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Black Knapweed (Centaurea nigra)
Image ID: stv19Tap/mouseover and drag to zoom/pan.
Family: Asteraceae (Sunflower)
Height: 1 to 3 ft.
Blooms: July to September
Leaf Type: smooth
Bloom Size: 1 in. (typical)
Flower Description: Individual flowers, Parts indistinct
Location: Stavich Bicycle Trail
Notes: Dark, fringed bracts.
More photos of this flower
We started out as wildflowers from the bicycle trails of western Pennsylvania, but we've grown!
Meyer, Joseph E. (1918). The Herbalist and Herb Doctor. Hammond, Ind.: Indiana Herb Gardens. 400 pp.