Asteraceae
Tall ironweed
Vernonia angustifolia
- Family
- Asteraceae
- Genus
- Vernonia
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Common names
By language (1)
- English
- Tall ironweed
Synonyms
- Cacalia angustifolia (Michx.) Kuntze
- Cacalia graminifolia (Gardner) Kuntze
- Chrysocoma angustifolia Steud.
- Chrysocoma graminifolia Walter
- Liatris umbellata Bertol.
- Marshallia graminifolia var. cyananthera (Elliott) Beadle & F.E.Boynton
- Marshallia lacinarioides Small
- Marshallia tenuifolia Raf.
- Marshallia tenuifolia var. graminifolia (Walter) Gandhi & R.D.Thomas
- Marshallia tenuifolia var. tenuifolia
- Marshallia williamsonii Small
- Vernonia angustifolia var. angustifolia
- Vernonia graminifolia (Walter) C.Mohr
- Vernonia graminifolia (Walt.) Mohr
- Vernonia granienifolia Trel., Branner & Coville ex Branner.
- Vernonia granienifolia (Walt.) Trel., Branner & Coville ex Branner.
Characteristics
- Growth habit
- Forb/herb
- Lifespan
- Perennial
- In the US and Canada
- Lower 48 states: native
Photos

Photo: Melissa McMasters, CC BY 2.0, from Wikimedia Commons
More in Vernonia
- Vernonia amygdalinaAsteraceae
- New York ironweedVernonia noveboracensisAsteraceae
- Giant ironweedVernonia giganteaAsteraceae
- Arkansas ironweedVernonia arkansanaAsteraceae
- Vernonia arboreaAsteraceae
- Baldwin's ironweedVernonia baldwiniiAsteraceae
- Prairie ironweedVernonia fasciculataAsteraceae
- Missouri ironweedVernonia missuricaAsteraceae
- Vernonia cockburnianaAsteraceae
- Vernonia djalonensisAsteraceae
- Narrowleaf ironweedVernonia lettermanniiAsteraceae
- Vernonia sechellensisAsteraceae
Sources: classification, synonyms from World Flora Online Plant List (2026-06, CC0 1.0); common names, popularity from Wikidata (2026-10-26, CC0 1.0); common names, US characteristics from USDA PLANTS Database (2025-05-29, CC0 1.0). About our plant data.