snakeroot.

Any member of the genus Ageratina of perennials and rounded shrubs from the sunflower family, growing mainly in the warmer regions of the Americas.

Any of various plants of other genera, including: Eupatorium spp.

Any of various plants of other genera, including: Asarum canadense (Canadian snakeroot)

Any of various plants of other genera, including: Aristolochia serpentaria (Virginia snakeroot)

Any of various plants of other genera, including: Eryngium cuneifolium

Any of various plants of other genera, including: Plantago major

Any of various plants of other genera, including: Polygala senega (Seneca snakeroot)

Any of various plants of other genera, including: Rauvolfia serpentina (Indian snakeroot).

Any of various plants of other genera, including: Bistorta officinalis (common bistort)