Cosmos Cav.

This genus is accepted, and its native range is W. Central & Central U.S.A. to Trinidad and NW. Argentina.


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

Morphology General Habit
Annual or perennial herbs, sometimes shrubs
Morphology Leaves
Leaves opposite, pinnatisect or simple
Morphology Reproductive morphology Inflorescences Capitulum
Capitula terminal and solitary or in few-headed terminal or axillary cymes, radiate; involucre often fleshy at base, the phyllaries connate at base, 2-seriate with the outer leafy and the inner scarious; paleae present
Morphology Reproductive morphology Flowers Florets
Ray florets neuter; disc florets many, anthers with ovate or cordate apical appendage; style branches truncate, with caudate appendage
Morphology Reproductive morphology Fruits
Achenes fusiform, and typically attenuate into a beak; pappus absent or of retrorsely barbed aristae
About 30 species from the Americas; some species cultivated.

Native to:

Argentina Northwest, Arizona, Belize, Bolivia, Brazil Northeast, Brazil Southeast, Brazil West-Central, Colombia, Colorado, Costa Rica, El Salvador, Guatemala, Honduras, Mexico Central, Mexico Gulf, Mexico Northeast, Mexico Northwest, Mexico Southeast, Mexico Southwest, Missouri, New Mexico, Nicaragua, Panamá, Peru, Texas, Trinidad-Tobago, Venezuela

Introduced into:

Afghanistan, Alabama, Andaman Is., Angola, Arkansas, Assam, Austria, Baltic States, Bangladesh, Belarus, Belgium, Benin, Brazil North, Brazil South, Bulgaria, California, Cameroon, Canary Is., Cape Provinces, Caroline Is., Cayman Is., Central African Repu, Connecticut, Cuba, Czechoslovakia, Delaware, Dominican Republic, East European Russia, East Himalaya, Ecuador, Eritrea, Ethiopia, Fiji, Florida, France, Free State, French Guiana, Georgia, Germany, Great Britain, Guyana, Haiti, Hungary, Illinois, India, Iraq, Ireland, Italy, Jawa, Kansas, Kazakhstan, Kentucky, Korea, Krym, KwaZulu-Natal, Leeward Is., Lesotho, Louisiana, Madagascar, Madeira, Maine, Marianas, Maryland, Massachusetts, Mauritius, Michigan, Minnesota, Mozambique, Myanmar, Nepal, New Caledonia, New Hampshire, New Jersey, New South Wales, New York, Nicobar Is., Niue, North Carolina, North Caucasus, Northern Provinces, Northern Territory, Norway, Ohio, Oklahoma, Ontario, Pakistan, Paraguay, Pennsylvania, Philippines, Poland, Primorye, Puerto Rico, Queensland, Québec, Rhode I., Rodrigues, Romania, Réunion, Samoa, Society Is., South Australia, South Carolina, South European Russi, Spain, Sri Lanka, Suriname, Tadzhikistan, Taiwan, Tennessee, Thailand, Tubuai Is., Turkmenistan, Ukraine, Utah, Uzbekistan, Vietnam, Virginia, West Virginia, Western Australia, Windward Is., Wisconsin, Wyoming, Yugoslavia, Zambia, Zaïre, Zimbabwe

Cosmos Cav. appears in other Kew resources:

First published in Icon. 1: 9 (1791)

Accepted by

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


Flora of Tropical East Africa

  • D.J.N. Hind in Fl. Masc. 109: 198 (1993)
  • Ic. 1: 9 (1791)
  • Sherff in Field Mus. Nat. Hist., Bot. Ser. 8(6): 401–447 (1932)

  • Flora of Tropical East Africa

    Flora of Tropical East Africa

  • Kew Backbone Distributions

    The International Plant Names Index and World Checklist of Selected Plant Families 2022. 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 2022. Published on the Internet at and
    © Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families.