They are native to Africa, Madagascar, Southeast Asia, Australia and various islands of the Pacific.

Orchids in the genus Didymoplexis are small, leafless, terrestrial, mycotrophic herbs with a swollen, fleshy rhizome.

The sepals and petals are joined at the base to form a short, bell-shaped tube with the tips spreading widely.

[2][3][4][5][6] The genus Didymoplexis was first formally described in 1843 by William Griffith and the description was published in the Calcutta Journal of Natural History.

[6] The following is a list of species of Didymoplexis recognised by the World Checklist of Selected Plant Families as at October 2018:[1] Crystal orchids grow in grassy forest, bamboo thickets and rainforest in India, southern China and Indochina to southern Japan and the Philippines, throughout the Malay Archipelago to New Guinea, Christmas Island, tropical Australia, and the southwest Pacific islands.