Vascular Plants - Caryophyllaceae - Agrostemma:
Agrostemma githago
Page Author: David Giblin
common corncockle 
Blooms: June-July
Habit: herb
Duration: annual
Origin: Introduced from Europe
Distribution: Introduced and well established in Washington; also occurring in Oregon, less common in Idaho and Montana.
Habitat: Roadsides and wasteland.
Species Description:

General: White-hairy annual from a taproot, the simple to freely-branched stem up to 10 dm. tall.
Leaves: Leaves all opposite, cauline, linear-lanceolate, 5-12 cm. long and 3-7 mm. wide.
Flowers: Flowers few to several in an open inflorescence, terminal on the main and lateral stems; pedicels stout, 5-15 cm. long; calyx tube 12-16 mm. long, strongly 10-ribbed, the 5 lobes linear to lanceolate, 20-40 mm. long; petals 5, red, twice as long as the calyx tube; stamens 10; styles 5.
Fruits: Capsule about equal to the calyx tube.
Accepted Name:
Agrostemma githago L.
Synonyms:
Lycnhis githago (L.) Scopoli

Treated in Flora of the PNW as:
Agrostemma githago
Additional Resources:

PNW Herbaria Specimens: View list of all Agrostemma githago specimens in the Consortium of Pacific Northwest Herbaria database.

WTU Herbarium Specimens: View list of Agrostemma githago specimens in the WTU Herbarium database.

Washington Flora Checklist: Agrostemma githago treatment.

E-Flora BC: Agrostemma githago atlas page.

CalPhotos: Agrostemma githago images.

USDA Plants Database: Agrostemma githago.
Additional photographs of Agrostemma githago:
(click on a thumbnail to view larger photo)

J. William Thompson

J. William Thompson

Richard Old

Richard Old

Richard Old

Richard Old

Richard Old

Richard Old

Richard Old

Richard Old

Richard Old

Richard Old

Richard Old

Richard Old

Richard Old

Richard Old

Richard Old

Richard Old

Richard Old

Robert L. Carr, 2015

Robert L. Carr, 2015

Robert L. Carr, 2015

Robert L. Carr, 2015

Robert L. Carr, 2015

Robert L. Carr, 2015
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Washington Native Plant Society
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