Plants (10--)25--50(--60) cm tall. Bladeless leaves 2 or 3, marked pinkish brown. Normal leaves 3 or 4; ligule pinkish brown, 1--2 mm; leaf blade oblong, elliptic, or lanceolate, 9--2.2 × 1.5--4 cm, abaxially glabrous or pubescent, base narrowed and petiolelike, apex acute to acuminate. Inflorescence sometimes with peduncle shortly exserted from leaf sheaths; bracts lanceolate, 3.5--5.5 cm apex obtuse. Flowers 1--3 opening together, purple, red, or white. Calyx 2.7--3.5 cm, apex 2-toothed. Corolla tube 3.5--7.5 cm; central lobe elliptic to narrowly so, 2.2--3.5 cm, apex strongly apiculate; lateral lobes elliptic to linear-oblong, 2.2--3.5 cm. Lateral staminodes obliquely oblanceolate, ca. 2.5 cm, clawed. Labellum slightly reflexed, with white lines at throat, obovate, 2.3--3.5 × 1.4--3 cm including 5--6 mm claw, apex narrowly 2-lobed. Anther curved, locules 6--9 mm; connective spur 7--9 mm. Ovary 1--1.5 cm. Fl. Jun--Aug.
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