Plants 10-30 cm tall. Rhizome coralloid, 1.5-2.5 × 1-1.8 cm, branching. Stem pale brown, with a few membranous sheaths; sheaths amplexicaul, pale brown, 5-9 mm, membranous. Rachis laxly 2-6-flowered; floral bracts narrowly ovate, 6-9 × 2.8-4 mm. Flowers not resupinate, usually pendulous, weakly spreading to widely spreading, yellow, tinged with pink or pale purple; pedicel 3-5 mm; ovary 3-5 mm. Sepals spreading, lanceolate to oblong-lanceolate, 12-18 × 2-3 mm, apex obtuse or acute. Petals similar to sepals, spreading, often slightly wider than sepals, apex acute; lip cordate-ovate when flattened, concave, 6-10 × 6-12 mm, 3-lobed near base; lateral lobes erect, ovate-triangular, 3-3.5 × ca. 3 mm; mid-lobe reflexed, ovate-elliptic, concave, 8-10 × 6-7 mm, lateral mar-gins nearly slightly erose and involute, apex acute; disk with 4-6 longitudinal, purplish red, papillose ridges; spur large and thick, 5-8 × 4-5 mm, apex obtuse. Column 6-7 mm. Fl. Aug-Sep. 2n = 68.
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