Robert W. Freckmann Herbarium

Search Results:       Common Name: knapweed

List for printing without synonyms and photos.
Checklist from Wisconsin State Herbarium
Click on taxon for details including: Photos ( * ), Distribution Maps ( + ), Ethnobotany and Google Search.
      Family Asteraceae (click for list of genera only)  
            Centaurea L. *
              knapweed, star-thistle (DISTRIBUTION MAP GALLERY of SPECIES)
            Centaurea americana Nutt. * +
              American knapweed, American star-thistle, basket-flower
Image of Centaurea americana Nutt.
            Centaurea biebersteinii DC. * +
              spotted knapweed
                 Acosta maculosa auct. non Holub
                 Centaurea maculosa auct. non Lam.
Image of Centaurea biebersteinii DC.
            Centaurea debeauxii Gren. & Godr. subsp. thuillieri DostŠl * +
              meadow knapweed
Image of Centaurea debeauxii Gren. & Godr. subsp. thuillieri DostŠl
            Centaurea diffusa Lam. * +
              spreading knapweed, tumble knapweed, white knapweed
                 Acosta diffusa (Lam.) SojŠk
Image of Centaurea diffusa Lam.
            Centaurea jacea L. * +
              brown knapweed, brown-ray knapweed
Image of Centaurea jacea L.
            Centaurea macrocephala Muss.Puschk. ex Willd. * +
              big-head knapweed
Image of Centaurea macrocephala Muss.Puschk. ex Willd.
            Centaurea nigra L. * +
              black knapweed, lesser knapweed
                 Centaurea nigra L. var. radiata DC.
Image of Centaurea nigra L.
            Centaurea nigrescens Willd. * +
              Tyrol knapweed, Vochin knapweed
                 Centaurea dubia Suter subsp. vochinensis (Bernh.ex Rchb.) Hayek
                 Centaurea vochinensis Bernh. ex Rchb.
Image of Centaurea nigrescens Willd.
            Centaurea repens L. * +
              Russian knapweed
                 Acroptilon repens (L.) DC.
                 Centaurea picris Pall. ex Willd.
Image of Centaurea repens L.
            Centaurea scabiosa L. * +
              greater knapweed, hard-heads
Image of Centaurea scabiosa L.

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