Pseudostems to 50 cm. Ligule ca. 4 mm, membranous, apex obtuse; petiole ca. 5 mm; leaf blade oblong, 15--17 × ca. 4 cm, glabrous, base attenuate, apex acuminate. Spikes ca. 10 × 2 cm, dense; rachis glabrous; bracts ovate-oblong, 5--6 mm. Flowers golden yellow. Calyx ca. 6 mm, obliquely split on 1 side. Corolla tube ca. 8 mm; lobes linear, ca. 7 × 1 mm. Lateral staminodes wider than corolla lobes. Labellum obovate, ca. 5 × 3 mm, apex entire but mucronate. Stamen orange; filament ca. 7 mm; anther ca. 3 mm. Ovary glabrous, subcubic, ca. 1 mm in diam. Stigma ciliate. Fl. Jul.