Tufty epiphyte on old branches and rockwalls, 30-50cm high. Stems slightlycompressed, sulcate, pale-yellow when dry. Leaves altemate, thick, coriaceous,truncate at the apex. Inflorescence in axillary raceme of 2 - 4 pink flowers. Capsulerhombiform, longitudinally dehiscent when dry; seeds numerous (Vietnam)