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Noun: Eupatorium rugosum
  1. American herb having flat-topped clusters of small white flower heads; reputedly a cause of trembles and milk sickness; sometimes placed in genus Eupatorium
    - white snakeroot, white sanicle, Ageratina altissima

Type of: herb, herbaceous plant

Part of: Ageratina, genus Ageratina

Encyclopedia: Eupatorium rugosum