lady's-slipper

noun

1. any orchid of the genus Cypripedium, the flowers of which have a protruding petal somewhat resembling a slipper: all species are reduced in numbers, some greatly.
2. any of several other related plants having similar flowers, as of the genera Paphiopedilum and Phragmipedium.

noun

1. any of various orchids of the Eurasian genus Cypripedium, esp C. calceolus, having reddish or purple flowersSee also moccasin flower, cypripedium