Pseudostems ca. 80 cm. Leaves sessile; leaf sheath 2--7 cm; ligule entire, 8--10 mm, membranous; leaf blade linear, ca. 30 × 3 cm, glabrescent, base attenuate, apex caudate. Inflorescences arising from rhizomes, fusiform, 8--12 × ca. 2.5 cm; peduncle 15--30 cm; bracts purple, rhombic, 3--4 × 1.5--2.5 cm, margin membranous, apex obtuse-acuminate. Calyx 2.5--2.8 cm, pubescent. Corolla tube 3--4 cm; lobes with brown stripe, lanceolate, ca. 2 cm. Labellum with brown stripe, ca. 2 cm. Anther sessile, ca. 1.3 cm; connective appendage incurved, ca. 7 mm. Ovary hirsute. Fl. Apr.
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