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

      1. This genus is accepted, and is native to Yugoslavia, Southern America and Northern America..

    [FTEA]

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

    Habit
    Annual or perennial herbs, less often shrubs, aromatic
    Leaves
    Leaves alternate or sometimes opposite
    Capitulum
    Capitula unisexual, monoecious Female capitula solitary, axillary to upper leaves but below male heads, sessile, 1-flowered; involucre enveloping the achene, becoming hardened, with 4–6 small spines; corolla absent; style branches long and linear, exserted from involucre Male capitula small, in racemes or spikes; involucre cupuliform, of connate phyllaries; corolla tubular; anthers ± free, with linear apical appendage; ovary abortive
    Male
    Male capitula small, in racemes or spikes; involucre cupuliform, of connate phyllaries; corolla tubular; anthers ± free, with linear apical appendage; ovary abortive
    Female
    Female capitula solitary, axillary to upper leaves but below male heads, sessile, 1-flowered; involucre enveloping the achene, becoming hardened, with 4–6 small spines; corolla absent; style branches long and linear, exserted from involucre
    Fruits
    Achenes ovoid, smooth, enveloped in hardened involucre; pappus absent.

    Images

    Distribution

    Native to:

    Alabama, Alaska, Alberta, Argentina Northeast, Argentina Northwest, Argentina South, Arizona, Arkansas, Bahamas, Belize, Bolivia, Brazil North, Brazil Northeast, Brazil South, Brazil Southeast, British Columbia, California, Cayman Is., Chile Central, Chile North, Chile South, Colombia, Colorado, Connecticut, Costa Rica, Cuba, Delaware, District of Columbia, Dominican Republic, Ecuador, El Salvador, Florida, French Guiana, Georgia, Guatemala, Guyana, Haiti, Honduras, Idaho, Illinois, Indiana, Iowa, Jamaica, Kansas, Kentucky, Labrador, Leeward Is., Louisiana, Maine, Manitoba, Maryland, Masachusettes, Mexico Central, Mexico Gulf, Mexico Northeast, Mexico Northwest, Mexico Southeast, Mexico Southwest, Michigan, Minnesota, Mississippi, Missouri, Montana, Nebraska, Nevada, New Brunswick, New Hampshire, New Jersey, New Mexico, New York, Newfoundland, Nicaragua, North Carolina, North Dakota, Northwest Territorie, Nova Scotia, Ohio, Oklahoma, Ontario, Oregon, Panamá, Paraguay, Pennsylvania, Peru, Prince Edward I., Puerto Rico, Québec, Rhode I., Saskatchewan, South Carolina, South Dakota, Suriname, Tennessee, Texas, Trinidad-Tobago, Uruguay, Utah, Venezuela, Venezuelan Antilles, Vermont, Virginia, Washington, West Virginia, Windward Is., Wisconsin, Wyoming, Yugoslavia

    Introduced into:

    Afghanistan, Albania, Algeria, Austria, Baleares, Baltic States, Belarus, Belgium, Botswana, Bulgaria, Cape Provinces, China North-Central, China South-Central, China Southeast, Corse, Czechoslovakia, Denmark, Egypt, France, Free State, Germany, Great Britain, Greece, Hawaii, Hungary, India, Iran, Ireland, Irkutsk, Italy, Japan, Jawa, Kazakhstan, Khabarovsk, Kirgizstan, Korea, Krym, KwaZulu-Natal, Lesotho, Madeira, Manchuria, Mauritius, Mexican Pacific Is., Netherlands, New South Wales, North Caucasus, Northern Provinces, Northwest European R, Norway, Palestine, Poland, Portugal, Primorye, Queensland, Romania, Réunion, Sakhalin, South Australia, Spain, Sweden, Switzerland, Taiwan, Transcaucasus, Turkey, Ukraine, Uzbekistan, Victoria, West Siberia, Western Australia, Zambia

    Ambrosia L. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Eiten, G. [6121], Brazil K001031218
    Prance, G.T. [8306], Brazil K001031217

    First published in Sp. Pl.: 987 (1753)

    Accepted by

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

    Literature

    Flora of West Tropical Africa
    • —F.T.A. 3: 370.
    Flora of Tropical East Africa
    • Sp. Pl.: 987 (1753)

    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