Plants 10-30 cm tall. Tubers narrowly oblong-ellipsoid, 1-1.5 cm. Stem with 1 tubular cataphyll at base, 1-or rarely 2-leaved. Leaf ovate, 3-6 × 2.2-5.5 cm, base cordate, apex subacute. Inflorescence to 28 cm, with 4-9 ovate-lanceolate sterile bracts; rachis to 10 cm, laxly 3-to usually more than 10-flowered; floral bracts ovate-lanceolate, to ca. 9 mm. Flowers purplish red; pedicel and ovary 10-12 mm. Dorsal sepal ovate, cymbiform, 4.5-5.5 × ca. 2.5 mm, apex obtuse; lateral sepals spreading to reflexed, oblong-ovate, oblique, 5-6.5 × ca. 3 mm, apex obtuse or emarginate. Petals erect, triangular-ovate, oblique, subequal in length to lateral sepals, apex subacute; lip ovate to orbicular, 8-10 × 9-11 mm, adaxially papillate-puberulent, basally broadly cuneate, simple, margin irregularly crenulate, apex emarginate; spur often slightly upcurved, conic, 6-7 mm, attenuate toward apex. Column ca. 3 mm; rostellum ovate, ca. 2 mm. Fl. Jul-Aug.
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