Pseudostems 0.6--2 m. Leaves usually 3; ligule glabrous; petiole 4.5--7 cm; leaf blade 20--55 × 7--14 cm, base acute, apex acuminate. Racemes 13--14 cm, 9--12-flowered; peduncle ca. 18 cm. Pedicel articulate ca. 5 mm from apex. Calyx ca. 3.5 cm. Corolla yellowish white; tube ca. 2 cm; lobes 2.5--3 cm. Lateral staminodes ca. 2.5 cm. Labellum variegated, 3--3.5 cm. Anther including apical appendage ca. 2 cm. Ovary glabrous. Stigma ciliate. Capsule yellow, 12--13 × ca. 1 cm. Fl. Oct. 2 n = 48.

Dense forests in mountain valleys; ca. 800 m. SE Yunnan (Pingbian Miao Zu Zizhixian) [N Vietnam].