Leaves and peduncular-sheath not seen. Peduncle 14–18 in. high, about 1/2 lin. thick, distinctly 4–6-angled, hollow, glabrous. Spike 3–4 lin. long, 2 1/2–3 lin. thick, ellipsoid, about 10-flowered. Bracts 2–2 1/2 lin. long, 1 1/2 lin. broad, elliptic, very obtuse, not keeled, concave, glabrous, rather light brown with a distinct greyish lanceolate or lanceolate-oblong dorsal area; nerves numerous, much reticulated. Lateral sepals 2 1/2 lin. long, 1/4– 1/3 lin. broad, falcate-linear, acute, keeled, brown, paler towards the margins; keel not produced at the apex, serrulate along the apical half, with the teeth often ending in a fine hair. Corolla not seen.