1. Family: Cyperaceae Juss.
    1. Eleocharis R.Br.

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

    [FTEA]

    Cyperaceae, K Hoenselaar, B. Verdcourt & H. Beentje. Hypolytrum, D Simpson. Fuirena, M Muasya. Flora of Tropical East Africa. 2010

    Note
    Sometimes spelled Heleocharis, but this is not correct
    Habit
    Annual or perennial herbs, glabrous.
    Rhizomes
    Rhizome often strong, horizontal, and often producing stolons
    Culms
    Culms green and photosynthesizing, hollow or filled with pith, rarely with transverse septa
    Leaves
    Leaves reduced to scarious scales on stem base and to tubular sheaths, truncate or ending in a short lobe
    Inflorescences
    Inflorescence a single terminal spikelet 0.1–50 mm long, or sometimes the spikelet aborted and only a scar present; lowest 1–2 glumes equal to or different from the upper.
    Glume
    Glumes spirally arranged, imbricate, florets bisexual but the lowermost 1–2 glumes usually sterile, glabrous, often with pale border and midrib
    Perianth
    Perianth of 3–9 bristles, or reduced to a minute basal rim to the ovary/nutlet
    Stamens
    Stamens 1–3
    Style
    Style with swollen base, persistent in fruit, and with 2–3 branches, sometimes varying even within a single plant, the branches with beaded hairs (unicellular with annular constrictions)
    Fruits
    Nutlet obovoid or urn-shaped, with base of style persistent and often separated from main fruit body by a constriction, pitted or grooved longitudinally with transversal ridges.
    Ecology
    Mostly in the Americas. Wet or seasonally inundated habitats.
    [FTEA]

    Cyperaceae, K Hoenselaar, B. Verdcourt & H. Beentje. Hypolytrum, D Simpson. Fuirena, M Muasya. Flora of Tropical East Africa. 2010

    Habit
    Submerged perennial aquatic plants rooting in mud.
    Culms
    Culms much-branched, many-noded with many sterile stems in successive whorls and only occasional fertile culms
    Leaves
    Leaves a tubular sheath
    Inflorescences
    Inflorescence a single spikelet
    Spikelets
    Spikelets of 2 glumes and a single bisexual flower.
    Perianth
    Perianth-segments 6–11, filiform with many recurved spines.
    Stamens
    Stamens 3 with large anthers
    Style
    Style 2-branched
    Fruits
    Nutlets broadly ovoid or round, flattened, with small persistent style-base

    Images

    Distribution

    Native to:

