Plants 15-20 cm tall. Corms whitish, globose to ellipsoid, 1-2 cm across, with 2-3 nodes. Leaves short petiolate, orbicular-cordate, 4-6 cm across, rounded and short apiculate at apex, cordate at base, slightly wavy or nearly entire along margins, sometimes irregularly denticulate microscopically; upper surface pale green to dark green, often decorated with pale yellow patches, setulose, seta transparent and appearing whitish, sparse between veins, dense on veins; lower surfaces purplish, especially along veins; petiole 1.5-2.5 cm long. Peduncle pale green, sometimes tinged purple, 8-15 cm tall, ca. 2 mm in diam., with 2 sheaths below, sheaths lanceolate, 2-3 cm long; racemes usually with 2 flowers; bracts lanceolate, 5 mm long, 1.5 mm wide; pedicel slender, 4-7 mm long; ovary enlarged, 3-6 mm long. Flowers greenish brown, with purple veins, perianth widely spreading; sepals spatulate, 15-20 mm long, 2.5-4 mm wide, apex acute, lateral ones slightly oblique and keeled dorsally toward apex; petals linear-oblanceolate, 14-18 mm long, 2-3 mm wide, acute; lip light purple on upper surface, with dark purple hue near middle veins, whitish on lower surface, rhombic-ovate, obscurely 3-lobed or nearly unlobed, 13-15 mm long, 11-13 mm wide when expanded, lateral sides or sidelobes erect and embracing column, apex or midlobe spreading, obtuse, often with longitudinal plica near tip; column white, clavate, 7 mm long, distinctly dilated at apex; anther white, short cucullate, 2 mm tall; pollinia clavate, 1.2 mm long; stigma rectangular, concave; rostellum nearly rectangular, truncate at apex.

KAOHSIUNG: Meinung, Su 8307. PINGTUNG: Sheting, Su 7877*; Chineuling, Su & Chen 7886.

Southern China, Thailand, Loas, Myanmar, Sikkim, India, the Philippines, Malaysia, Papua New Guinea and Australia. Taiwan, semideciduous forests in the southwestern lowlands and western side of the Hengchun peninsula.