eupatorium_rugosum
1. [ noun ] (botany) American herb having flat-topped clusters of small white flower heads; reputedly a cause of trembles and milk sickness; sometimes placed in genus Eupatorium
Synonyms: white_sanicle Ageratina_altissima white_snakeroot
Related terms: herb Ageratina
Similar spelling:   Eupatorium_purpureum
  Eupatorium_cannabinum
  Eupatorium_maculatum
  Eupatorium_aya-pana