1 species
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Cyclachaena xanthiifoliacarelessweed, burweed marsh-elder, tall marsh-elder
Distribution: Ocurring east of the Cascades crest in Washington; British Columbia to California, east across much of North America to the Atlantic Coast.
Habitat: Bottomlands and other moist, open, often disturbed areas.
Origin: Introduced from south-central Canada and the central U.S.
Flowers: August-October
Growth Duration: Annual