Agrostemma

{{Short description|Genus of flowering plants in the carnation family Caryophyllaceae}}

{{Distinguish|Argostemma}}

{{Automatic taxobox

| name = Corncockles

| image = Agrostemma gracile.jpg

| taxon = Agrostemma

| authority = L.

| subdivision_ranks = Species

| subdivision = Several, including:

• Agrostemma brachyloba
• Agrostemma githago
• Agrostemma gracile

}}

File:Kornrade2.jpg

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.{{Cite journal |last1=Smakosz |first1=Aleksander |last2=Matkowski |first2=Adam |last3=Nawrot-Hadzik |first3=Izabela |date=2024 |title=Phytochemistry and Biological Activities of Agrostemma Genus—A Review |journal=Plants |language=en |volume=13 |issue=12 |pages=1673 |doi=10.3390/plants13121673|doi-access=free |pmid=38931105 |pmc=11207627 }} The species is a weed of cereals and other crops, probably with a centre of origin in the eastern Mediterranean.Preston, Pearman & Dines. (2002). New Atlas of the British Flora. Oxford University Press. It occurs as a weed worldwide, but is declining in its native range because of improved seed cleaning.{{citation needed|date=June 2021}} Corncockle is an attractive plant, and its seeds are still commercially available to gardeners.