Habit: terrestrial herbs

Tuber: present, palmately lobed, its neck with roots

Stem: with leaves

Leaf: characteristics: sheathing or noding at base, base clasping

Leaf: shape: elliptic

Inflorescence: type: raceme

Inflorescence: position: terminal or subterminal

Flower: other characteristics: resupinate

Sepal: free or similar, concave, lateral sepals spreading or oblique or reflexed or connivent

Petal: shorter or smaller than sepals

Labellum: with sac or spur or auricles at base, 3-lobed, not lobed

Anther: 2-loculed

Stigma: 2

Pollinia: number: 2

Staminode: 2

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

Fruit:type: capsule

Fruit: other characteristics: erect