1. Family: Alismataceae Vent.
    1. Alisma L.

      1. This genus is accepted, and its native range is Temp. Northern Hemisphere to E. Tropical Africa.

    [FTEA]

    Alismataceae, Susan Carter. Flora of Tropical East Africa. 1960

    Habit
    Perennial aquatic or marsh herbs
    Leaves
    Leaves erect; leaf-blade linear-lanceolate to ovate; apex acute; base decurrent to cordate
    Inflorescences
    Inflorescence compound, pyramidal; flowers and branches in whorls of 4 or more, each whorl subtended by 3 bracts and several smaller bracteoles
    Flowers
    Flowers bisexual
    Calyx
    Sepals 3, appressed in the fruiting state
    Corolla
    Petals 3, larger than the sepals
    Stamens
    Stamens 6; filaments filiform
    Carpels
    Carpels many, free; style ventral, erect or curved; stigma papillose; ovules solitary, basal
    Fruits
    Achenes many, in a whorl on the flat receptacle, compressed laterally, ridged dorsally.

    Images

    Distribution

    Native to:

    Afghanistan, Alabama, Alaska, Albania, Alberta, Algeria, Altay, Amur, Arizona, Arkansas, Assam, Austria, Azores, Baleares, Baltic States, Bangladesh, Belarus, Belgium, British Columbia, Bulgaria, Burundi, Buryatiya, California, Canary Is., Central European Rus, China North-Central, China South-Central, China Southeast, Chita, Colorado, Connecticut, Corse, Cyprus, Czechoslovakia, Delaware, Denmark, District of Columbia, East Aegean Is., East European Russia, East Himalaya, Egypt, Eritrea, Ethiopia, Finland, France, Georgia, Germany, Great Britain, Greece, Hungary, Idaho, Illinois, Indiana, Inner Mongolia, Iowa, Iran, Iraq, Ireland, Irkutsk, Italy, Japan, Kamchatka, Kansas, Kazakhstan, Kentucky, Kenya, Khabarovsk, Kirgizstan, Korea, Krasnoyarsk, Kriti, Krym, Kuril Is., Labrador, Lebanon-Syria, Libya, Louisiana, Madeira, Maine, Manchuria, Manitoba, Maryland, Masachusettes, Michigan, Minnesota, Mississippi, Missouri, Mongolia, Montana, Morocco, Myanmar, Nansei-shoto, Nebraska, Nepal, Netherlands, Nevada, New Brunswick, New Hampshire, New Jersey, New Mexico, New York, Newfoundland, North Carolina, North Caucasus, North Dakota, North European Russi, Northwest European R, Northwest Territorie, Norway, Nova Scotia, Ohio, Oklahoma, Ontario, Oregon, Pakistan, Palestine, Pennsylvania, Poland, Portugal, Primorye, Prince Edward I., Qinghai, Québec, Rhode I., Romania, Rwanda, Sakhalin, Sardegna, Saskatchewan, Sicilia, South Carolina, South Dakota, South European Russi, Spain, Sudan, Sweden, Switzerland, Tadzhikistan, Taiwan, Tanzania, Tennessee, Texas, Thailand, Transcaucasus, Tunisia, Turkey, Turkey-in-Europe, Tuva, Uganda, Ukraine, Utah, Uzbekistan, Vermont, Vietnam, Virginia, Washington, West Himalaya, West Siberia, West Virginia, Wisconsin, Wyoming, Xinjiang, Yakutskiya, Yugoslavia, Zaïre

    Introduced into:

    Angola, Argentina South, Cape Provinces, Chile Central, Free State, KwaZulu-Natal, New South Wales, New Zealand North, New Zealand South, Northern Provinces, Queensland, South Australia, Tasmania, Victoria, Western Australia, Zimbabwe

    Alisma L. appears in other Kew resources:

    First published in Sp. Pl.: 342 (1753)

    Accepted by

    • Roskov Y. & al. (eds.) (2018). Species 2000 & ITIS Catalogue of Life Naturalis, Leiden, the Netherlands.
    • Govaerts, R. (1995). World Checklist of Seed Plants 1(1, 2): 1-483, 1-529. MIM, Deurne.

    Literature

    Flora of Tropical East Africa
    • L., Gen. Pl., ed. 5: 160 (1754)
    • Sp. Pl.: 342 (1753)

    Sources

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