Habit: saprophytic herbs

Rhizome: with tufted roots, with fleshy roots

Stem: hairy, sheathing below middle, without leaf

Inflorescence: type: raceme

Inflorescence: position: terminal or subterminal

Inflorescence: other characteristics: rachis pubescent or zigzagged flexuose or winged

Flower: other characteristics: resupinate, actinomorphic, spreading

Sepal: free or similar, abaxially hairy

Petal: 2-lobed at apex

Labellum: absent

Rostellum: absent

Pollinia: number: 2

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