Ageratum L.

Native to:

Arizona, Belize, Bolivia, Brazil North, Brazil Northeast, Brazil Southeast, Brazil West-Central, Cayman Is., Colombia, Costa Rica, Cuba, Dominican Republic, Ecuador, El Salvador, Florida, Guatemala, Honduras, Mexico Central, Mexico Gulf, Mexico Northeast, Mexico Northwest, Mexico Southeast, Mexico Southwest, New Mexico, Nicaragua, Panamá, Texas, Venezuela

Introduced into:

Alabama, Andaman Is., Angola, Argentina Northeast, Argentina Northwest, Assam, Azores, Bahamas, Bangladesh, Belarus, Belgium, Benin, Botswana, Brazil South, Bulgaria, Burkina, California, Cambodia, Cameroon, Canary Is., Cape Provinces, Cape Verde, Caroline Is., Central African Republic, Chad, Chagos Archipelago, China North-Central, China South-Central, China Southeast, Christmas I., Comoros, Congo, Connecticut, Cook Is., DR Congo, East Himalaya, Egypt, Eswatini, Ethiopia, Fiji, France, French Guiana, Gabon, Georgia, Germany, Great Britain, Guinea, Guinea-Bissau, Gulf of Guinea Is., Guyana, Hainan, Haiti, Hawaii, Hungary, India, Italy, Ivory Coast, Jamaica, Jawa, Kazakhstan, Kazan-retto, Kentucky, Kenya, Korea, Krym, KwaZulu-Natal, Laccadive Is., Laos, Leeward Is., Madagascar, Madeira, Malaya, Maldives, Mali, Marianas, Marquesas, Marshall Is., Maryland, Massachusetts, Mauritania, Mauritius, Mississippi, Missouri, Mozambique, Myanmar, Nansei-shoto, Nepal, New Caledonia, New South Wales, New York, Nicobar Is., Nigeria, Niue, Norfolk Is., North Carolina, North Caucasus, Northern Provinces, Northern Territory, NW. Balkan Pen., Ogasawara-shoto, Oman, Pakistan, Palestine, Paraguay, Peru, Philippines, Poland, Portugal, Primorye, Puerto Rico, Queensland, Rodrigues, Réunion, Samoa, Saudi Arabia, Senegal, Seychelles, Society Is., Socotra, South Carolina, South China Sea, South European Russia, Sri Lanka, Sudan-South Sudan, Sumatera, Suriname, Taiwan, Thailand, Togo, Tonga, Transcaucasus, Trinidad-Tobago, Tuamotu, Tubuai Is., Turkmenistan, Turks-Caicos Is., Ukraine, Uruguay, Uzbekistan, Vanuatu, Venezuelan Antilles, Vietnam, West Himalaya, Windward Is., Zambia, Zimbabwe

POWO follows these authorities in accepting this name:

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

Flora of West Tropical Africa

• —F.T.A. 3: 300.

Flora of Iraq

• D. J. Nicholas Hind (2019). Flora of Iraq, Volume 6: Compositae. Ghazanfar, S. A., Edmondson, J. R. & Hind, D. J. N. (Eds). Kew Publishing
• Hind & Robinson in Kubitzki, Fam. Gen. Vasc. Pl. 8: 522 [2006] (2007)
• Johnson, M.F. (1971). A monograph of the genus Ageratum L. (Compositae-Eupatorieae). Ann. Missouri Bot. Gard. 58(1): 6–88 (1971).
• L. Gen. Pl. ed. 5: 363 (1754)
• L. Sp. Pl. ed. 1: 839 (1753)
• Reveal, F.R. & Jarvis, C.E. (2009). Proposal to conserve the name Ageratum conyzoides (Asteraceae) with a conserved type.” Taxon 58(3): 1011. (2009).
• Sharma, V.H. (1987). Comments on the identity of Ageratum conyzoides L., and A. houstonianum Mill. – two naturalized weeds in India. Feddes Repert. 98(11–12): 557–560.

Flora of Somalia

• Flora Somalia, Vol 2, (1999) Author: by R.M. Polhill & D. Wiens [updated by M. Thulin 2008]

Flora of Tropical East Africa

• Bremer et al. in Asterac., Clad. & Class.: 649 (1994)
• M.F. Johnson in Ann. Missouri Bot. Gard. 58(1): 6 (1971)
• R.M. King & H. Rob., Genera of the Eupatorieae: 142 (1987)
• Sp. Pl.: 839 (1753)
• V.S. Sharma in F.R. 98: 557 (1987)