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*Centaurea nigra Linnaeus. Black Knapweed, Spanish-buttons. Phen: Jul-Oct. Hab: Roadsides, disturbed areas. Dist: Native of Europe.

Origin/Endemic status: Europe

Synonymy: = C, FNA19, G, Il, K1, K3, K4, Mi, NE, NY, Oh3, Pa, SE1; = n/a – RAB; > Centaurea nigra L. var. nigra – F; > Centaurea nigra L. var. radiata DC. – F

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image of plant© Tyler, some rights reserved (CC BY), uploaded by Tyler source CC-BY | Original Image ⭷ Warning: was NOT research grade.
image of plant© Tyler, some rights reserved (CC BY), uploaded by Tyler source CC-BY | Original Image ⭷ Warning: was NOT research grade.
image of plant© Tyler, some rights reserved (CC BY), uploaded by Tyler source CC-BY | Original Image ⭷ Warning: was NOT research grade.

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