Several, including: Agrostemma is a genus of annual plants in the family Caryophyllaceae, containing the species known as corncockles.

Its best-known member is A. githago, the common corncockle, which is a native of Europe.

[1] The species is a weed of cereals and other crops, probably with a centre of origin in the eastern Mediterranean.

[2] It occurs as a weed worldwide, but is declining in its native range because of improved seed cleaning.

[citation needed] Corncockle is an attractive plant, and its seeds are still commercially available to gardeners.