Stems 5-20 cm, ca. 2.5 cm in diam., stout. Leaf blade narrowly oblong or lorate, 28-30 × 2-3.5 cm, fleshy, obtuse and unequally bilobed. Inflorescences often 1-3, arising from peduncle sheath, pendulous, racemose or paniculate, 15-35 cm, densely 20-40-flowered; floral bracts ovate-lanceolate, 5-7 mm. Flowers white, spotted or tinged with purplish red, particularly on lip, opening widely; pedicel and ovary 12-14 mm. Dorsal sepal subobovate, ca. 12 × 7 mm, base contracted, apex obtuse; lateral sepals slightly oblique, ovate, ca. 8 × 7 mm, obtuse. Petals obovate, ca. 10 × 7 mm, obtuse; lip deltoid to trullate, slightly laterally compressed, 1.4-1.6 × 0.8-1.1 cm, immovable, 3-lobed, apex acute; lateral lobes small, incurved over mouth of spur; mid-lobe hastate, triangular-acute, margin slightly irregularly denticulate, base with a linear appendage running into spur; appendage hooked tipped, minutely papillate; spur spreading horizontally, parallel to mid-lobe, narrowly conic, ca. 5 mm. Column ca. 5 mm, foot ca. 1 mm. Capsule subovoid, ca. 2 × 1.2 cm. Fl. Jul, fr. Aug-Oct. 2n = 38.
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