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Annual Bluegrass
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Field Guide to Noxious and Other Selected Weeds of British Columbia

Spotted Knapweed
(Centaurea maculosa)

  • Provincial Noxious Weed

  • biennial to short-lived taprooted perennial with branched stems growing to 1.5 metres in height; deeply cut hairy leaves; very bitter to taste; purple, occasionally white flowers; flowerhead bracts with black-tipped fringe giving head a "spotted" appearance

  • one of 13 "knapweed" species in British Columbia

Black-tipped fringe on flowerhead bract

More information on knapweed
Return to Field Guide to Noxious and Other Selected Weeds of BC