Pseudostems 50--90 cm, base with purple sheaths. Leaf sheath green, glabrous; ligule 2-lobed, glabrous; petiole 1--1.7 cm; leaf blade elliptic, 10--18 × 5.6--7 cm, adaxially glabrous, abaxially sparsely villous, base cuneate, apex acuminate. Inflorescences arising from rhizomes, capitate, 1.8--3 × 1.8--2.5 cm; peduncle embedded in ground, 2--7 cm; bracts lanceolate, 3--3.2 × ca. 1.1 cm; bracteoles densely red spotted, tubular, ca. 2.8 cm. Calyx white, ca. 1.4 cm, glabrous, apex emarginate. Corolla yellow, glabrous; tube ca. 2.6 cm; lobes ovate, central one ca. 2.1 cm × 8 mm, apex acuminate; lateral lobes ca. 1.7 cm × 6 mm, apex acute. Labellum purple with white dots, base white; central lobe oblong, ca. 1 cm × 2 mm; lateral lobes linear, ca. 1 cm × 2 mm. Stamen purple; filament ca. 2 mm; anther ca. 9 mm; connective appendage ca. 4 mm. Ovary pale green, glabrous. Capsule purple, ovoid, ca. 2.3 × 1.2 cm, 3-angled. fl. Sep.
Home