Leaves 3–6 in. long, 1 lin. or less broad, linear, acute, submembranous, scabrid on the margin. Peduncular-sheath 2–4 in. long, leaf-like, acute. Peduncle 6–14 in. long, 1/3– 1/2 lin. thick, somewhat compressed, with longitudinal minutely scabrid ridges. Spike about 4 lin. long, 2 1/2–4 1/2 lin. thick, ellipsoid when young, hemispherical when mature, several-flowered. Bracts 2–3 lin. long, 1 3/4–2 1/2 lin. broad, elliptic to obovate, obtuse, not keeled, thin and scarious, becoming somewhat membranous towards the margins, entire, 3-nerved, translucent, light brownish-ochreous or straw-coloured, glabrous, with no dorsal area. Lateral sepals slightly protruding beyond the bracts, 3–3 1/4 lin. long, 1/2– 2/3 lin. broad, lanceolate, acute, dull ochreous; keel most minutely scabrid-ciliolate at the middle, otherwise entire; third sepal crimson. Corolla yellow. Staminodes shortly tufted, pilose. Anthers scarcely 1 lin. long, linear-oblong. Seeds ellipsoid, minutely umbonate at the ends, longitudinally ridged, with transverse inconspicuous bladder-like markings, dull black.
