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  1. Family: Asteraceae Bercht. & J.Presl
    1. Bidens L.

      1. This genus is accepted, and is native to Europe, Asia-Tropical, Africa, Pacific, Southern America, Northern America, Australasia and Asia-Temperate..


    Compositae, H. Beentje, C. Jeffrey & D.J.N. Hind. Flora of Tropical East Africa. 2005

    Annual or perennial herbs or shrubs
    Leaves opposite, simple or variously compound with segments linear to broadly ovate
    Capitula radiate, terminal, solitary or arranged in cymes; involucre of usually green outer phyllaries and variously coloured inner phyllaries; paleae membranous, usually oblong-linear, 2–many-striate
    Ray florets neuter with aristate or exaristate ovary or pistillate and fertile with well developed achenes and aristae, rays yellow or orange, rarely white (B. pilosa L.) or lemon-yellow, striate; disc florets yellow to brownish, corolla 5-lobed
    Achenes compressed or angled, striate-sulcate, ribbed, unmargined or margins narrowly winged or callose-thickened; at apex with or without aristae, aristae with or without antrorse and or retrorse barbs.



    Native to:

    Afghanistan, Alabama, Alaska, Albania, Alberta, Algeria, Altay, Amur, Angola, Argentina Northeast, Argentina Northwest, Arizona, Arkansas, Aruba, Austria, Bahamas, Baltic States, Belarus, Belgium, Belize, Benin, Bolivia, Botswana, Brazil North, Brazil Northeast, Brazil South, Brazil Southeast, Brazil West-Central, British Columbia, Bulgaria, Burkina, Burundi, Buryatiya, California, Cameroon, Cape Provinces, Cayman Is., Central African Repu, Central European Rus, Chad, Chile Central, Chile North, China North-Central, China South-Central, China Southeast, Chita, Colombia, Colorado, Congo, Connecticut, Corse, Costa Rica, Cuba, Czechoslovakia, Delaware, Denmark, District of Columbia, Djibouti, Dominican Republic, East Aegean Is., East European Russia, East Himalaya, Ecuador, El Salvador, Eritrea, Ethiopia, Finland, Florida, France, Free State, French Guiana, Galápagos, Gambia, Georgia, Germany, Ghana, Great Britain, Greece, Guatemala, Guinea, Guinea-Bissau, Guyana, Hainan, Haiti, Hawaii, Honduras, Hungary, 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, Krym, Kuril Is., KwaZulu-Natal, Laccadive Is., Lebanon-Syria, Leeward Is., Lesotho, Louisiana, Maine, Malawi, Mali, Manchuria, Manitoba, Marquesas, Maryland, Massachusetts, Mexican Pacific Is., Mexico Central, Mexico Gulf, Mexico Northeast, Mexico Northwest, Mexico Southeast, Mexico Southwest, Michigan, Minnesota, Mississippi, Missouri, Mongolia, Montana, Mozambique, Myanmar, Namibia, Nansei-shoto, Nebraska, Nepal, Netherlands, Netherlands Antilles, Nevada, New Brunswick, New Guinea, New Hampshire, New Jersey, New Mexico, New York, New Zealand North, Newfoundland, Nicaragua, 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, Pitcairn Is., Poland, Portugal, Primorye, Prince Edward I., Puerto Rico, Qinghai, Québec, Rhode I., Romania, Rwanda, Sakhalin, Sardegna, Saskatchewan, Saudi Arabia, Senegal, Sicilia, Sierra Leone, Society Is., Socotra, Somalia, South Carolina, South Dakota, South European Russi, Spain, Sri Lanka, Sudan, Suriname, Sweden, Switzerland, Tadzhikistan, Taiwan, Tanzania, Tennessee, Texas, Thailand, Tibet, Togo, Tonga, Transcaucasus, Trinidad-Tobago, Tubuai Is., Turkey, Turkey-in-Europe, Turkmenistan, Tuva, Uganda, Ukraine, Uruguay, Utah, Uzbekistan, Venezuela, Venezuelan Antilles, Vermont, 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:

    Azores, Baleares, Canary Is., Cape Verde, Caroline Is., Chagos Archipelago, Cook Is., Cyprus, Egypt, Fiji, Gabon, Gilbert Is., Gulf of Guinea Is., Kazan-retto, Laos, Libya, Line Is., Madagascar, Madeira, Malaya, Maldives, Marianas, Marshall Is., Mauritania, Mauritius, Morocco, New Caledonia, New South Wales, Nicobar Is., Niue, Norfolk Is., Ogasawara-shoto, Queensland, Rodrigues, Réunion, Samoa, Selvagens, Seychelles, Sinai, South Australia, South China Sea, Swaziland, Tuamotu, Victoria

    Accepted Species

    Other Data

    Bidens L. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Ash [53], Ethiopia 40082.000
    Harley, R.M. [54427], Brazil K001133343
    França, F. [3835], Brazil K001031893
    Miranda, E.B. [169], Brazil K001031892


    First published in Sp. Pl.: 831 (1753)


    Flora of West Tropical Africa

    • Sherff in Publ. Field Mus. 16 (1937).
    • —F.T.A. 3: 392

    Flora of Tropical East Africa

    • Mesfin in K.B. 48: 437–516 (1993)
    • L., Gen. Pl.: 362 (1754)
    • Sp. Pl.: 831 (1753)


    Flora of Tropical East Africa
    Flora of Tropical East Africa

    Herbarium Catalogue Specimens
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    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.

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