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cornflower

cornflower, common herb ( Centaurea cyanus ) of the family Asteraceae ( aster family). It is a garden flower in the United States but a weed in the grainfields of Europe. It is called bluebottle or bluet in England and bluebonnet in Scotland in North America the cornflower shares with other plants the names ragged robin, bachelor's button, or ragged sailor. The long-stemmed blue heads of the flowers, having radiating bottle- or vase-shaped florets, yield a juice which, mixed with alum, has been used as a dye. Cornflowers are classified in the division Magnoliophyta , class Magnoliopsida, order Asterales, family Asteraceae.

The Columbia Electronic Encyclopedia, 6th ed. Copyright © 2012, Columbia University Press. All rights reserved.

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The Columbia Electronic Encyclopedia, 6th ed. Copyright © 2012, Columbia University Press. All rights reserved.