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