in taxon plant used for medicine seneca snakeroot plant Seneca snakeroot PLANTS:POSE3 Polygala senega is a species of flowering plant in the milkwort family, *Polygalaceae*. It is native to North America, where it is distributed in southern Canada and the central and eastern United States. Its common names include Seneca snakeroot, senega snakeroot, senegaroot, rattlesnake root, and mountain flax. [https://en.wikipedia.org/wiki/Polygala_senega] mountain flax polygala senega rattlesnake root senega snakeroot senegaroot Senega officinalis requires discussion