![](https://images.ctfassets.net/l2hapltrg3cz/4B0XtcMXsHBQmouD40GEO3/df51e49bfbb263c2428d209b996ba510/corncockle_01.jpg?fm=webp&w=1080&q=85)
Corncockle
Agrostemma githago
Importance
All parts of the plant, including the seeds, contain toxins which can be harmful (especially to livestock) if eaten in large quantities or ingested over a long period of time.
Becoming increasingly rare but widely sown in wild-flower mixtures in fields and margins.
![](https://images.ctfassets.net/l2hapltrg3cz/1TxUjTymjG2HNOJIqcFyxT/fdf8476400893ead7f14f9d059e515e0/corncockle_01.jpg?fm=webp&w=1920&q=85)
1. Primarily autumn-germinating with large coarse cotyledons approx. 30 mm long and 10 mm wide. Narrow linear leaves with grey hairs lying along the leaves. Upper leaves stalkless (sessile). Copyright.
![](https://images.ctfassets.net/l2hapltrg3cz/2TRo5TKNYuWLx8BkeCdhuH/b807d022daaf971fe6bd453f068fca7a/corn_cockle_b8001381.jpg?fm=webp&w=1920&q=85)
2. Large terminal purple-red flowers on long peduncles with long, slim, pointed sepals.
![](https://images.ctfassets.net/l2hapltrg3cz/1h0qvud54Zy9GzLekPOd5R/677728ff5c36c4492f44e69e75b97e83/FieldMate_Promo_Mobile.jpg?fm=webp&w=3840&q=85)
![](https://images.ctfassets.net/l2hapltrg3cz/3CvKagUshwoSyxEDqRj52c/bd6e3be09e808d22cf4c4c324b6d4ac7/FieldMate_Promo_Desktop.jpg?fm=webp&w=3840&q=85)
![](https://images.ctfassets.net/l2hapltrg3cz/3CvKagUshwoSyxEDqRj52c/bd6e3be09e808d22cf4c4c324b6d4ac7/FieldMate_Promo_Desktop.jpg?fm=webp&w=3840&q=85)