Erigeron canadensis L.

Native to:

Alabama, Alberta, Arizona, Arkansas, Bahamas, Belize, Bolivia, Brazil North, Brazil Northeast, Brazil South, Brazil Southeast, Brazil West-Central, British Columbia, California, Cayman Is., Colombia, Colorado, Connecticut, Costa Rica, Dominican Republic, Ecuador, El Salvador, Florida, French Guiana, Galápagos, Georgia, Guatemala, Haiti, Honduras, Idaho, Illinois, Indiana, Iowa, Jamaica, Kansas, Kentucky, Leeward Is., Louisiana, Maine, Manitoba, Maryland, Massachusetts, Mexico Central, Mexico Gulf, Mexico Northeast, Mexico Northwest, Mexico Southeast, Mexico Southwest, Michigan, Minnesota, Mississippi, Missouri, Montana, Nebraska, Nevada, New Hampshire, New Jersey, New Mexico, New York, Nicaragua, North Carolina, North Dakota, Nova Scotia, Ohio, Oklahoma, Ontario, Oregon, Panamá, Pennsylvania, Peru, Prince Edward I., Puerto Rico, Québec, Rhode I., Saskatchewan, South Carolina, South Dakota, Suriname, Tennessee, Texas, Trinidad-Tobago, Turks-Caicos Is., Utah, Venezuela, Vermont, Virginia, Washington, West Virginia, Windward Is., Wisconsin, Wyoming

Introduced into:

Afghanistan, Albania, Algeria, Altay, Amur, Angola, Assam, Austria, Azores, Baleares, Baltic States, Bangladesh, Belarus, Belgium, Bulgaria, Cambodia, Canary Is., Cape Provinces, Caroline Is., Chagos Archipelago, China North-Central, Corse, Czechoslovakia, Denmark, East Aegean Is., East European Russia, East Himalaya, Fiji, Finland, France, Free State, Germany, Great Britain, Greece, Hawaii, Hungary, India, Inner Mongolia, Iran, Iraq, Ireland, Italy, Japan, Kazakhstan, Khabarovsk, Kirgizstan, Korea, Krasnoyarsk, Kriti, Krym, Kuril Is., KwaZulu-Natal, Lebanon-Syria, Lesotho, Libya, Madeira, Marianas, Marquesas, Marshall Is., Mauritius, Morocco, Mozambique, Nepal, Netherlands, New Guinea, New South Wales, Newfoundland, Niue, Norfolk Is., North Caucasus, Northern Provinces, Northwest European R, Norway, Pakistan, Palestine, Philippines, Poland, Portugal, Primorye, Queensland, Romania, Réunion, Sakhalin, Sardegna, Sicilia, Sinai, South Australia, South European Russi, Spain, Swaziland, Sweden, Switzerland, Tadzhikistan, Taiwan, Tasmania, Transcaucasus, Tunisia, Turkey, Turkey-in-Europe, Turkmenistan, Ukraine, Uzbekistan, Victoria, Vietnam, Wake I., West Himalaya, West Siberia, Western Australia, Yakutskiya, Yugoslavia, Zambia, Zimbabwe

POWO follows these authorities in accepting this name:

• Aver'ianov, L.V. & al. (2006). Illyustrirovannyi opredelitel' rastenii Leningradskoi oblasti: 1-799. Nauka, Moskva.
• Balkrishna, A. (2018). Flora of Morni Hills (Research & Possibilities): 1-581. Divya Yoga Mandir Trust.
• GCC (2011). Global Compositae Checklist http://compositae.landcareresearch.co.nz/.
• Ghafoor, A. & al. (2021). Flora of Pakistan 224: 1-310. Department of Botany, University of Karachi, Karachi.
• Gorchakovskii, P.L. & al. (1994). Opredelitel' sosudistykkhrastenii srednego Urala: 1-524. Nauka, Moscow.
• Komiljon, T., Natalya, B., Avazbek, B., Dilnoza, A., Ziyoviddin, Y., Deng, T. & Sun, H. (2020). Flora of the Dzhizak Province, Uzbekistan: 1-523. China Forestry Publishing House.
• Krasnoborov, I.M. (ed.) (2007). Flora of Siberia 13: 1-499. Scientific Publishers, Inc., Enfield, Plymouth.
• Liogier, A.H. (1996). Flora de la Española 8: 1-588. Instituto Tecnológico de Santo Domingo.
• Lorence, D.H. & Wagnwe, W.L. (2020). Flora of the Marquesas Islands 2: 413-1135. National Tropical Botanic Garden, Smithsonian, DRPF.
• Meades, S.J. & Brouillet, L. (2019). Annotated Checklist of the Vascular Plants of Newfoundland and Labrador https://newfoundland-labradorflora.ca/checklist/.
• Muer, T., Sauerbier, H. & Cabrara Calixto, F. (2020). Die Farn- und Blütenpflanzen Madeiras: 1-792. Verlag und Versandbuchhandlung Andreas Kleinsteuber.
• Sarder, N.U. & Hassan, M.A. (eds.) (2018). Vascular flora of Chittagong and the Chittagong Hill Tracts 3: 1-978. Bangladesh National Herbarium, Dhaka.
• Schäfer, H. (2021). Flora of the Azores a field guide: 1-445. Margraf Publishers GmbH.
• Wu, Z. & Raven, P.H. (eds.) (2011). Asteraceae. Flora of China 20-21: 1-992. Science Press (Beijing) & Missouri Botanical Garden Press (St. Louis).
• de Salas, MF, Baker, ML (2022). A Census of the Vascular Plants of Tasmania, including Macquarie Island: 1-161. Tasmanian Herbarium, Tasmanian Museum and Art Gallery, Hobart. https://flora.tmag.tas.gov.au/resources/census/.

