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This genus is accepted, and its native range is Cosmopolitan.

[FSOM]

M. Thulin et al. Flora of Somalia, Vol. 1-4 [updated 2008] https://plants.jstor.org/collection/FLOS

Habit
Aquatic herbs; stems long, petiole-like
Leaves
Leaves floating, shortly petiolate, cordate at the base
Inflorescences
Flowers bisexual (in Somalia), solitary or clustered at the nodes, subtended by a small bract, 5(–8)-merous
Corolla
Corolla white or yellow, with variously fimbriate lobes; tube with tufts of hairs ± halfway up
Stamens
Stamens 5(–8), inserted at or below the throat of the corolla
Ovary
Ovary with 5 basal glands
Fruits
Capsule irregularly dehiscent or indehiscent
Seeds
Seeds globose to oval, flattened or convex, smooth to tuberculate.
Distribution
Cosmopolitan genus of over 50 species.

[FZ]

Menyanthaceae, Barbara Mackinder. Flora Zambesiaca 7:4. 1990

Habit
Aquatic herbs, annual or perennial.
Leaves
Leaves simple, circular to ovate, with a sinus at the base, in a rosette on the stock, or alternate along floating stolons.
Flowers
Flowers clustered at the nodes, pedicellate, subtended by a small bract, 5(8)-merous, sometimes heterostylous, elsewhere sometimes unisexual.
Fruits
Capsule developing under water, splitting into valves from base or apex.
Seeds
Seeds round to oval, flattened or convex, smooth to tuberculate.

[FTEA]

Menyanthaceae, Christopher Whitehouse. Flora of Tropical East Africa. 1996

Stamens
Stamens 5(-8), inserted at or below the corolla-throat
Ovary
Ovary with 5 basal glands
Fruits
Capsule indehiscent or irregularly rupturing
Seeds
Seeds round to oval, flattened or convex, smooth to tuberculate.
Habit
Aquatic herbs
Stem
Stems long, petiole-like
Leaves
Leaves floating, shortly petioled, circular to ovate in outline, base with a narrow to wide sinus, margin entire, crenate or dentate
Flowers
Flowers bisexual (in East Africa), solitary or fascicled at the nodes, subtended by a small bract, 5(-8)-merous
Corolla
Corolla white or yellow; lobes variously fimbriate; tube with short tufts of hairs ± halfway up

Native to:

Alabama, Albania, Algeria, Altay, Amur, Angola, Argentina Northeast, Argentina Northwest, Assam, Austria, Bahamas, Baltic States, Bangladesh, Belarus, Belgium, Belize, Benin, Bolivia, Botswana, Brazil North, Brazil Northeast, Brazil South, Brazil Southeast, Brazil West-Central, Bulgaria, Burkina, Burundi, Buryatiya, Cambodia, Cameroon, Cape Provinces, Caprivi Strip, Cayman Is., Central African Repu, Central European Rus, Chad, China North-Central, China South-Central, China Southeast, Chita, Colombia, Congo, Costa Rica, Cuba, Czechoslovakia, Delaware, Dominican Republic, East Himalaya, Ecuador, El Salvador, Ethiopia, Fiji, Florida, France, French Guiana, Gabon, Gambia, Georgia, Germany, Ghana, Great Britain, Greece, Guatemala, Guinea, Guinea-Bissau, Guyana, Hainan, Haiti, Honduras, Hungary, India, Inner Mongolia, Iran, Iraq, Irkutsk, Italy, Ivory Coast, Jamaica, Japan, Kazakhstan, Kenya, Khabarovsk, Korea, Krasnoyarsk, KwaZulu-Natal, Laos, Leeward Is., Lesser Sunda Is., Louisiana, Madagascar, Malawi, Malaya, Mali, Manchuria, Maryland, Mauritius, Mexico Central, Mexico Gulf, Mexico Northeast, Mexico Southeast, Mexico Southwest, Mississippi, Mongolia, Mozambique, Myanmar, Namibia, Nepal, Netherlands, New Caledonia, New South Wales, New York, Nicaragua, Niger, Nigeria, North Carolina, North European Russi, Northern Provinces, Northern Territory, Pakistan, Panamá, Paraguay, Peru, Poland, Portugal, Primorye, Puerto Rico, Queensland, Romania, Réunion, Sardegna, Senegal, Sierra Leone, Somalia, South Carolina, South European Russi, Spain, Sri Lanka, Sudan, Suriname, Swaziland, Taiwan, Tanzania, Texas, Thailand, Tibet, Trinidad-Tobago, Turkey-in-Europe, Tuva, Uganda, Ukraine, Uruguay, Uzbekistan, Vanuatu, Venezuela, Vermont, Victoria, Vietnam, Virginia, West Himalaya, West Siberia, Western Australia, Xinjiang, Yakutskiya, Yugoslavia, Zambia, Zaïre, Zimbabwe

Introduced into:

Denmark, Illinois, Kentucky, Sweden, Switzerland, Venezuelan Antilles

Nymphoides Ség. appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Brenan, J.P.M. [8595], Nigeria 1094.000
Wild, H. [4119], Zimbabwe 11167.000
Bullock, A.A. [2162], Zambia 11168.000
Harley, R.M. [16105], Brazil K001138294
Harley, R.M. [17438], Brazil K001138293
Harley, R.M. [18004], Brazil K001138292
Harley, R. [3480], Brazil K001138297
Lewis, G.P. [804], Brazil K001138296
Polhill, R.M.&D [5246], Botswana 52388.000
Santos, T.S. [2251], Brazil K001138291
Hind, D.J.N. [38], Brazil K001138298
Hind, D.J.N. [38], Brazil K001138289
Conceição, A.A. [2309], Brazil K001138295
Mattos, L.A. [304], Brazil K001138290

First published in Pl. Veron. 3: 121 (1754)

Literature

Flora of West Tropical Africa

  • Brit. Herb. 77 (1756).

Flora Zambesiaca

  • in Fl. Afr. Centr., Menyanthaceae: 1–16 (1975).
  • in Adansonia, Sér. 2, 14: 227–270, 405–458 (1974)
  • A. Raynal in Mitt. Bot. Staatss. München 10: 122–134 (1971)
  • Pl. Veron. 3: 121 (1754).

Flora of Somalia

  • Flora Somalia, (2000) Author: by M. Thulin [updated by M. Thulin 2008]
  • Raynal in Adansonia, sér. 2, 14: 227–270 (1974).

Flora of Tropical East Africa

  • Mackinder in F.Z. 7(4): 51 (1990)
  • in F.A.C., Menyanthaceae (1975)
  • in Adansonia, sér. 2, 14: 227-270 (1974)
  • in Adansonia, sér. 2, 14: 405-458  (1974)
  • A. Raynal in Mitt. Bot. Staats., München, 10: 122-134 (1971)
  • Pl. Veron. 3: 121 (1754)

Flora Zambesiaca
Flora Zambesiaca
http://creativecommons.org/licenses/by-nc-sa/3.0

Flora of Somalia
Flora of Somalia
http://creativecommons.org/licenses/by-nc-sa/3.0

Flora of Tropical East Africa
Flora of Tropical East Africa
http://creativecommons.org/licenses/by-nc-sa/3.0

Herbarium Catalogue Specimens
'The Herbarium Catalogue, Royal Botanic Gardens, Kew. Published on the Internet http://www.kew.org/herbcat [accessed on Day Month Year]'. Please enter the date on which you consulted the system.
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Kew Backbone Distributions
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

Kew Names and Taxonomic Backbone
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0