Pseudostems 1--1.2 m, base with red sheaths. Leaf sheath longitudinally striate, white pubescent; ligule 2-lobed, 1.5--2.4 cm, hairy; petiole reddish adaxially, ca. 5 mm; leaf blade elliptic or lanceolate-elliptic, 25--45 × 9--11 cm, abaxially pubescent, midvein elevated adaxially when dry, base attenuate, apex acuminate or shortly so. Inflorescences arising from rhizomes, oblong, 5--6 × 2.4--3 cm; peduncle 2--6 cm; outer bracts ovate or oblong, 3.5--5.5 × 2--2.5 cm, inner bracts narrowly lanceolate, 4--4.5 × 0.7--1 cm, pubescent; bracteoles red at margin, narrowly triangular, equaling bracts. Calyx 1.6--2 cm, pubescent, apex minutely 2-toothed. Corolla tube 3--3.3 cm, densely pubescent; lobes red, lanceolate, 2.2--2.5 cm × 4--6 mm, glabrous. Labellum orange, oblong, 1.8--2 × 0.9--1 cm, apex entire; lateral lobes absent. Filament very short; anther white, ca. 1.6 cm; connective appendage orange, ca. 9 mm. Ovary densely brown pubescent. Fl. Aug.
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