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Warning! This is an
invasive plant, which has the potential to aggressivley crowd out native species. Learn
more about invasive plants!
Black Knapweed (Centaurea nigra)
Image ID: mtr68
Permalink:
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Invasive
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: Montour Trail
Date: 6/29/2003
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.
