blue cornflower with green background. arable plant and medicinal plant. centaurea cyanus

cornflower blue flora wildflower blossom macro wildflora kornblume plant centaurea cyanus wild nature arable field garden herb medicinal blau green bee blueness butterfly healing pharmacist blumen flower frhling natur summer wildblumen annual button closeup bluebottle autumn corn flowers spring herbs top view herbst background pflanzen apothecary beetle homeopathic insect