Pseudostems erect. Leaves petiolate; leaf blade lanceolate or lanceolate-oblong. Inflorescence a terminal raceme, laxly few flowered; bracts small. Pedicel long, articulate near apex. Calyx tubular-campanulate, split on 1 side, apex 2- or 3-toothed. Corolla tube narrowly cylindric, apex dilated, campanulate; lobes very narrow, apex obtuse, central lobe larger than lateral ones. Lateral staminodes narrowly obovate. Labellum obovate, large, apical margin undulate. Filament short; anther linear, apex with a membranous appendage not derived from connective. Ovary 3-loculed basally, 1-loculed apically. Capsule cylindric, torulose.

One species: China, Vietnam.