Centaurea stoebe
Centaurea stoebe spotted knapweed
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Although the flowerheads of knapweed look similar to those of thistles, knapweeds do not have any prickles on any plant parts. The spotted knapweed's flowers can be either pink, purple, or white. The flower bracts supporting the flowerheads have black triangular tips. This knapweed is introduced from Europe and has become invasive.
Habitat & Range
Commonly naturalized in dry woods, fields, roadsides, and shale barrens.
Present throughout the state.
Wetland code: Not classified
Phenology
Flowers June to October.
Centaurea stoebe spotted knapweed
Plant form
Plant form & habitat
Flower and bud
Flower
Plant form
Flower
Leaf
Plant form
Plant Life-Form
biennial or perennial forb
Common Names
spotted knapweed
Comments
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