Selenipedium is a genus of the Orchid family (Orchidaceae) (Subfamily Cypripedioideae). The genus has been given its own tribe, Selenipedieae, and subtribe, Selenipediinae. It is abbreviated Sel in trade journals. The name of the genus is derived from the Greek selen, which means "moon", and pedium, which means "slipper" (referring to the pouch). There are only six true selenipedium species known ():