Squarrose Knapweed
Centaurea virgata

Squarrose Knapweed adult
Squarrose knapweed is a native plant of the eastern Mediterranean area. It is very competitive on rangelands. Knapweed releases a chemical substance reducing competing vegetation. This long-lived perennial grows 12 to 18 inches tall.
Squarrose Knapweed rosette
The rosette and stems have deeply lobed leaves.
Squarrose Knapweed flower
Flowers are rose to pink. It is often confused with diffuse knapweed, but differs in that the toothed flower bracts are curved outward, and are not laterally toothed. Bloom occurs in early to mid-summer.