WISCONSIN BOTANICAL INFORMATION SYSTEM
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Wisflora - Vascular Plant Species

University of  Wisconsin - Madison 

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Family: Asteraceae
  Genus: Vernonia

    Vernonia arkansana DC.
        Arkansas ironweed, Ozark ironweed
             Vernonia crinita Raf.
    Vernonia baldwinii Torr.
        Baldwin's ironweed, western ironweed
    Vernonia fasciculata Michx.
        common ironweed, prairie ironweed, smooth ironweed
    Vernonia fasciculata Michx. subsp. fasciculata*+

        common ironweed, prairie ironweed, smooth ironweed
             Vernonia fasciculata Michx. var. fasciculata

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