Plants suberect or pendulous, about 15-50 cm long. Stems nearly tufted, frequently branching, with many nodes, internodes terete, clavate or cylindrical, 1-4 cm long, 2-5 mm in diam., branches narrowed at base, slightly dilated upwards, terminal internode enlarged, forming pseudobulb. Pseudobulbs greenish, lustrous, flattened, elongate fusiform, 3-6 cm long, 1-1.8 cm wide, initially covered by membranaceous sheaths. Leaves, articulate, oblong, ovate-oblong or lanceolate, 4-10 cm long, 1.5-3 cm wide, acute at apex, obtuse at base, coriaceous, rigid, lower surface more or less decorated with rusty dots toward base. Inflorescence terminal on pseudobulb, near abaxial side of leaf, usually with one flower subtended by a series of bracts; bracts scarious, ovate-lanceolate, 3-5 mm long, acute; pedicel and ovary 8-12 mm long. Flowers not widely opening, nearly actinomorphic, white or pale greenish white; sepals ovate, 4-6 mm long, 2-3.3 mm wide, acute, 5-nerved, slightly keeled and rusty punctate outside; petals rhombic-ovate or sometimes ovate-lanceolate, 4-5 mm long, 2-3 mm wide, acute, 3-5-nerved; lip similar to petals, rhombic-ovate or elongate ovate, 4-4.5 mm long, 2-2.5 mm wide, disc without any keel or appendage; column inconspicuous, nearly reduced, about 1 mm tall, consisting of 3 triangular acute lobes surrounding anther; anther operculate, ovoid, 1.5 mm long, 2-celled, with truncate and denticulate front margin; pollinia, ellipsoid to cylindrical, 1.2 mm long. Capsules fusiform, about 2 cm long.

HUALIEN: Mystery Valley, Su 9194; Long-spring Temple, Chen s. n. 28 Sep 1979; Taroko, Lin 457.

Endemic, broadleaved forests up to 1,000 m eastern coasts of Taiwan.