Rhizomes with fibrous roots bearing globose tubers. Leaves 2--4; petiole to 10 cm; leaf blade adaxially green, abaxially pale green, oblong or elliptic, 13--15 × 5--8 cm, base rounded, apex acute. Inflorescences terminal on pseudostems, several flowered; peduncle short; bracts green, oblong-lanceolate, ca. 5 cm. Flowers pale purple. Calyx ca. 2.5 cm. Corolla tube slender, ca. 5 cm; lobes lanceolate, 1.7--2 cm. Lateral staminodes obovate-cuneate, ca. 1.2 cm. Labellum apically 2-cleft to base; lobes obovate, 2--2.5 cm. Filament very short; anther ca. 3 mm; connective appendage suborbicular, entire, ca. 6 mm in diam. 2 n = 22*.
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