Noun: ironweed 'I(-u)rn,weed
- 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
"Ironweed's purple blooms stood tall in the late summer meadow";
- vernonia
Derived forms: ironweeds
Type of: herb, herbaceous plant
Part of: genus Vernonia
Encyclopedia: Ironweed