purple avens

(noun) North American perennial with hairy basal pinnate leaves and purple flowers and plume-tipped fruits. Synonyms: prairie smoke, purple avens, Geum triflorum.

(noun) erect perennial of north temperate zone having pinnate leaves and a few nodding flowers with a brown-purple calyx and orange and pink petals. Synonyms: water avens, Indian chocolate, purple avens, chocolate root, Geum rivale.