Habit: terrestrial herbs

Rhizome: retrose or transverse or creeping or ascending, noded, decumbent

Stem: glabrous, with leaves

Leaf: characteristics: petiolate

Leaf: shape: ovate, orbicular

Inflorescence: type: raceme

Inflorescence: position: terminal or subterminal

Flower: other characteristics: resupinate

Sepal: free or similar, dorsal sepal connivent with petals forming a hood, concave, lateral sepals spreading or oblique or reflexed or connivent

Labellum: 3-partite

Anther: 2-loculed, ovoid

Stigma: 2

Rostellum: 2-lobed or beaked

Pollinia: number: 2

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