1. Noun
A medicinal plant, the thoroughwort (Eupatorium perfoliatum). Its properties are diaphoretic and tonic.
2. Noun
perennial herb of southeastern United States having white-rayed flower heads; formerly used as in folk medicine
Vocabulary classified under Biology
3. Noun
European herb having small white, pink or purple flowers; naturalized as a weed in North America
Vocabulary classified under Nature and environment
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