The cornflower (Centaurea cyanus) is also called bachelor's button, or basket flower. It is an annual flowering plant in the family Asteraceae. It originated in Europe, but has been taken to many other places like Australia. It bears flowers once a year.
It is grown as an ornamental plant in gardens. Several cultivars have been selected with varying pastel colours, including pink and purple. The flower gives its name to the characteristic blue colour.
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