Ageratina altissima

Thesaurus

Noun

1.

Ageratina altissima - American herb having flat-topped clusters of small white flower heads; reputedly a cause of trembles and milk sickness; sometimes placed in genus EupatoriumEupatorium rugosum, white sanicle, white snakerootAgeratina, genus Ageratina - annual to perennial herbs or shrubs of eastern United States and Central and South Americaherb, herbaceous plant - a plant lacking a permanent woody stem; many are flowering garden plants or potherbs; some having medicinal properties; some are pests