Leaves up to c. 75 cm long; lamina to 33 by 8.5 cm, sharply distinct from the slender, narrowly grooved, 20-40 cm long petiole. Inflorescence richly branched; floral bracts dark purple, c. 3.5 cm long. Sepals oblong acute, 3-3.2 by 4.5-5.5 cm, purplish, translucent, greenish towards apex. Lateral petals purplish with pale veins, oblong, c. 7 mm long, up to c. 2 mm wide. Labellum creamy coloured with faint purple mottling, especially towards apex, elliptic, c. 21 by 10 mm, apex rounded, basal 3-4 mm with sides upcurved; surface with c. 3 longitudinal folds on either side of a broad median band. Stamens white, up to 5 mm long including the short filaments. Ovary 5-5.5 cm long including the extension; style white, c. 4 mm long; stigma dark violet, c. 2 mm long, with 3 bilobed lobes with a small tooth in each sinus. Capsule 2.5-3 by 1.7 cm, triangular, at apex narrowed to a stiff appendage 15 mm long. Seeds 7 by 5 mm, hairy; aril of c. 6 stiff narrow lobes longer than seed.
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