Gamochaeta americana (Mill.) Wedd.

Native to:

Argentina Northeast, Argentina Northwest, Argentina South, Bolivia, Brazil Northeast, Brazil South, Brazil Southeast, Brazil West-Central, Chile Central, Chile South, Colombia, Costa Rica, Cuba, Dominican Republic, Ecuador, El Salvador, Falkland Is., Galápagos, Guatemala, Haiti, Honduras, Jamaica, Mexico Central, Mexico Gulf, Mexico Northeast, Mexico Northwest, Mexico Southeast, Mexico Southwest, Nicaragua, Panamá, Paraguay, Peru, Puerto Rico, Uruguay, Venezuela

Introduced into:

Alabama, Arkansas, Belgium, Bermuda, California, Cape Provinces, China South-Central, Corse, Eswatini, Florida, France, Georgia, India, Iran, Italy, Japan, Kermadec Is., KwaZulu-Natal, Louisiana, Mississippi, Myanmar, Netherlands, New South Wales, New Zealand North, New Zealand South, Norfolk Is., North Carolina, Northern Provinces, Ogasawara-shoto, Portugal, Queensland, South Australia, South Carolina, Spain, Sri Lanka, Taiwan, Texas, Tristan da Cunha, Victoria, Virginia, West Himalaya, Western Australia

POWO follows these authorities in accepting this name:

• (2021). https://doi.org/10.11646/phytotaxa.523.4.1. epublication.
• Freire, S.E. & al. (2024). Taxonomic revision and morphometric analysis of Gamochaeta (Asteraceae, Gnaphalieae). Annals from the Missouri Botanical Garden 109: 244-320. MBG press.
• Pruski, J.F. (ed.) (2018). Flora Mesoamericana 5(2): 1-608. Universidad Nacional Autónoma de México, México, D.F.

An alternative taxonomy had been proposed by the following authorities:

• Roskov Y. & al. (eds.) (2018). Species 2000 & ITIS Catalogue of Life Naturalis, Leiden, the Netherlands. [Cited as Gamochaeta purpurea.]

Catálogo de Plantas y Líquenes de Colombia

• Bernal, R., Gradstein, S.R. & Celis, M. (eds.). 2015. Catálogo de plantas y líquenes de Colombia. Instituto de Ciencias Naturales, Universidad Nacional de Colombia, Bogotá. http://catalogoplantasdecolombia.unal.edu.co

Kew Backbone Distributions

• (2023). https://rostaniha.areeo.ac.ir/article_129620.html. epublication.
• Aung, Y.L., Aung, M.H., Tan, Y. & Jin, X. (2025). An updated checklist of vascular plants of Myanmar. PhytoKeys 261: 135-364.
• Benedi, C. & al. (eds.) in Castroviejo, S. & al. (eds.) (2019). Flora Iberica 16(III): 1453-2353. Real Jardín Botánico, CSIC, Madrid.
• Mao, A.A. & Dash, S.S. (2020). Flowering Plants of India an Annotated Checklist (Dicotyledons) 1: 1-970. Botanical Survey of India.
• Pruski, J.F. (ed.) (2018). Flora Mesoamericana 5(2): 1-608. Universidad Nacional Autónoma de México, México, D.F.

Useful Plants and Fungi of Colombia

• Bernal, R., Gradstein, S.R., & Celis, M. (eds.). (2020). Catálogo de Plantas y Líquenes de Colombia. v1.1. Universidad Nacional de Colombia. Dataset/Checklist. https://doi.org/10.15472/7avdhn
• Diazgranados et al. (2021). Catalogue of plants of Colombia. Useful Plants and Fungi of Colombia project. In prep.
• Diazgranados, M., Allkin, B., Black N., Cámara-Leret, R., Canteiro C., Carretero J., Eastwood R., Hargreaves S., Hudson A., Milliken W., Nesbitt, M., Ondo, I., Patmore, K., Pironon, S., Turner, R., Ulian, T. (2020). World Checklist of Useful Plant Species. Produced by the Royal Botanic Gardens, Kew. Knowledge Network for Biocomplexity.
• GBIF.org (2021). GBIF species matching tool. https://www.gbif.org/tools/species-lookup
• Garcia, H. (1992). Flora Medicinal de Colombia. Botánica Médica. Segunda Edición. Tercer Mundo Editores. Tomo III.
• Instituto de Investigación de Recursos Biológicos Alexander von Humboldt (2019). Lista de especies vedadas por la resolución 213 de 1977. 8256 especies. http://i2d.humboldt.org.co/ceiba/resource.do?r=le_plantaspriorizadas_2019
• Medicinal Plant Names Services (MPNS) v.10 (2021); http://mpns.kew.org/