Plants erect. Stems ca. 2 cm, base with many roots to 50 cm. Leaves many; blade terete, 12-28 cm × 2-2.5 mm, fleshy, acuminate. Inflorescence ascending, 5-10 cm, 2-10-flowered; peduncle with several ovate sheaths; rachis soft, slender; floral bracts persistent, ovate, ca. 1 cm. Flowers opening widely, ca. 3 cm in diam., sepals and petals white, lip with yellowish callus at base; pedicel and ovary 2.5-3.5 mm. Dorsal sepal subelliptic, ca. 12 × 7 mm, obtuse; lateral lobes slightly oblique, oblong, ca. 12 × 7 mm, dorsally carinate, apex obtuse. Petals subovate-elliptic, ca. 10 × 5.5 mm, obtuse-rounded; lip spurred, 3-lobed; lateral lobes erect, subobovate, slightly unequally bilobulate; mid-lobe ovate, 11-12 × ca. 7 mm, with 2 or 3 small crested basal appendages, margin ± undulate, apex rounded; spur bent forward, nearly cylindric, ca. 8 × 2 mm, narrowed toward tip, acute. Column ca. 5 mm, slightly enlarged toward apex. Fl. Jun. 2n = 38*.
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