Pseudostems 1.5--2 m. Leaves sessile; ligule pale purple, entire, 5--7 cm; leaf blade lanceolate or oblong-lanceolate, 40--70 × 8--9.5 cm, adaxially sparsely hairy along sides of midvein, abaxially sparsely hairy except densely pubescent along sides of midvein, midvein basally enlarged and densely red dotted at sides, base subrounded or cuneate, apex acuminate. Inflorescences arising from rhizomes, ovoid or capitate, 5--7 × 4--4.5 cm; peduncle 2--4 cm; bracts ovate or broadly oblong, 4--4.5 × 2--2.3 cm, inner ones attenuate-deltoid, 3.4--4 cm × 4--5 mm, apex acute; bracteoles red, 3.4--4 cm. Calyx white, 2.5--3 cm, 3-angled, apex 3-toothed. Corolla tube white with red apex, 4--4.3 cm; lobes red, lanceolate, central one 2.5--3 × 1.5--3 cm, lateral ones narrower. Labellum pale brown, black dotted; central lobe ligulelike, 2.8--3.2 × 0.9--1.1 cm; lateral lobes 1.6--1.9 × 1.1--1.3 cm. Anther sessile, white, ca. 1.3 cm; connective appendage ca. 1.4 cm. Ovary pale brown pubescent. Fl. Jul.
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