dry thistle in august. carduus, thistle, is a genus of flowering plants in the aster family, asteraceae, and the tribe cynareae.

agriculture aster asteraceae august background black bloom blossom botany brown carduus color cynareae detail dry environment family flora floral flower flowering fresh garden genus globe gray greece green growth healthy island kolympia landscape leaf macro material meadow natural nature organic outdoor plant plants rhodes rock rough scenery stone summer thistle thistles travel tribe wild