A small annual plant in the family Asteraceae, Centaurea cyanus, usually with bushy blue flowers which grows natively in European cornfields (i.e. wheatfields).
Cornflower blue.
A plant of the species Cichorium intybus.
Of a blue colour, as that of the cornflower; cornflower blue.
Any of the genus Centaurea of herbaceous thistle-like flowering plants.