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Image of Canadian Horseweed
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Canadian Horseweed

Erigeron canadensis L.

2012 Richard Spellenberg   cc-by-nc-sa-3.0

Erigeron canadensis (Canadian Horseweed) is a species of shrub in the family Asteraceae. They have a self-supporting growth form. They are native to US Minor Outlying Islands, Rio Grande Do Sul, Distrito Federal, Pantanal, Rio De Janeiro, Eastern North America, Canada, Caatinga, Western North America, Paraná, AmazôNia, Mata Atlântica, GoiáS, Puerto Rico, SãO Paulo, U.S. Virgin Islands, Cerrado, Bahia, Pampa, The Contiguous United States, Minas Gerais, Saint-Pierre Et Miquelon, and Santa Catarina. They have simple, broad leaves, white flowers, and achene. Flowers are visited by Dialictus, Chalcosyrphus nemorum, Systropus macer, and Cheilosia hoodiana. Individuals can grow to 5 feet.

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  • URI: http://purl.obolibrary.org/obo/PO_0030107
  • Definition: a fruit which develops from a carpel or gyneocium and at maturity comprises a dry exocarp, a dry mesocarp, and a dry endocarp that are connected to a seed coat by a funicle
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EOL has data for 78 attributes, including:

Known occurrences, collected specimens and observations of Canadian Horseweed. View this species on GBIF