snakeweed

(-wēd′)

noun

any of several plants supposedly resembling snakes or reputedly a cure for snakebites; specif.,
  1. any of various plants (genus Gutierrezia) of the composite family, with small, yellow flower heads
  2. bistort
  3. ☆ snakeroot

See snakeweed in American Heritage Dictionary 4

noun
Any of various plants, such as bistort, reputed to have the power to cure snakebite.
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