Gastrodieae genera

Gastrodia, commonly known as potato orchids, is a genus of terrestrial leafless orchids in the family Orchidaceae, about ninety of which have been described. Orchids in this genus have fleshy, upright stems and small to medium-sized resupinate flowers with narrow sepals and petals. They are native to Asia (China, the Russian Far East, Japan, Korea, Southeast Asia, the Indian subcontinent), Australia, New Zealand, central Africa, and various islands of the Indian and Pacific Oceans.

Auxopus is a genus of the family Orchidaceae. It belongs to the tribe Gastrodieae.

Didymoplexis, commonly known as crystal orchids (Chinese: , romanised: ), is a genus of terrestrial leafless orchids in the family Orchidaceae, about twenty species of which have been described. Orchids in this genus have swollen, fleshy rhizomes and thin, pale, upright fleshy flowering stems with resupinate, bell-shaped white or pale yellowish brown flowers. They are native to Africa, Madagascar, Southeast Asia, Australia and various islands of the Pacific.

Didymoplexiella is a genus of flowering plants from the orchid family, Orchidaceae. It contains 8 known species native to Southeast Asia, with a few species extending northwards into Japan and southern China. These are mycoheterotrophic plants lacking chlorophyll, obtaining nutrients from fungi in the soil.

Uleiorchis is a genus of myco-heterotrophic flowering plants from the orchid family, Orchidaceae. There are two known species, native to Central and South America.