Cornflower

Cornflower

Cornflower Centaurea cyanus is also known as Bachelor's Button and like other members of the knapweed genus it has flowering heads which have no ray-florets but just disk-florets with the marginal ones enlarged. The flowers are usually blue but are sometimes white or pink. The stems are grooved and the narrow leaves are covered with downy hairs. This species comes from Europe and now grows in waste places in North America. [CH] {MV}