Plants terrestrial, 18-30 cm tall. Rhizome slender. Stem ascending, 4-8 cm, 3-5-leaved. Leaves clustered toward apex of stem, abaxially pale green, adaxially deep green with white or pale green venation and markings, ovate-elliptic, 4.5-6 × 1.5-3 cm, base cuneate, apex acute; petiole-like base and tubular sheath 1-2 cm. Peduncle pale grayish green, 7-10 cm, pubescent, with 2 or 3 sterile bracts; rachis 8-10 cm, laxly to subdensely 7-12-flowered, subsecund; floral bracts ovate-lanceolate, ca. 13 × 4 mm, apex acuminate. Flowers barely opening, white, sometimes tinged green, medium-sized; pedicel and ovary cylindric-fusiform, 12-14 mm, pubescent. Sepals pubescent on outer surface, 1-veined; dorsal sepal oblong-lanceolate, 11-14 × 3-4.3 mm, concave, apex acute; lateral sepals oblong-lanceolate, oblique, 11-14 × 3-4.3 mm, apex acute. Petals white with a green blotch at apex, narrowly rhombic-spatulate, oblique, ca. 11 × 3.5 mm, 1-veined, apex subacute; lip ovate-lanceolate, ca. 10 × 3.8 mm; hypochile concave-saccate, inside papillose; epichile lanceolate, ca. 6 mm, with 2 erose lamellae, carinate abaxially, apex subacute, slightly recurved. Column ca. 4 mm; anther narrowly ovoid, ca. 4 mm; rostellum ca. 3 mm, remnant deeply bifid. Fl. May-Jun.
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