Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun ageratina_altissima
1 sense of ageratina altissima
Sense 1
white snakeroot, white sanicle, Ageratina altissima, Eupatorium rugosum -- (American herb having flat-topped clusters of small white flower heads; reputedly a cause of trembles and milk sickness; sometimes placed in genus Eupatorium)
=> herb, herbaceous plant -- (a plant lacking a permanent woody stem; many are flowering garden plants or potherbs; some having medicinal properties; some are pests)