Pseudostems ca. 2 m. Leaves subsessile; ligule ca. 1 cm, yellow villous; leaf blade lanceolate, ca. 60 × 16 cm, abaxially sericeous-velvety, base attenuate, apex acute. Racemes erect, 25 cm or more; rachis very stout, golden yellow, sericeous-velvety; bracteoles reddish, broadly elliptic, 4--5 × ca. 7.5 cm, glabrous, apex obtuse. Pedicel very short. Calyx 3--3.7 cm, split nearly to base on 1 side, apex 3-lobed, lobes subequal. Corolla white; tube short and wide, ca. 5 mm, sericeous-villous; lobes broadly elliptic, 3.5--4 cm. Lateral staminodes hooklike, ca. 7 mm. Labellum yellow tinged with red, obovate, 4.5--7 × 8--9 cm, base with very densely sericeous scab, apex 2-cleft. Filament ca. 1.5 cm, base villous; anther elliptic, ca. 1.7 cm. Ovary broadly ellipsoid, sericeous-villous.

* Wet areas in forests; 800--1600 m. S Yunnan.