any of certain composite plants of the genus Prenanthes, whose roots or tubers have been regarded as a remedy for snake bites, as P. serpentaria or P. alba.
the root or tuber.
the snakeroot, Polygala senega.
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- rattlesnake fern,
- rattlesnake flag,
- rattlesnake master,
- rattlesnake plantain,
- rattlesnake weed,
Origin of rattlesnake root
First recorded in 1675–85
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019