Any member of several genera of orchids in which the lip of the flower is slipper-shaped.
The genus Cypripedium has about 50 temperate and subtropical species. Two well-known species, the yellow lady's slipper ( C. calceolus ) and the pink lady's slipper, or moccasin flower ( C. acaule ), are found in temperate coniferous woods in early spring. Other genera include Phragmipedium and Selenipedium of the New World tropics, and the tropical Asian Paphiopedilum . Many hybrids have been developed.
Lady's slipper ( Cypripedium )
Grant Heilman