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Any of various plants of the genus Vernonia of the composite family, having alternate leaves and clusters of purplish flower heads.
(Plants) any of various plants of the genus Verona, which have purple flowers and are found in North America, South America, Asia and Africa
any North American composite plant of the genus Vernonia having tubular, chiefly purple or red disk flowers.
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|Noun||1.||ironweed - 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 hue|
genus Vernonia - genus of New World tropical herbs or shrubs with terminal cymose heads of tubular flowers