vernonia

Thesaurus

Noun

1.

vernonia - any of various plants of the genus Vernonia of tropical and warm regions of especially North America that take their name from their loose heads of purple to rose flowers that quickly take on a rusty hueironweedgenus Vernonia - genus of New World tropical herbs or shrubs with terminal cymose heads of tubular flowersherb, herbaceous plant - a plant lacking a permanent woody stem; many are flowering garden plants or potherbs; some having medicinal properties; some are pests