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Wisflora - Vascular Plant Species

University of  Wisconsin - Madison 

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Family: Asteraceae
  Genus: Centaurea

    Centaurea americana Nutt.+

        American knapweed, American star-thistle, basket-flower
    Centaurea biebersteinii DC.*+

        spotted knapweed
             Acosta maculosa auct. non Holub
             Centaurea maculosa auct. non Lam.
    Centaurea cyanus L.*+

        bachelor's-button, bluebottle, cornflower
             Leucacantha cyanus (L.) Nieuwl. & Lunell
    Centaurea debeauxii Gren. & Godr.
        meadow knapweed
    Centaurea debeauxii Gren. & Godr. subsp. thuillieri+

        meadow knapweed
    Centaurea diffusa Lam.+

        spreading knapweed, tumble knapweed, white knapweed
             Acosta diffusa (Lam.) SojŠk
    Centaurea jacea L.*+

        brown knapweed, brown-ray knapweed
    Centaurea macrocephala Muss.Puschk. ex Willd.*+

        big-head knapweed
    Centaurea melitensis L.
        Maltese star-thistle
    Centaurea montana L.*+

        mountain-bluet, mountain cornflower
    Centaurea nigra L.+

        black knapweed, lesser knapweed
             Centaurea nigra L. var. radiata DC.
    Centaurea nigrescens Willd.+

        Tyrol knapweed, Vochin knapweed
             Centaurea dubia Suter subsp. vochinensis
             Centaurea vochinensis Bernh. ex Rchb.
    Centaurea repens L.*+

        Russian knapweed
             Acroptilon repens (L.) DC.
             Centaurea picris Pall. ex Willd.
    Centaurea scabiosa L.*+

        greater knapweed, hard-heads
    Centaurea solstitialis L.*+

        St. Barnaby's thistle, yellow star-thistle

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