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539.wat 78496 1352744910 jpg
OAC-BIO Herbarium. University of Guelph, Canada. Year: 2012.   cc-by-nc-sa-3.0

Erigeron canadensis (Canada horseweed) is a species of shrub in the family Asteraceae. It has simple, broad leaves and white flowers. Flowers are visited by Antillean Blue, Polished Lady Beetle, Great Purple Hairstreak, and Large Orange Sulphur. It is a photoautotroph.

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EOL has data for 80 attributes, including:

Known occurrences, collected specimens and observations of Canada horseweed