{{Short description|Genus of aquatic plants}} {{automatic taxobox |image = Helanthium bolivianum kz01.jpg |image_caption = ''Helanthium bolivianum'' |taxon = Helanthium |authority = (Benth. & Hook.f.) Engelm. ex J.G.Sm.<ref>Engelmann, Georg ex Smith, Jared Gage in Britton, Nathaniel Lord. 1905. Manual of the Botany of the Northern United States. Second Edition 54.</ref> |type_species = ''Helanthium tenellum'' |type_species_authority = (Mart. ex Schult. & Schult. f.) Britton. |subdivision_ranks = Species |subdivision = See text |synonyms = }}

'''''Helanthium''''' is a genus of plants in the Alismataceae, native to the Western Hemisphere. At present (May 2014), three species are recognized:<ref>[http://apps.kew.org/wcsp/namedetail.do?name_id=371668 Kew World Checklist of Selected Plant Families]{{Dead link|date=July 2024 |bot=InternetArchiveBot |fix-attempted=yes }}</ref>

*''Helanthium bolivianum'' <small>(Rusby) Lehtonen & Myllys</small> - southern Mexico, West Indies, Central America, South America *''Helanthium tenellum'' <small>(Mart. ex Schult.f.) J.G.Sm. in N.L.Britton</small> - eastern United States (from Texas to Florida, north to Michigan and Massachusetts), southern Mexico, West Indies, Central America, South America *''Helanthium zombiense'' <small>(Jérémie) Lehtonen & Myllys</small> - Jamaica, Island of Guadeloupe

== References == {{Reflist}}

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Category:Alismataceae Category:Alismataceae genera Category:Aquatic plants

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