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Dogfennel, Eupatorium capillifolium


Family: Asteraceae (Sunflower)

Group: Dicot

Life span: Annual or short-lived perennial

Origin: North America

Growth form: Forb/herb

Erect, robust, up to 10 feet tall, with one to several stems arising from a woody base. Stems are hairy, rough, and reddish purple at the base. Leaves are mostly alternate and some lower leaves maybe opposite, once or twice pinnately dissected into fine linear segments below, simpler above and hairless. Numerous small flower heads with 3 to 6 greenish white disk flowers per head. Roots are fibrous with a taproot and coarse rhizome. Propagation is by seeds. Likes dry or wet conditions.