Centaurea nigrescens Willd.
Family: Asteraceae
Tyrol knapweed,  more...
[Centaurea dubia subsp. vochinensis Suter,  more]
Centaurea nigrescens image
from USDA Plants website  
Etymology: Centaurea: ancient Greek plant-name, poetically associated with Chiron, the Centaur, but without wholly satisfactory explanation
Plants: perennial forb
Conservation Status: Introduced - adventive
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