    Afghanistan, Alabama, Alaska, Albania, Alberta, Aleutian Is., Algeria, Altay, Amur, Andaman Is., Angola, Argentina Northeast, Argentina Northwest, Argentina South, Arizona, Arkansas, Aruba, Assam, Austria, Azores, Bahamas, Baleares, Baltic States, Bangladesh, Belarus, Belgium, Belize, Benin, Bermuda, Bismarck Archipelago, Bolivia, Borneo, Botswana, Brazil North, Brazil Northeast, Brazil South, Brazil Southeast, Brazil West-Central, British Columbia, Bulgaria, Burkina, Burundi, Buryatiya, California, Cambodia, Cameroon, Canary Is., Cape Provinces, Caroline Is., Cayman Is., Central African Repu, Central American Pac, Central European Rus, Chad, Chagos Archipelago, Chatham Is., Chile Central, Chile North, Chile South, China North-Central, China South-Central, China Southeast, Chita, Christmas I., Cocos (Keeling) Is., Colombia, Colorado, Congo, Connecticut, Cook Is., Corse, Costa Rica, Cuba, Cyprus, Czechoslovakia, Delaware, Denmark, District of Columbia, Djibouti, Dominican Republic, Dominican Republic, East Aegean Is., East European Russia, East Himalaya, Ecuador, Egypt, El Salvador, Equatorial Guinea, Eritrea, Ethiopia, Falkland Is., Fiji, Finland, Florida, France, Free State, French Guiana, Føroyar, Gabon, Galápagos, Gambia, Georgia, Germany, Ghana, Gilbert Is., Great Britain, Greece, Greenland, Guatemala, Guinea, Guinea-Bissau, Gulf of Guinea Is., Gulf States, Guyana, Hainan, Haiti, Hawaii, Honduras, Hungary, Iceland, Idaho, Illinois, India, Indiana, Inner Mongolia, Iowa, Iran, Iraq, Ireland, Irkutsk, Italy, Ivory Coast, Jamaica, Japan, Jawa, Juan Fernández Is., Kamchatka, Kansas, Kazakhstan, Kentucky, Kenya, Kermadec Is., 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, Maryland, Masachusettes, 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, Netherlands Antilles, 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, Nicobar Is., Niger, Nigeria, Norfolk Is., North Carolina, North Caucasus, 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, Qinghai, Queensland, Québec, Rhode I., Romania, Rwanda, Réunion, Sakhalin, Samoa, Sardegna, Saskatchewan, Saudi Arabia, Senegal, Seychelles, Sicilia, Sierra Leone, Sinai, Society Is., Socotra, Solomon Is., Somalia, South Australia, South Carolina, South Dakota, South European Russi, Spain, Sri Lanka, Sudan, Sulawesi, Sumatera, Suriname, Swaziland, Sweden, Switzerland, Tadzhikistan, Taiwan, Tanzania, Tasmania, Tennessee, Texas, Thailand, Tibet, Togo, Tokelau-Manihiki, Tonga, Transcaucasus, Trinidad-Tobago, Tunisia, Turkey, Turkey-in-Europe, Turkmenistan, Turks-Caicos Is., Tuva, Uganda, Ukraine, Uruguay, Utah, Uzbekistan, Venezuela, Venezuelan Antilles, Vermont, Victoria, Vietnam, Virginia, Wallis-Futuna Is., Washington, West Himalaya, West Siberia, West Virginia, Western Australia, Windward Is., Wisconsin, Wyoming, Xinjiang, Yakutskiya, Yemen, Yugoslavia, Yukon, Zambia, Zaïre, Zimbabwe

    Introduced into:

    Nauru

    Eleocharis R.Br. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Rico, L. [1632], Bolivia K000295247
    Wallich, N. [Cat. no. 3452], Nepal Elaeocharis K001119434
    Wallich, N. [Cat. no. 3454], India Elaeocharis K001119441
    Wallich, N. [Cat. no. 3455], India Elaeocharis K001119442
    Wallich, N. [Cat. no. 3455], India Elaeocharis K001119443
    Blinkworth, R. [Cat. no. 3449], India Elaeocharis K001119431
    Bruce, H. [Cat. no. 3451], India Elaeocharis K001119433
    s.coll. [Cat. no. 3450], India Elaeocharis K001119432
    s.coll. [Cat. no. 3454] Elaeocharis K001119435
    s.coll. [Cat. no. 3454] Elaeocharis K001119436
    s.coll. [Cat. no. 3454] Elaeocharis K001119437
    s.coll. [Cat. no. 3454] Elaeocharis K001119438
    s.coll. [Cat. no. 3454], India Elaeocharis K001119439
    s.coll. [Cat. no. 3454], India Elaeocharis K001119440

    First published in Prodr. Fl. Nov. Holland.: 224 (1810)

    Accepted by

    • Wu, Z. & Raven, P.H. (eds.) (2010). Flora of China 23: 1-515. Missouri Botanical Garden Press, St. Louis.
    • Govaerts, R. & Simpson, D.A. (2007). World Checklist of Cyperaceae. Sedges: 1-765. The Board of Trustees of the Royal Botanic Gardens, Kew.
    • Govaerts, R. (2004). World Checklist of Monocotyledons Database in ACCESS: 1-54382. The Board of Trustees of the Royal Botanic Gardens, Kew.

    Literature

    Flora of West Tropical Africa
    • F.T.A. 8: 404 (1902).
    • Prod. Fl. Nov. Holl. 224 (1810)
    Flora of Tropical East Africa
    • Prodr.: 224 (1810)

    Sources

    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.
    Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/3.0/

    Kew Backbone Distributions
    The International Plant Names Index and World Checklist of Selected Plant Families 2019. 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 2019. 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

    Plants and People Africa
    Common Names from Plants and People Africa http://www.plantsandpeopleafrica.com/
    © Plants and People Africa http://www.plantsandpeopleafrica.com http://creativecommons.org/licenses/by/3.0/