Habit: terrestrial herbs, semi-epiphytic herbs

Rhizome: retrose or transverse or creeping or ascending, with fibrous roots

Leaf: characteristics: several to many, conduplicate

Leaf: position: basal

Leaf: shape: elliptic, oblong

Petal: spatulate or tapelike

Labellum: with sac or spur or auricles at base, spherical or elliptic or clavate

Column: with 2 fertile stamens, with 1 staminode on top, 1 stigma below

Anther: 2-loculed

Stigma: with papilla

Pollinia: number: 0

Staminode: 1

Fruit:type: capsule