greater knapweed - centaurea scabiosa - asteraceae, asteracées

asteraceae asteracées base bears blossom bracts branched centaurea central cliffs clump crown deeply dissected dry europe extended field flower flowerheads flowers food form found garden genus grass grasslands greater growing heads hedgerows herb knapweed lavender leaves lime-rich meadow native nature outer perennial petal plant prairie produce purple purple-pink ragged ring scabiosa shrub single soil stems terminate thistle-like upright vegetable wildflower