Such an apt name for this polka dot array of flowers. Centaurea cyanus (Cornflower, Bachelor's button, Bluebottle, Boutonniere flower, Hurtsickle, Cyani flower) is a small annual flowering plant in the family Asteraceae, native to Europe. "Cornflower" is also erroneously used for chicory, and more correctly for a few other Centaurea species; to distinguish C. cyanus from these it is sometimes called Common Cornflower. It may also be referred to as basket flower, though the term properly refers to the Plectocephalus group of Centaurea, which is probably a distinct genus. It is an annual plant growing to 16-35 inches tall, with grey-green branched stems.
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