Habit: terrestrial herbs

Rhizome: retrose or transverse or creeping or ascending, noded

Stem: glabrous, leafy

Leaf: characteristics: petiolate

Leaf: shape: ovate, lanceolate

Inflorescence: type: raceme

Floral bract: pubescent or ciliate or notched at margin

Inflorescence: other characteristics: peduncle hairy

Flower: other characteristics: resupinate

Sepal: with petals connate into a tube

Petal: adnate to dorsal sepal forming a hood

Labellum: T-shaped or Y-shaped

Rostellum: 2-lobed or beaked

Pollinia: number: 2

Pollinia: shape: obovate

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