Galapagos Species Database
The Galapagos Species Database shares the information about the species from our Natural History Collections.
Erigeron canadensis
Coniza, crisantemo, pegajosa, hierba de caballo, Horseweed, canadian horseweed, bitter weed































Domain
Eukaryota
Kingdom
Plantae
Phylum
Magnoliophyta
Class
Magnoliopsida (= Dicotyledoneae)
Order
Asterales
Family
Asteraceae
Genus
Erigeron
Species
canadensis
Taxon category: Accepted
Syn.: Conyza canadensis (L.) Cronquist (POWO, 2022);
Origin: Introduced - established
Year of first record: 1986
Mode of introduction: Accidental
Introduction Pathway: Contaminant
Subpathway: Contaminant on plants (inc. seeds and plant associated material)
Introduced status: Naturalized
Invasive status: No data
Map of specimen collection localities or observation records for this species in our collections database.
- CONABIO (2009) Catálogo taxonómico de especies de México. Cap. nat. México 1.
- Guézou, A. Trueman, M., Buddenhagen, E., Chamorro, S., Guerrero, A.M., Pozo, P., Atkinson, R. (2010) An extensive Alien Plan Inventory from the Inhabited Areas of Galapagos Plos One/ www.plosone.org. Volume 5/ Issue 4/e10276
- Jørgensen, P.M. León-Yánez, S. (eds.) (1999) Catalogue of the Vascular Plants of Ecuador. Monographs in Systematic Botany from the Missouri Botanical Garden 75. Missouri Botanical Garden Press, St. Louis, 1181 pp.
- Lawesson, J.E. (1987) Plantas exóticas en las Islas Galápagos, un resumen. Memorias. Taller sobre investigación Botánica y manejo en Galápagos. Pg. 17-23.
- Nash, D.L. (1976) Tribe III, Astereae. In: Nash, D.L. & Williams, L.O. (eds.): Flora of Guatemala - Part XII. Fieldiana, Bot. 24(12): 128–164, 483–495.
- Nash, D.L. (1976) Tribe V, Heliantheae. In: Nash, D.L. & Williams, L.O. (eds.): Flora of Guatemal a - Part XII. Fieldiana, Bot. 24(12): 181–361, 503–570.
- Nowak, J.B. Lawesson, J., Adsersen, H., de Vries, T. (1987) Dos años de estudio de la dinámica de la vegetación posterior al incendio en el sur de Isabela, Islas Galápagos, Ecuador. Memorias. Taller sobre Investigación Botánica y Manejo en Galápagos. Pg. 139-153.
- Royal Botanic Gardens, Kew (2022) Plants of the world online POWO (2022): Plants of the world online. Published on the Internet; Https://powo.science.kew.org/
- Tropicos.org. (2017) Database of Missouri Botanical Garden. Tropicos.org. Missouri Botanical Garden. 06 Oct 2017 <http://www.tropicos.org
You are welcome to download and use the information found in this page, acknowledging its source.
This page should be cited as follows:
"Galapagos Species Database, Erigeron canadensis", dataZone. Charles Darwin Foundation, https://datazone.darwinfoundation.org/en/checklist/?species=20364. Accessed 26 June 2026.