An alternative taxonomy had been proposed by the following authorities:

• Flora of North America Editorial Committee (2006). Asteraceae. Flora of Australia 20: 1-666. Australian Government Publishing Service, Canberra. [Cited as Conyza canadensis.]

Kew Backbone Distributions

• (2022). https://doi.org/10.11646/phytotaxa.539.2.3. epublication.
• Aver'ianov, L.V. & al. (2006). Illyustrirovannyi opredelitel' rastenii Leningradskoi oblasti: 1-799. Nauka, Moskva.
• Barooah, C. & Ahmed, I. (2014). Plant diversity of Assam. A checklist of Angiosperms and Gymnosperms: 1-599. Assam science technology and environment council, India.
• Chou, S., Chhnang, P. & Kim, Y. (2016). A Checklist for the Seed Plants of Cambodia: 1-272. National Institute of Biological Resources, Korea.
• Forzza, R.C., Zappi, D. & Souza, V.C. (2016-continuously updated). Flora do Brasil 2020 em construção http://reflora.jbrj.gov.br/reflora/listaBrasil/ConsultaPublicaUC/ResultadoDaConsultaNovaConsulta.do.
• Gorchakovskii, P.L. & al. (1994). Opredelitel' sosudistykkhrastenii srednego Urala: 1-524. Nauka, Moscow.
• Kharkevich, S.S. (ed.) (1992). Plantae Vasculares Orientalis Extremi Sovietici 6: 1-428. Nauka, Leningrad.
• Krasnoborov, I.M. (ed.) (2007). Flora of Siberia 13: 1-499. Scientific Publishers, Inc., Enfield, Plymouth.
• Lorence, D.H. & Wagnwe, W.L. (2020). Flora of the Marquesas Islands 2: 413-1135. National Tropical Botanic Garden, Smithsonian, DRPF.
• Meades, S.J. & Brouillet, L. (2019). Annotated Checklist of the Vascular Plants of Newfoundland and Labrador https://newfoundland-labradorflora.ca/checklist/.
• Nikolin, E.G. (2020). Opredelitel' vysshikh rasteniy Yakutii: 1-895. Moskva : Tovarishchestvo Nauchnykh Izdaniy KMK Novosibirsk "Nauka".
• Pruski, J.F. (ed.) (2018). Flora Mesoamericana 5(2): 1-608. Universidad Nacional Autónoma de México, México, D.F.
• Sarder, N.U. & Hassan, M.A. (eds.) (2018). Vascular flora of Chittagong and the Chittagong Hill Tracts 3: 1-978. Bangladesh National Herbarium, Dhaka.
• Shevtsov, V. (2022). Personal communication on the Flora of the Volgograd region. 1.
• Zhao, Y.Z., Zhao, L.Q. & Rui, C. (eds.) (2019). Flora Intramongolica, edition 3, 5: 1-451. Typis Intramongolicae popularis, Huhhot.

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
• Burkill HM. (1995). The useful plants of west tropical Africa, Vols. 1-3. The useful plants of west tropical Africa, Vols 1-3.
• Cámara-Leret, R., & Dennehy, Z. (2019). Information gaps in indigenous and local knowledge for science-policy assessments. Nature Sustainability 2:736-741.
• 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.
• FPI (2021). Food Plants International. https://fms.cmsvr.com/fmi/webd/Food_Plants_World?homeurl=https://foodplantsinternational.com/plants/
• GBIF.org (2021). GBIF species matching tool. https://www.gbif.org/tools/species-lookup
• GRIN (2021). Germplasm Resources Information Network from the United States Department of Agriculture. https://www.ars-grin.gov/
• Instituto de Investigación de Recursos Biológicos Alexander von Humboldt. (2014). Plantas alimenticias y medicinales nativas de Colombia. 2567 registros, aportados por: Castellanos, C. (Contacto del recurso), Valderrama, N. (Creador del recurso, Autor), Bernal, Y. (Autor), García, N. (Autor). http://i2d.humboldt.org.co/ceiba/resource.do?r=ls_colombia_magnoliophyta_2014
• Medicinal Plant Names Services (MPNS) v.10 (2021); http://mpns.kew.org/
• PROTA (2021). Plants Resources of Tropical Africa. https://prota4u.org/database/
• RBG, Kew (2021). Kew Economic Botany Collection. https://ecbot.science.kew.org/
• Willis, K.J. (ed.) (2017). State of the World’s Plants 2017. Report. Royal Botanic Gardens, Kew.