Cypripedioideae: 5 genera and 130 species, from the temperate regions of the world, as well as tropical America and tropical Asia
Vanilloideae: 15 genera and 180 species, humid tropical and subtropical regions, eastern North America
Epidendroideae: more than 500 genera and more or less 20,000 species, cosmopolitan
Orchidoideae: 208 genera and 3,630 species, cosmopolitan