. 1843, nom. cons. vs. Piaropus Rafinesque 1837.
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TYPE: Eichhornia azurea (Swartz) Kunth, typ. cons. (Pontederia azurea Swartz)
Distribution Map Present

This species have been reported in the counties highlighted.

Species
Scientific Name Common Name Herbarium Specimens Status Photos
Eichhornia azurea ROOTED WATER-HYACINTH Not Native OBL (NWPL)
Eichhornia crassipes COMMON WATER-HYACINTH Not Native OBL (NWPL) Y
Eichhornia paniculata BRAZILIAN WATER-HYACINTH Not Native OBL (NWPL)
Identification Key
1.  Stems erect, not stoloniferous; leaf blade base cordate; inflorescence paniculate (Pontederia subg. Cabanisia)
E. paniculata
1.  Stems trailing, often stoloniferous; leaf blade base rounded to truncate; inflorescence spicate
2
2.  Plants typically rooted in mud; sessile leaves alternate on elongate stem; inflated petioles absent; perianth limb lobe margins erose (Pontederia subg. Eichhornia)
E. azurea
2.  Plants typically free-floating or stranded; sessile leaves produced in rosette; petioles commonly inflated; perianth limb lobe margins entire (Pontederia subg. Oshunae)
E. crassipes
Genus Synonyms
Synonym Full Citation Basionym Type
Cabanisia Cabanisia Klotzsch ex Schlechtendal, Abh. Naturf. Ges. Halle 6: 176. 1862. TYPE: Cabanisia martiana Schlechtendal, nom. illegit. (Pontederia paradoxa Martius)
Leptosomus Leptosomus Schlechtendal, Abh. Naturf. Ges. Halle 6: 174. 1862. TYPE: Leptosomus natans (Palisot de Beauvois) Schlechtendal (Pontederia natans Palisot de Beauvois)
Piaropus Piaropus Rafinesque, Fl. Tellur. 2: 81. 1837 ("1836"), nom. rej. vs. Eichhornia Kunth 1843. TYPE: = Eichhornia Kunth 1842.