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

      1. This genus is accepted, and is native to Asia-Tropical, Gulf of Guinea Island, Southern America, Northern America and Asia-Temperate..

    [FTEA]

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

    Habit
    Annual or perennial herbs
    Leaves
    Leaves opposite (or alternate in non-weedy species)
    Capitulum
    Capitula terminal, solitary on long stalks (or paniculate in non-weedy species), radiate or discoid; involucre 1–5-seriate; paleae linear and keeled
    Florets
    Ray florets female; disc florets hermaphrodite, cylindric; anthers with sagittate base and terminal appendage; style arms linear, pubescent, style-base with globose swelling
    Fruits
    Achenes with pappus of many plumose bristles.

    Images

    Distribution

    Native to:

    Argentina Northeast, Argentina Northwest, Aruba, Bahamas, Belize, Bolivia, Brazil South, Cayman Is., Christmas I., Colombia, Costa Rica, Cuba, Ecuador, French Guiana, Guatemala, Gulf of Guinea Is., Guyana, Jamaica, Kazan-retto, Laccadive Is., Leeward Is., Mexico Central, Mexico Gulf, Mexico Northeast, Mexico Northwest, Mexico Southeast, Mexico Southwest, Netherlands Antilles, Nicaragua, Panamá, Peru, Puerto Rico, Trinidad-Tobago, Venezuela, Windward Is., Yemen

    Introduced into:

    Andaman Is., Bangladesh, Benin, Botswana, Burkina, Cambodia, Cameroon, Cape Verde, Caroline Is., Chad, Chagos Archipelago, China Southeast, Cocos (Keeling) Is., Congo, East Himalaya, Eritrea, Ethiopia, Fiji, Florida, Gabon, Gilbert Is., Hainan, Hawaii, India, Ivory Coast, Japan, KwaZulu-Natal, Laos, Line Is., Madagascar, Malaya, Maldives, Mali, Marianas, Marshall Is., Mauritius, Mozambique, Myanmar, Nauru, Nepal, New Caledonia, New Guinea, New South Wales, Nicobar Is., Northern Provinces, Northern Territory, Ogasawara-shoto, Pakistan, Philippines, Phoenix Is., Queensland, Rodrigues, Réunion, Seychelles, Society Is., Sri Lanka, Sudan, Swaziland, Taiwan, Texas, Togo, Vietnam, Western Australia, Zambia, Zimbabwe

    Tridax L. appears in other Kew resources:

    First published in Sp. Pl. 2: 900 (1753)

    Accepted by

    • Roskov Y. & al. (eds.) (2018). Species 2000 & ITIS Catalogue of Life Naturalis, Leiden, the Netherlands.

    Literature

    Flora of West Tropical Africa
    • —Benth. & Hook. f. Gen. Pl. 2: 392.
    Flora of Tropical East Africa
    • Gen. Pl. ed. 5: 382 (1754)
    • Sp. Pl.: 900 (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 2018. 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 2018. 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