Habit: terrestrial herbs

Pseudobulb: with roots, corm-shaped or subtuberous or tubular

Leaf: characteristics: 1, petiolate

Leaf: shape: ovate

Scape: on pseudobulb apex

Sepal: free or similar

Petal: similar to sepals, free

Labellum: with sac or spur or auricles at base, 3-lobed

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

Pollinia: number: 4

Pollinia: other characteristics: with caudicle or viscidium