What are the relatives of calypso?

Calypso is a genus of orchids in the family Orchidaceae, and its most well-known species is Calypso bulbosa, commonly known as the fairy slipper. Relatives of Calypso include other genera within the subfamily Orchidoideae, such as Cypripedium (lady's slippers) and Epipactis. These orchids share similar habitats and characteristics, often thriving in woodland environments. Additionally, they all exhibit unique floral structures adapted for specific pollinators.