Taxon: Ageratum conyzoides L.

Genus: Ageratum
Family: Asteraceae (alt.Compositae)
Nomen number: 103793
Place of publication: Sp. pl. 2:839. 1753, nom. cons. prop.
  • • [a pending conservation proposal, if adopted, will preserve its current usage]
  • • proposed for conservation (nom. cons. prop.) with a conserved type (Melbourne ICN Art. 14.9)
Name Verified on: 08-Jan-1987 by ARS Systematic Botanists. Last Changed: 19-Sep-2014
Species priority site is: Northeast Regional PI Station (NE9)
Accessions: 3 in National Plant Germplasm System

Common names:

Economic Importance:

  • Materials: potential as essential oils (fide Biol Util Comp)
  • Medicines: folklore (fide Pl Res SEAs 12(1):92. 1999; biodiv Conserv 13:460. 2004)
  • Vertebrate poisons: mammals (fide F Yemen)
  • Weed: potential seed contaminant (fide Atlas WWeed; Weeds SAfr 2001)

Distributional Range:


  • Southern America

    • Brazil: Brazil
    • Caribbean: Puerto Rico
    • Central America: El Salvador; Guatemala; Honduras; Nicaragua; Panama
    • Northern South America: Venezuela
    • Southern South America: Argentina; Chile; Paraguay; Uruguay
    • Western South America: Ecuador; Peru

  • Naturalized:

  • Africa

    • East Tropical Africa: Kenya; Tanzania; Uganda
    • Macaronesia: Portugal - Madeira Islands
    • Northeast Tropical Africa: Ethiopia
    • Northern Africa: Egypt
    • Southern Africa: Botswana; South Africa; Swaziland
    • West Tropical Africa: Cote D'Ivoire; Gambia; Ghana; Guinea; Guinea-Bissau; Liberia; Nigeria; Senegal; Sierra Leone
    • West-Central Tropical Africa: Cameroon; Congo; Gabon
    • Western Indian Ocean: Madagascar; Mauritius
  • Asia-Temperate

    • Arabian Peninsula: Yemen
    • China: China
    • Eastern Asia: Japan
  • Asia-Tropical

    • Indian Subcontinent: India
    • Indo-China: Indochina; Myanmar; Thailand; Vietnam
    • Malesia: Indonesia; Philippines
    • Papuasia: New Guinea
  • Australasia

    • Australia: Australia
  • Northern America

    • : Mexico
    • North-Central U.S.A.: United States - Missouri
    • Northeastern U.S.A.: United States - Connecticut
    • Southeastern U.S.A.: United States - Alabama, - Florida, - Georgia, - Kentucky, - Maryland, - Mississippi, - North Carolina
    • Southwestern U.S.A.: United States - California
  • Pacific

    • North-Central Pacific: United States - Hawaii
    • Northwestern Pacific: Guam; Micronesia; Northern Mariana Islands; Palau
    • South-Central Pacific: French Polynesia
    • Southwestern Pacific: Fiji; New Caledonia; Niue; Tonga
  • Southern America

    • Northern South America: French Guiana; Guyana; Suriname

  • Cultivated:

  • Asia-Temperate

    • China: China
  • Europe

    • : Europe
  • Pacific

    • Southwestern Pacific: Fiji


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