Spotted Knapweed on a Pier in the Delaware River

(Centaurea stoebe)

March 2018

Spotted Knapweed growing out of a concrete pier

Spotted Knapweed growing out of a concrete pier

Spotted Knapweed growing out of a concrete pier

Spotted Knapweed growing out of a concrete pier

Spotted Knapweed growing out of a concrete pier

Spotted Knapweed growing out of a concrete pier