Habit: saprophytic herbs

Rhizome: cylindrical

Stem: branched, unbranched, without leaf, with scalelike sheath or roots

Inflorescence: type: raceme

Inflorescence: position: terminal or subterminal

Floral bract: membranous

Flower: other characteristics: resupinate

Sepal: free or similar

Petal: similar to sepals, free

Labellum: 3-lobed, adnate to column, not lobed

Anther: 2-loculed

Pollinia: number: 2

Pollinia: other characteristics: granular-farinaceous, neither caudicle nor viscidium