Plants 20-45 cm tall. Corms whitish, ovoid or globose, 2-3 cm in diam., 3-4 noded, producing short fleshy roots from node. Leaves long petiolate, ovate-orbicular or broad cordate, 6-15 cm long, 8-18 cm long, rounded and apiculate at apex, cordate at base, palmately nerved, plicate, membranaceous, slightly wavy along margins; petiole 8-16 cm long, sulcate. Peduncle pale green, sometimes marked with purplish lines, 10-25 cm tall, ca. 3 mm in diam., with 2-3 sheaths below, sheaths tubular, greenish, with dark purplish stripes; rachis 8-16 cm long, usually with more than 8 flowers; bracts linear-lanceolate, 1.5-2.5 cm long, 2-3 mm wide, strongly reflexed; pedicel slender, 3-4 mm long; ovary enlarged, ellipsoid, 3-5 mm long, with sharp wavy ridges. Flowers pale green, not opening widely, more or less pendulous; sepals oblanceolate to linear-oblanceolate, 20-25 mm long, 2-4 mm wide, apex acute, lateral ones slightly oblique; petals linear or oblanceolate, 18-24 mm long, 2-2.5 mm wide, acute; lip white or yellowish white, with purplish lines, narrowed and incurved at base, 3-lobed at apex, 15-18 mm long, 8-10 mm wide near middle when expanded, side lobes triangular, 3 mm long, acute, midlobe ovate to ovate-triangular, 6-8 mm long, obtuse, with more or less crisped margins, disc with white hairs especiallyalong veins; column clavate, 6-8 mm long, distinctly dilated at top; anther short cucullate, 1.8-2 mm tall; pollinia clavate, 1.5 mm long; stigma semiorbicular, concave; rostellum short ligulate, obtuse.

HUALIEN: Pulowan, Su s. n. Sep 1993; Hueiyen, Su s. n. Feb 1994. PINGTUNG: Hengchun, Su s. n. May 1971*; Shetin, Su 7878; 9011*.

Widely distributed from Japan, the Ryukyus, China, the Himalaya, India, Indochina, Thailand and the Philippines to Indonesia, Australia and Papua New Guinea. Taiwan, broadleaved forests at low elevations in the central and southern mountains.