Habit: terrestrial herbs

Pseudobulb: with roots, ovoid or elliptic or spindle-shaped or ovate or conical, with internode, with sheath

Leaf: characteristics: plicate or plicate-venous, sheathing or noding at base, petiolate

Inflorescence: type: raceme

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

Sepal: with petals connate into a tube, lateral sepals adnate to column foot or labellum forming a mentum, lateral sepals spreading or oblique or reflexed or connivent

Petal: narrower than sepals or as long as dorsal sepal

Labellum: 3-lobed, adnate to column

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

Pollinia: number: 8