Synonyms for Black Snakeroot (same or very similar meaning)
WordNet sense 1 (deciduous low-growing perennial of Canada and eastern and central United States):
Canada ginger, Asarum canadenseWordNet sense 2 (North American bugbane found from Maine and Ontario to Wisconsin and south to Georgia):
rattle-top, black cohosh, Cimicifuga racemosaFrom the ODE community, based on WordNetadd/edit