Note:  Do not rely on this information. It is very old.

Cuckoo Flower

Cuckoo Flower, a popular name applied to various flowers that appear in spring about the same time as the cuckoo. The chief of them are Cardamine pratensis, also known as Ladies'-smocks, Lychnis Flos-cuculi, now better known as Ragged Robin, and Stellaria Holostea the greater stitchwort.