Plants 30-37 cm tall. Stem 4-or 5-leaved. Leaves scattered along stem, elliptic to oblong-ovate, oblique, 6-7 × 2.5-3.5 cm, base obtuse-rounded, apex acute; petiole-like base and sheath 2-2.5 cm. Inflorescence 18-23 cm, pubescent, with 4 or 5 sterile bracts; rachis 8-11 cm, with many densely arranged flowers; floral bracts lanceolate, 6-7 mm, shorter than ovary, abaxially puberulent, apex acuminate. Flowers small; ovary subcylindric, not twisted, 8-9 mm including pedicel, pubescent. Sepals 3-veined, outer surface pubescent; dorsal sepal ovate, concave, ca. 5.8 × 3 mm, apex obtuse; lateral sepals ovate-oblong, ca. 5.5 × 2.1 mm, apex obtuse. Petals white, obliquely subspatulate, ca. 5 × 1.6 mm, glabrous, 1-veined, apex obtuse; lip white, suboblong, cymbiform, ca. 4.5 × 2 mm; hypochile concave, 3-veined, lateral veins each with 1 or 2 suboblong, lamellate, toothed calli toward base; epichile a narrow, sublinear blade, ca. 1.8 mm, lateral margin involute. Column 2.5-3 mm; wings shallow, broad; rostellum arms linear, ca. 1.2 mm. Fl. Mar.
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