Cornflower blue.
A plant of the species Cichorium intybus.
A small annual plant in the family Asteraceae, Centaurea cyanus, usually with bushy blue flowers which grows natively in European cornfields (i.e. wheatfields).
Of a blue colour, as that of the cornflower; cornflower blue.
A perennial flowering plant, Campanula rotundifolia, native to the Northern Hemisphere, with blue, bell-like flowers.