Definition of seneca snakeroot
: a milkwort (Polygala senega) of eastern North America having racemes of small white flowers —called also rattlesnake root, senega root — compare senega
Medical Definition of seneca snakeroot
: a North American plant of the genus Polygala (P. senega) whose dried root was formerly used as an expectorant
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Medical Dictionary: Definition of seneca snakeroot
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