Habit: terrestrial herbs

Pseudobulb: with leaves, with sheath

Leaf: characteristics: plicate or plicate-venous, petiolate

Inflorescence: type: raceme

Scape: arising laterally on pseudobulb or base of short stem or nodes of rhizome

Flower: other characteristics: pendulous

Sepal: with petals connate into a tube

Labellum: 3-lobed, adnate to column

Column: with wing or triangular-falcate or arm-shaped or subulate appendages, without column foot

Pollinia: number: 4

Pollinia: other characteristics: neither caudicle nor viscidium