| Common Name: | Black Knapweed |
| Family: | Asteraceae |
| Genus: | Centaurea |
| Species: | nigra |
| Classification/Rank: | Extremely Invasive |
| Method of Transportation: | |
| Habitat/Range: |
• perennial herb that grows 0.1-0.8m tall • stems are erect, branched, and rough hairy • leaves are toothed, or shallowly lobed to entire, and are hairy above and below; lower leaves are long stalked and become unstalked with increasing plant height • flowers are disk shaped, purple, and found solitarily at the end of upper branches
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