A mouse-ear chickweed, Cerastium arvense, having white flowers and found in grassy or rocky habitats throughout Europe and in parts of North and South America.
Origin
Late 18th century.
Definition of field chickweed in US English:
field chickweed
noun
A mouse-ear chickweed, Cerastium arvense, having white flowers and found in grassy or rocky habitats throughout Europe and in parts of North and South America.