knapweed, centaurea is a genus of between 350 and 600 species

350 600 alps america angiosperms asparagales asteraceae beautiful beauty bloom blooming blossom canada centaurea closeup conservation environment environmental europe family field flora floral flower flowering garden genus greater green herbaceous horticulture invasive julian knapweed macro maculosa mauve meadow natural nature north northern outdoors outside pink pioneer plant plants preservation purple slovenia species spotted summer thistle usa weed wildflower