Serpentaria

·adj The fibrous aromatic root of the Virginia snakeroot (Aristolochia Serpentaria).

serpentaria
serpentārĭa, ae, f. (sc. herba) [serpens], snakeweed , otherwise called veperina, App. Herb. 5. ...

A New Latin Dictionary by Charlton T. Lewis Ph.D. and Charles Short, LL. D.