Cardamine trifolia, the trefoil cress, trifoliate bittercress, or three-leaved cuckoo flower, is a species of flowering plant in the family Brassicaceae.

[2][3] It is native to central and southern Europe, and has been introduced to Great Britain.

[1] It appears to have spread from glacial refugia in the Austrian Alps, the western Carpathians, and a part of northern Italy extending into the Dinaric Alps of the former Yugoslavia.

[4] A creeping perennial, in the garden it is recommended as a ground cover in shady areas.

This Brassicales article is a stub.