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  1. Family: Potamogetonaceae Bercht. & J.Presl
    1. Potamogeton L.

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


    Potamogetonaceae, J.J. Symoens. Flora of Tropical East Africa. 2006

    Rhizome present or absent, if present well differentiated from the stem, filiform, slender or robust, terete or ± compressed; stems terete or compressed, ± densely branched; turions present or absent
    Leaves alternate, but mostly subopposite toward the inflorescence apex (involucral leaves), sessile or petiolate, 1- to many-nerved, all submerged and with filiform, grass-like or ± expanded blade, or dimorphic, the submerged ones thin and ± translucent, sometimes reduced to phyllodes, the floating ones ± coriaceous, opaque, petiolate,and usually broader; stipulesalways present,although sometimes fugacious, forming a sheath, connate or convolute around the stem; blade or petiole sometimes attached near the top of the sheath which projects beyond the joint as a ventralligule, sometimes attached farther down the sheath or arising from the node
    Spikes cylindrical or subglobose, 3- to many-flowered, dense or lax, sometimes interrupted, mostly borne above the water and wind-pollinated, but sometimes submerged and water-pollinated
    Tepals rounded at the apex
    Fruitlets with soft mesocarp and multi-layered sclerified endocarp, with or without a distinct beak
    Embryo unciform or spiral; cotyledon curved in the seed.



    Doubtfully present in:

    Bismarck Archipelago

    Native to:

    Afghanistan, Alabama, Alaska, Albania, Alberta, Aleutian Is., Algeria, Altay, Amur, Andaman Is., Angola, Antipodean Is., Argentina Northeast, Argentina Northwest, Argentina South, Arizona, Arkansas, Assam, Austria, Azores, Bahamas, Baleares, Baltic States, Bangladesh, Belarus, Belgium, Belize, Bolivia, Borneo, Botswana, Brazil North, Brazil Northeast, Brazil South, Brazil Southeast, Brazil West-Central, British Columbia, Bulgaria, Burkina, Burundi, Buryatiya, California, Cameroon, Canary Is., Cape Provinces, Cape Verde, Caprivi Strip, Central African Repu, Central European Rus, Chad, Chatham Is., Chile Central, Chile North, Chile South, China North-Central, China South-Central, Chita, Colombia, Colorado, Comoros, Congo, Connecticut, Corse, Costa Rica, Cuba, Cyprus, Czechoslovakia, Delaware, Denmark, District of Columbia, Dominican Republic, East Aegean Is., East European Russia, East Himalaya, Ecuador, Egypt, El Salvador, Equatorial Guinea, Eritrea, Ethiopia, Falkland Is., Finland, Florida, France, Free State, Føroyar, Gabon, Georgia, Germany, Ghana, Great Britain, Greece, Greenland, Guatemala, Guinea, Gulf of Guinea Is., Gulf States, Haiti, Hawaii, Honduras, Hungary, Iceland, Idaho, Illinois, India, Indiana, Iowa, Iran, Iraq, Ireland, Irkutsk, Italy, Ivory Coast, Jamaica, Japan, Jawa, Kamchatka, Kansas, Kazakhstan, Kentucky, Kenya, Khabarovsk, Kirgizstan, Korea, Krasnoyarsk, Kriti, Krym, Kuril Is., KwaZulu-Natal, Labrador, Laos, Lebanon-Syria, Leeward Is., Lesotho, Lesser Sunda Is., Liberia, Libya, Louisiana, Madagascar, Madeira, Magadan, Maine, Malawi, Malaya, Mali, Maluku, Manchuria, Manitoba, Marianas, Marion-Prince Edward, Maryland, Massachusetts, Mauritania, Mauritius, Mexican Pacific Is., Mexico Central, Mexico Gulf, Mexico Northeast, Mexico Northwest, Mexico Southeast, Mexico Southwest, Michigan, Minnesota, Mississippi, Missouri, Mongolia, Montana, Morocco, Mozambique, Myanmar, Namibia, Nansei-shoto, Nebraska, Nepal, Netherlands, Nevada, New Brunswick, New Caledonia, New Guinea, New Hampshire, New Jersey, New Mexico, New South Wales, New York, New Zealand North, New Zealand South, Newfoundland, Nicaragua, Niger, Nigeria, North Carolina, North Caucasus, North Dakota, North European Russi, Northern Provinces, Northern Territory, Northwest European R, Northwest Territorie, Norway, Nova Scotia, Nunavut, Ohio, Oklahoma, Oman, Ontario, Oregon, Pakistan, Palestine, Panamá, Paraguay, Pennsylvania, Peru, Philippines, Poland, Portugal, Primorye, Prince Edward I., Puerto Rico, Queensland, Québec, Rhode I., Romania, Rwanda, Réunion, Sakhalin, Sardegna, Saskatchewan, Saudi Arabia, Senegal, Seychelles, Sicilia, Sierra Leone, Sinai, Socotra, Solomon Is., Somalia, South Australia, South Carolina, South Dakota, South European Russi, Spain, Sri Lanka, Sudan, Sulawesi, Sumatera, Swaziland, Sweden, Switzerland, Tadzhikistan, Taiwan, Tanzania, Tasmania, Tennessee, Texas, Thailand, Tibet, Transcaucasus, Trinidad-Tobago, Tunisia, Turkey, Turkey-in-Europe, Turkmenistan, Tuva, Uganda, Ukraine, Uruguay, Utah, Uzbekistan, Vanuatu, Venezuela, Vermont, Victoria, Vietnam, Virginia, Washington, West Himalaya, West Siberia, West Virginia, Western Australia, Windward Is., Wisconsin, Wyoming, Xinjiang, Yakutskiya, Yemen, Yugoslavia, Yukon, Zambia, Zaïre, Zimbabwe

    Introduced into:


    Accepted Species


    Other Data

    Potamogeton L. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Dec 1, 2000 Cheek, M. [9884], Cameroon K000678180
    May 1, 1997 Cheek, M. [8597], Cameroon K000678178


    First published in Sp. Pl.: 126 (1753)

    Accepted by

    • Govaerts, R.H.A. (2011). World checklist of selected plant families published update Facilitated by the Trustees of the Royal Botanic Gardens, Kew.
    • Kharkevich, S.S. (ed.) (1987). Plantae Vasculares Orientalis Extremi Sovietici 2: 1-448. Nauka, Leningrad.


    Flora of West Tropical Africa

    • Dandy in J. Linn. Soc. 50: 507-540 (1937).
    • F.T.A. 8: 219
    • Sp. Pl. 126 (1753)

    Flora of Tropical East Africa

    • Cook, Aquat. Wetl. Pl. S. Afr.: 234– 239 (2004)
    • Wiegleb & Kaplan in Folia Geobot. 33: 241– 316 (1998)
    • Dandy in J.L.S. 50: 507– 540 (1937)
    • A. Bennett in F.T.A. 8: 219 (1901)
    • Sp. Pl.: 126 (1753)


    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.

    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.

    Milliken, W., Klitgard, B. and Baracat, A. (2009 onwards), Neotropikey - Interactive key and information resources for flowering plants of the Neotropics.

    Plants and People Africa
    Common Names from Plants and People Africa
    © Plants and People Africa