cankerweed
1. [ noun ] (botany) herb of northeastern North America having drooping clusters of yellowish-white flowers; sometimes placed in genus Prenanthes
Synonyms: Nabalus_alba Prenanthes_alba white_lettuce
Related terms: rattlesnake_root Nabalus
Similar spelling:   cancerweed
  cancer_weed
  cankerworm
  cankerous
  canker_brake