BONESET OR WHITE SNAKEROOT 



71 



until frost. The plant is a perennial, and if left undisturbed 

 remains for many years in open woodlands that are not too 

 closely pastured. 



p^,:y -yy^'. 



Fia. 36. — Boneset or white snakeroot. 



The species most common in the upper Mississippi region 

 is known as white snakeroot {E. urticcefolium) , which is sup- 



