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Synonyms for Snakeroot (same or very similar meaning)

WordNet sense 1 (a plant of the genus Sanicula having palmately compound leaves and unisexual flowers in panicled umbels followed by bristly fruit; reputed to have healing powers):

WordNet sense 2 (any of various North American plants of the genus Liatris having racemes or panicles of small discoid flower heads):
gayfeather, gay-feather, button snakeroot, blazing star

From the ODE community, based on WordNetadd/edit