Habit: terrestrial herbs, semi-epiphytic herbs

Rhizome: retrose or transverse or creeping or ascending, noded

Stem: with leaves

Leaf: characteristics: petiolate

Leaf: shape: ovate, cordate

Inflorescence: type: raceme

Inflorescence: position: terminal or subterminal

Inflorescence: other characteristics: peduncle hairy, peduncle glabrous

Flower: other characteristics: resupinate

Sepal: with petals connate into a tube

Petal: adnate to dorsal sepal forming a hood

Labellum: 3-partite

Column: with wing or triangular-falcate or arm-shaped or subulate appendages

Stigma: convex

Rostellum: 2-lobed or beaked

Pollinia: number: 2

Pollinia: other characteristics: granular-farinaceous, 2-parted, with caudicle or viscidium