Russian Knapweed

(Centaurea repens)

Roots: Extensive, widely spreading, black, may penetrate over 8 feet.

Stems: Erect, openly branched.

Leaves: Alternate, clasping, lower leaves deeply lobed, upper leaves entire or serrated.

Seed: Small, oval.

Flowers: Numerous, disc shaped, pink to purplish, bracts below the flower have pointed papery sheaths.

Origin: Eurasia

Poisoning: None