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  1. Family: Menyanthaceae Dumort.
    1. Nymphoides Ség.

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


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

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

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

    Stamens 5(-8), inserted at or below the corolla-throat
    Ovary with 5 basal glands
    Capsule indehiscent or irregularly rupturing
    Seeds round to oval, flattened or convex, smooth to tuberculate.
    Aquatic herbs
    Stems long, petiole-like
    Leaves floating, shortly petioled, circular to ovate in outline, base with a narrow to wide sinus, margin entire, crenate or dentate
    Flowers bisexual (in East Africa), solitary or fascicled at the nodes, subtended by a small bract, 5(-8)-merous
    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

    Accepted Species


    Other Data

    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)


    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 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

    Flora of Tropical East Africa
    Flora of Tropical East Africa

    Herbarium Catalogue Specimens
    'The Herbarium Catalogue, Royal Botanic Gardens, Kew. Published on the Internet [accessed on Day Month Year]'. Please enter the date on which you consulted the system.
    Digital Image © Board of Trustees, RBG Kew

    Kew Backbone Distributions
    The International Plant Names Index and World Checklist of Selected Plant Families 2020. Published on the Internet at and
    © Copyright 2017 World Checklist of Selected Plant Families.

    Kew Names and Taxonomic Backbone
    The International Plant Names Index and World Checklist of Selected Plant Families 2020. Published on the Internet at and
    © Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families.