{{Short description|Genus of flowering plants}} {{Automatic taxobox |image = Nymphoides ezannoi (aka).jpg |image_caption = ''Nymphoides ezannoi'' |taxon = Nymphoides |authority = Ség. 1754 |subdivision_ranks = Species |subdivision = See text }}
'''''Nymphoides''''', or '''floatingheart''',<ref>{{PLANTS|id=NYMPH2|taxon=Nymphoides|accessdate=21 July 2015}}</ref> is a genus of aquatic flowering plants in the family Menyanthaceae. The genus name refers to their resemblance to the water lily ''Nymphaea''. ''Nymphoides'' are aquatic plants with submerged roots and floating leaves that hold the small flowers above the water surface. Flowers are sympetalous, most often divided into five lobes (petals). The petals are either yellow or white and may be adorned with lateral wings or covered in small hairs. The inflorescence consists of either an umbellate cluster of flowers or a lax raceme, with internodes occurring between generally paired flowers.
thumb|160px|left|flower of ''Nymphoides indica'' thumb|160px|left|flower of ''Nymphoides ezannoi'' {{Globalize|section|a US-centric POV|date=September 2025}} Species of ''Nymphoides'' are sold as aquarium plants, including the "banana plant", ''N. aquatica'' and the "water snowflake", ''N. indica''. Species native to the United States are ''N. cordata'' in the northeast and ''N. aquatica'' in the southeast. ''Nymphoides peltata'' is native to Europe and Asia but can be found in the United States as an invasive aquatic weed. The non-native species ''N. cristata'' and ''N. indica'' also reportedly occur in Florida (Jacono 2000).
''Nymphoides hydrophylla'''s slim stems (spears) are eaten as a vegetable in Taiwan.
Numerous species of ''Nymphoides'' grow in Australia, and others exist in Africa, America, and Asia.
;Species thumb|180px|''Nymphoides indica'' thumb|180px|''Nymphoides aquatica'' thumb|180px|''Nymphoides cordata'' thumb|180px|''Nymphoides peltata'' thumb|180px|''Nymphoides coreana'' thumb|180px|''Nymphoides hydrophylla'' thumb|180px|''Nymphoides krishnakesara'' There are approximately 50 species of ''Nymphoides'', including:
Pantropical: * ''Nymphoides indica'' (L.) Kuntze
Africa: * ''Nymphoides bosseri'' A.Raynal * ''Nymphoides brevipedicellata'' (Vatke) A.Raynal * ''Nymphoides elegans'' A.Raynal * ''Nymphoides ezannoi'' Berhaut * ''Nymphoides forbesiana'' (Griseb.) Kuntze * ''Nymphoides guineensis'' A.Raynal * ''Nymphoides humilis'' A.Raynal * ''Nymphoides milnei'' A.Raynal * ''Nymphoides moratiana'' A.Raynal * ''Nymphoides rautaneni'' (N.E.Br.) A.Raynal * ''Nymphoides tenuissima'' A.Raynal * ''Nymphoides thunbergiana'' (Griseb.) Kuntze
North America: * ''Nymphoides aquatica'' (J.F.Gmel.) Kuntze * ''Nymphoides cordata'' (Elliott) Fernald
Central and South America: * ''Nymphoides fallax'' Ornduff * ''Nymphoides flaccida'' L.Sm. * ''Nymphoides grayana'' (Griseb.) Kuntze * ''Nymphoides herzogii'' A.Galàn-Mera & G.Navarro * ''Nymphoides humboldtiana'' (Kunth) Kuntze * ''Nymphoides microphylla'' (A.St.-Hil.) Kuntze * ''Nymphoides verrucosa'' (R.E.Fries)A.Galàn-Mera & G.Navarro
Eurasia: * ''Nymphoides peltata'' (S.G.Gmel.) Kuntze
Asia: * ''Nymphoides balakrishnanii'' P.Biju, Josekutty, Haneef & Augustine * ''Nymphoides coreana'' (Léveille) Hara * ''Nymphoides hastata'' (Dop) Kerr * ''Nymphoides hydrophylla'' (Lour.) Kuntze * ''Nymphoides krishnakesara'' K.T.Joseph & Sivar. * ''Nymphoides lungtanensis'' S.P.Li, T.H.Hsieh & C.C.Lin * ''Nymphoides macrospermum'' Vasudevan * ''Nymphoides siamensis'' (Ostenf.) Kerr * ''Nymphoides sivarajanii'' K.T.Joseph * ''Nymphoides tonkinensis'' (Dop) P.H.Ho
Asia and Australia: * ''Nymphoides aurantiaca'' (Dalzell) Kuntze * ''Nymphoides parvifolia'' (Wall.) Kuntze
Australia: * ''Nymphoides beaglensis'' Aston * ''Nymphoides crenata'' (F.Muell.) Kuntze * ''Nymphoides disperma'' Aston * ''Nymphoides elliptica'' Aston * ''Nymphoides exigua'' (F.Muell.) Kuntze * ''Nymphoides exiliflora'' (F.Muell.) Kuntze * ''Nymphoides furculifolia'' Specht * ''Nymphoides geminata'' (R.Br.) Kuntze * ''Nymphoides hydrocharioides'' (F.Muell.) Kuntze * ''Nymphoides montana'' Aston * ''Nymphoides planosperma'' Aston * ''Nymphoides quadriloba'' Aston * ''Nymphoides simulans'' Aston * ''Nymphoides spinulosperma'' Aston * ''Nymphoides spongiosa'' Aston * ''Nymphoides stygia'' (J.M.Black) H.Eichler * ''Nymphoides subacuta'' Aston * ''Nymphoides triangularis'' Aston
==References== {{Reflist}} *[https://www.fcsc.usgs.gov/Nonindigenous_Species/nymphoides.pdf Jacono, C. 2000. Know ''Nymphoides''. ''Aquaphyte'' 22 (supplemental insert)]{{dead link|date=February 2018 |bot=InternetArchiveBot |fix-attempted=yes }} *[http://www.aquagreen.com.au/plant_data/Nymphoides_minima.html Nymphoides minima]
{{Taxonbar|from=Q158196}} {{Authority control}}
Category:Nymphoides Category:Asterales genera