Plants ca. 2 m tall. Leaves sessile; leaf sheath purple-red; ligule light purple, entire, ca. 4 cm, fragile; leaf blade lanceolate or narrowly so, 55--80 × 5--9 cm, glabrous, base cuneate or narrowly so, apex acuminate or caudate-acuminate. Spikes narrowly ellipsoid, 7--8 × 2.8--3.2 cm; peduncle 2.5--10 cm; bracts elliptic, 3.5--5 × 2--3 cm; bracteoles narrowly lanceolate, ca. 4.5 cm × 7 mm, plicate. Calyx purple-red spotted, ca. 3 cm, pubescent, apex 3-toothed. Corolla tube white, ca. 2.5 cm; lobes narrowly elliptic, ca. 3 cm. Lateral staminodes ca. 2 mm. Labellum ovate, ca. 3.5 × 2.3 cm, margin crisped, apex entire. Filament ca. 5 mm; anther linear, ca. 1.2 cm; connective appendage entire, ca. 4 mm × 1 cm. Ovary brownish, densely white pubescent. Capsule narrowly oblong, winged, densely pubescent. Fl. Jun.

* Forests. SW Yunnan (Menghai Xian).