Sampson snakeroot
noun
variants:
or Sampson's snakeroot
or less commonly Samson snakeroot
Definition of Sampson snakeroot
1
: an aromatic herb (Psoralea psoralioides) of the southeastern U.S. with a root having tonic properties
— called also babroot, Congo root
2
: any of several American gentians of the genus Dasystephana
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