Lady’s-Slipper (Whippoorwill’s-shoe)

 Any of various orchids of the subfamily Cypripedioideae and especially the genus Cypripedium, having showy flowers with the lip modified into a slipperlike pouch. Alsocalled moccasin flower. Cypripedioideae includes the genera Cypripedium, Mexipedium, Paphiopedilum, Phragmipedium and Selenipedium.