Helanthium
Helanthium is a genus of plants in the Alismataceae, native to the Western Hemisphere. At present, three species are recognized:
- Helanthium bolivianum Lehtonen & Myllys - southern Mexico, West Indies, Central America, South America
- Helanthium tenellum J.G.Sm. in N.L.Britton - eastern United States, southern Mexico, West Indies, Central America, South America
- Helanthium zombiense Lehtonen & Myllys - Jamaica, Island of Guadeloupe