- calypso, fairy-slipper, Calypso bulbosa - rare north temperate bog orchid bearing a solitary white to pink flower marked with purple at the tip of an erect reddish stalk above 1 basal leaf
--1 is a kind of orchid, orchidaceous plant
- Calypso - (Greek mythology) the sea nymph who detained Odysseus for seven years
--2 is a kind of sea nymph