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Connecticut Plants
Brown Knapweed
Centaurea jacea L.

Brown knapweed is one of several species of lavender-flowered knapweeds that grow in Connecticut (none of them native). The most common species is spotted knapweed.

  • Family: aster (Asteraceae)
  • Habitat: dry fields, meadows and roadsides
  • Height: 1-3 feet
  • Flower size: flowerheads 1 to 1-1/4 inch across
  • Flower color: magenta
  • Flowering time: June to September
  • Origin: Europe
Centaurea jacea L.
Centaurea jacea L.
Centaurea jacea L.

Note the long fringes of the bracts beneath the flowerhead. On brown knapweed, these fringes have tan or brown tips.