Habit: terrestrial herbs

Rhizome: retrose or transverse or creeping or ascending

Pseudobulb: with leaves

Leaf: characteristics: 1, plicate or plicate-venous

Inflorescence: type: raceme

Sepal: lateral sepals adnate to column foot or labellum forming a mentum

Petal: similar to sepals, broader than sepals

Labellum: adnate to column, not lobed

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

Pollinia: number: 2

Pollinia: other characteristics: without appendage