Cryptomeria is a monotypic genus of conifer in the cypress family Cupressaceae, formerly belonging to the family Taxodiaceae. It includes only one species, Cryptomeria japonica (syn. Cupressus japonica L.f.). It is endemic to Japan, where it is known as Sugi (Japanese: 杉). The tree is often called Japanese cedar in English, though the tree is not related to the true cedars (Cedrus).