Gastrodia R.Br., Prodr. (1810) 330
- Genus Epiphanes Blume, Bijdr. (1825) 421
- Genus Gamoplexis Falc., Proc. Linn. Soc. London 1 (1847) 320
- Genus Neoclemensia Carr, Gard. Bull. Straits Settlem. 8 (1935) 180
Leafless terrestrial plants lacking chlorophyll. Inflorescence arising from an underground tuber-like rhizome, a few- to many-flowered raceme or carrying a single flower. Flowers small to medium-sized, not resupinate. Sepals and petals all mutually connate, but the lateral sepals sometimes only connate at the base. Petals usually much smaller than the dorsal sepal. Lip without spur, not mobile. Column-foot present, stigma situated at the base of the column. Pollinia 2, grooved, sectile; caudicles, stipe, and viscidium absent.
Species present in New Guinea: