Any one of several plants of different genera and species, most of which are (or were formerly) reputed to be efficacious as remedies for the bites of serpents; also, the roots of any of these.

Aristolochia serpentaria, a perennial herb also called Virginia Snakeroot, Snagrel, Sangrel, Snakeweed and Texas Snakeroot. White Snakeroot is Eupatorium rugosum, a plant related to the daisy that is also called White Sanicle and Richweed. Black Snakeroot is another name for Black Cohosh ( Cimicifuga racemosa), which is also called Bugbane and Rattlesnake Root.

a plant of the genus Sanicula having palmately compound leaves and unisexual flowers in panicled umbels followed by bristly fruit; reputed to have healing powers