U.S. DEPARTMENT OF THE INTERIORBUREAU OF LAND MANAGEMENT
 
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Spotted Knapweed

Centaurea maculosa L.

Spotted knapweed is a biennial or short lived perennial with a stout taproot. It usually grows 1 to 3 feet tall. The flowers are pinkish-purple. The flower head contains stiff bracts, tipped with a dark fringe, giving the plant its name. Flowering occurs from June to October. This plant is very aggressive and can infest large areas quickly. It offers very little forage value for livestock or wildlife.


Spotted Knapweed - Centaurea maculosa L.

Spotted Knapweed - Centaurea maculosa L.


 
Last updated: 04-11-2007