Habit: epiphytic herbs

Rhizome: retrose or transverse or creeping or ascending

Stem: branched, unbranched

Pseudobulb: noded, ovoid or elliptic or spindle-shaped or ovate or conical

Leaf: shape: elliptic, oblong

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

Petal: similar to sepals, narrower than sepals or as long as dorsal sepal

Labellum: 3-lobed, divided into epichil and hypochil

Column: with column foot

Pollinia: number: 4