Plants 20-35 cm tall, slender. Rhizome short. Stem erect or ascending, pale brown, with several to many leaves. Leaves cauline, usually spaced along stem, pale brown, linear, 4-6 × 0.2-0.6 cm, base directly sheathing stem, not stalked, apex acuminate. Inflorescence 4-11 cm, often puberulent above, with many densely arranged flowers; floral bracts lanceolate, 5-10 mm, lower ones exceeding flower, abaxially pubescent, apex acuminate. Flowers resupinate, white, small; ovary and pedicel elliptic-fusiform, 5-7 mm, pubescent. Sepals puberulent on outer surface; dorsal sepal oblong-lanceolate, concave, ca. 6 × 3 mm, 1-veined, apex acute; lateral sepals oblong, ca. 5.5 × 2.5 mm, apex acute. Petals oblong-ovate, 4-5 × ca. 2.2 mm, glabrous, 1-veined, apex acute; lip white, cymbiform, 4-5 mm, 3-partite; hypochile concave-saccate, containing 2 calli; mesochile short; epichile transversely oblong, ca. 1.2 × 2.5 mm, apex with a small mucro. Column ca. 2 mm. Capsule pale brown, elliptic, ca. 7 mm. Fl. Nov-Jan.
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