The Collaborative International Dictionary
Cardamine pratensis
Lady's smock \La"dy's smock"\n. (Bot.) A plant of the genus Cardamine ( Cardamine pratensis); cuckoo flower.
Cardamine pratensis
Cuckooflower \Cuck"oo*flow`er\ (-flou`?r), n. (Bot.) A species of Cardamine ( Cardamine pratensis), or lady's smock. Its leaves are used in salads. Also, the ragged robin ( Lychnis Flos-cuculi).
Wikipedia
Cardamine pratensis
Cardamine pratensis (cuckooflower or lady's smock), is a flowering plant in the family Brassicaceae, native throughout most of Europe and Western Asia. The specific name pratensis is Latin for "meadow."