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CommentsThis is one of the easier Vernonia spp. (Ironweeds) to identify because of the distinctive appearance of the floral bracts (long and thread-like). No other Ironweed has this kind of floral bract at the base of the flowerheads. Great Ironweed also differs from other Ironweeds by its narrow leaves and the large number of disk florets (50-100) in each flowerhead. Other Ironweeds have flowerheads with fewer disk florets (20-50) and their flowerheads are less wide. Other common names of Vernonia arkansana that are occasionally used include 'Ozark Ironweed' and 'Curlytop Ironweed.' An alternative scientific name for this species is Vernonia crinita. I am happy to see this wonderful wildflower back in the state again.