Centaurea diffusa (Diffuse Knapweed) is a species of annual herb in the family Asteraceae. They are associated with freshwater habitat. They are native to Yugoslavia, Russia, Bulgaria, Turkey, Ukraine, Moldova, Eastern Mediterranean, Armenia, Italy, Romania, Georgia, Azerbaijan, Greece, and Syria. They have achenes. Flowers are visited by Common Branded Skipper, Common Wood Nymph, Speyeria atlantis hesperis, and Plebejus melissa.
EOL has data for 14 attributes, including: