bastard feverfew

Noun
  1. Tropical American annual weed with small radiate heads of white flowers;
    Adventive in southern United States (synset 112021546)
    is a type of: weed - any plant that crowds out cultivated plants
    belongs to: genus parthenium, parthenium - small genus of North American herbs and shrubs with terminal panicles of small ray flowers
    same as: parthenium hysterophorus

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