Habit: epiphytic herbs

Pseudobulb: noded, with sheath

Leaf: characteristics: 1, 2, several to many

Inflorescence: type: raceme

Inflorescence: position: terminal or subterminal, laterally on stem

Floral bract: small

Sepal: free or similar, abaxially hairy, lateral sepals adnate to column foot or labellum forming a mentum

Petal: similar to sepals

Labellum: 3-lobed, with longitudinal ridges or keels

Column: with column foot

Anther: 4-loculed

Pollinia: other characteristics: with caudicle or viscidium

Fruit:type: capsule