Welw. ex Baker, Trans. Linn. Soc. London, Bot. 1: 261 (1878)
Tuber depressed-globose, interior white. Old leaf sheaths short and bristly at the base, inner longer and more membranous. Contemporary leaf sheath about 40 mm long merging into the lamina; lamina falcate, 220 mm long. Peduncle about 100 mm long. Raceme up to 170 mm long and 50 mm wide, with 18-30 flowers. Pedicels up to 60 mm long. Bracts boat-shaped, attenuate, 1.5 mm long. Tepals 5 mm long.