Plants 15-80 cm tall. Rhizome usually dorsiventrally compressed, subglobose to ovoid, 1-2 cm in diam. Stem 5-15 cm, enclosed by several tubular sheaths, 2-8-leaved. Leaves widely spaced along stem, linear-lanceolate to narrowly oblong, 6-40 × 0.5-1.5(-4.5) cm, base contracted into amplexicaul sheath, apex acuminate. Peduncle 20-60 cm, slender, usually with 1 short sheathing bract; rachis to 10 cm, flexuous, simple or occasionally branched, (1 or)2-6-flowered; floral bracts deciduous at anthesis, oblong-lanceolate, 10-13 mm, apex acuminate. Flowers erect or spreading, pale purple or pink, rarely white; pedicel and ovary twisted, 8-12 mm. Sepals pale purple or pink, rarely white, lanceolate to narrowly oblong, 15-21 × 4-6.5 mm, lateral ones slightly oblique, apex subacute. Petals similar to sepals but slightly narrower, oblique, pale purple or pink, rarely white; lip whitish to pale yellow with small dark purple spots and broken lines, broadly elliptic, 15-18 × 8-9 mm, 3-lobed above middle; lateral lobes erect and embracing column, obliquely suborbicular, apex acute; mid-lobe suborbicular to square, 4-5 × 4-5 mm, margin slightly crisped, apex obtuse-truncate or rarely slightly emarginate; disk with 5 undulate lamellae extending from base of lip almost to apex of mid-lobe. Column subterete, 12-13 mm, slender, dilated toward apex, with narrow wings; rostellum broadly suborbicular. Capsule to ca. 2.5 cm. Fl. Apr-Jun. 2n = 16, 32, 36.
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