Vernonia arkansana (also known as Arkansas ironweed[1] and great ironweed[2]) is a species of perennial plant from family Asteraceae found in south-central United States.[3] The plant is 4–6 feet (1.2–1.8 m) high and 3–4 feet (0.91–1.22 m) wide. The flowers bloom from August to September and are pink-purple coloured.[4] The cultivar 'Mammuth' is a recipient of the Royal Horticultural Society's Award of Garden Merit.[5]
^Common name
^"Great Ironweed". Illinois Wild Flowers.info. Retrieved 8 September 2012.
^USDA, NRCS (n.d.). "Vernonia arkansana". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 9 September 2018.
^"Vernonia arkansana". Missouri Botanical Garden.org. Retrieved 8 September 2012.
^"Vernonia arkansana 'Mammuth'". RHS. Retrieved 31 October 2022.
Vernoniaarkansana (also known as Arkansas ironweed and great ironweed) is a species of perennial plant from family Asteraceae found in south-central United...
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