Rhizomes and roots tuberous. Leaves not seen. Inflorescences on separate shoots arising from rhizomes, appearing before pseudostems, 6--8-flowered; bracts white, elliptic, 5--7 cm, apex tinged with red. Calyx ca. 2.5 cm, apex 3-toothed. Corolla tube ca. 2 × as long as calyx; lobes lanceolate, ca. 2.5 cm, central one cucullate, apex apiculate. Lateral staminodes erect, white, yellow at base, obovate, ca. 3.5 cm. Labellum reflexed, white, with 2 yellow lines at center, orbicular-cuneate, ca. 4 cm, apically 2-lobed for ca. 1/3 its length. Anther connective appendage 2-cleft. Fl. May. 2 n = 22.

Mountains; ca. 1100 m. SW Yunnan (Lancang Lahu Zu Zizhixian) [Cambodia, Myanmar].