Not positive...maybe...Spergula arvensis common name corn spurrey. Quote www...."It is considered an invasive species in some areas." Quote www....."Corn spurrey is a troublesome annual weed occurring on light sandy soils deficient in lime. It is recorded up to 1,500 ft in Britain. Corn spurrey is found mainly on soils with a pH between 5.0 and 6.0. It occurs primarily on arable land, disturbed grassland and waste places. Corn spurrey grows as a summer annual and has been so plentiful as to cause crop failure. It is common in cereals particularly spring barley. There is evidence that it was a weed of flax during the Iron Age."
