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 Chalcosyrphus nemorum, Silver-spotted Skipper, Gray Hairstreak, and Syritta pipiens. Individuals can grow to 5 feet.
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