noun
American herb having flat-topped clusters of small white flower heads; reputedly a cause of trembles and milk sickness; sometimes placed in genus Eupatorium
• Syn: ↑white snakeroot, ↑white sanicle, ↑Eupatorium rugosum
• Hypernyms: ↑herb, ↑herbaceous plant
• Member Holonyms: ↑Ageratina, ↑genus Ageratina
Useful english dictionary. 2012.