White snakeroot

Ageratina altissima, White snakeroot is a poisonous, perennial, shrubby plant that belongs to the Compositae (Asteraceae) family. It is known by the following names: richweed, white sanicle, and tall boneset. Ageratina altissima var. angustata and Ageratina altissima var. roanensis. They differ in the length and shape of the flower tips. Structure of Ageratina altissima The […]