Centaurea cyanus L. - Cornflower, Bachelor's Buttons, Blue Bottle
Family - Asteraceae
Stems - To 1m tall, tomentose to arachnoid pubescent, herbaceous.
Stem close-up.
Leaves - Alternate. Cauline leaves linear, entire, arachnoid pubescent, to +10cm long, +5mm wide.
Inflorescence - Single flower head terminating branches.
Involucre - Involucre to 1.5cm tall, imbricate, phyllaries with
fimbriate margins.
Involucre.
Ray flowers - Absent.
Disc flowers - Corolla typically
blue-purple but other colors in cultivated varieties, marginal flowers
sterile. inner flowers smaller, fertile. Achenes to 4mm long. Pappus of
capillary bristles.
Disk flowers.
Light pink form.
Flowering - May - September.
Habitat - Prairies, waste ground, roadsides, railroads. Also cultivated.
Origin - Native to Europe.
Other info. - This plant is heavily cultivated and escaped to a variety of locations. The disk flowers can be blue-purple, white, or pink. The plant is commonly used in dried flower arrangements.
Photographs taken at Schumaker Park, 6-16-99 and 7-12-00, and by Tom's Creek, NC., 4-20-03.
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