Pseudostems 17--25 cm. Ligule 2-lobed, ca. 5 mm; petiole 0.5--2 cm; leaf blade oblong or oblong-lanceolate, 7--16 × 3--5 cm, glabrous, base cordate with basal lobes close together, apex caudate. Spikes 5--7 cm; bracts lanceolate, 1.5--2 cm; bracteoles linear, ca. 5 mm. Calyx yellow with red spots, clavate, ca. 7 mm. Corolla tube yellow, ca. 1.2 cm, abaxially pubescent; lobes ovate-lanceolate, ca. 8 mm. Labellum erect, narrowly spatulate, 8--9 mm. Filament 1.5--2.5 cm; anther ca. 5 mm. Ovary ellipsoid, ca. 4 mm, villous. Capsule ellipsoid, 8--9 × ca. 6 mm, hirsute. Fl. Jun--Aug.
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