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Text 
Squarrose knapweed
SQUARROSE KNAPWEED
Scientific name: Centaurea virgata
Photos: Steve Dewey, Utah State University
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Squarrose knapweed fact sheet (PDF)
Colorado Department of
Agriculture ·
700 Kipling Street ·
Suite 4000 ·
Lakewood, CO 80215-8000 ·(303) 239-4100