Ambrosia L.

This genus is accepted, and its native range is New World, Macaronesia, Africa, Madagascar, Medit to Arabian Peninsula.

[FTEA]

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

Morphology General Habit
Annual or perennial herbs, less often shrubs, aromatic
Morphology Leaves
Leaves alternate or sometimes opposite
Morphology Reproductive morphology Inflorescences 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
sex Male
Male capitula small, in racemes or spikes; involucre cupuliform, of connate phyllaries; corolla tubular; anthers ± free, with linear apical appendage; ovary abortive
sex 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
Morphology Reproductive morphology Fruits
Achenes ovoid, smooth, enveloped in hardened involucre; pappus absent.

Native to:

Alabama, Alaska, Albania, Alberta, Argentina Northeast, Argentina Northwest, Argentina South, Arizona, Arkansas, Bahamas, Baleares, Belize, Bolivia, Brazil North, Brazil Northeast, Brazil South, Brazil Southeast, British Columbia, Burkina, California, Cameroon, Cape Verde, Cayman Is., Chad, Chile Central, Chile North, Chile South, Colombia, Colorado, Connecticut, Corse, Costa Rica, Cuba, Cyprus, Delaware, District of Columbia, Dominican Republic, East Aegean Is., Ecuador, Egypt, El Salvador, Florida, France, French Guiana, Georgia, Greece, Guatemala, Gulf of Guinea Is., Guyana, Haiti, Honduras, Idaho, Illinois, Indiana, Iowa, Italy, Ivory Coast, Jamaica, Kansas, Kentucky, Lebanon-Syria, Leeward Is., Louisiana, Madagascar, Maine, Mali, Manitoba, Maryland, Massachusetts, Mauritania, 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, Nicaragua, North Carolina, North Dakota, Northwest Territorie, Nova Scotia, Ohio, Oklahoma, Ontario, Oregon, Palestine, Panamá, Paraguay, Pennsylvania, Peru, Prince Edward I., Puerto Rico, Québec, Rhode I., Sardegna, Saskatchewan, Saudi Arabia, Senegal, Sicilia, Sinai, South Carolina, South Dakota, Spain, Sudan, Suriname, Tennessee, Texas, Trinidad-Tobago, Turkey, Uruguay, Utah, Venezuela, Venezuelan Antilles, Vermont, Virginia, Washington, West Virginia, Windward Is., Wisconsin, Wyoming, Yemen, Yugoslavia

Introduced into:

Afghanistan, Algeria, Assam, Austria, Baltic States, Belarus, Belgium, Botswana, Bulgaria, Cape Provinces, Central European Rus, China North-Central, China South-Central, China Southeast, Czechoslovakia, Denmark, East European Russia, Ethiopia, Finland, Free State, Germany, Great Britain, Hawaii, Hungary, India, Inner Mongolia, Iran, Ireland, Irkutsk, Japan, Jawa, Kazakhstan, Khabarovsk, Kirgizstan, Korea, Krym, KwaZulu-Natal, Lesotho, Madeira, Manchuria, Mauritius, Mexican Pacific Is., Morocco, Mozambique, Netherlands, New South Wales, Newfoundland, North Caucasus, Northern Provinces, Northwest European R, Norway, Poland, Portugal, Primorye, Queensland, Romania, Réunion, Sakhalin, South Australia, South European Russi, Sweden, Switzerland, Tadzhikistan, Taiwan, Transcaucasus, Tunisia, Ukraine, Uzbekistan, Victoria, West Siberia, Western Australia, Zambia, Zaïre, Zimbabwe

Ambrosia L. appears in other Kew resources:

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

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)

  • Flora of Tropical East Africa

    Flora of Tropical East Africa
    http://creativecommons.org/licenses/by-nc-sa/3.0

  • Herbarium Catalogue Specimens

    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 2022. 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 2022. 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