Plant forming extensive clumps; stems elongated, longer ones decumbent, rooting. Leaves plano-convex, 10-20 cm long, 3-4.5 mm wide, striate, glabrous; apex conspicuously 2-toothed with a broad sinus between; sheath margins intact, often reddish or brown. Male inflorescence 1/2-2/3 as long as leaves, branched; branches whorled or opposite; scape shorter than rachis, flattened; flower clusters whorled. Female inflorescence smaller, denser, branched or unbranched; scape distinct. Cluster bracts often conspicuous, broad-based with tapering, pointed upper part, a little shorter to much longer than flowers; bract and inner bract whitish. Flowers cylindrical or obconical, sessile; male flowers c. 4 mm long, females c. 5 mm long. Sepals and petals yellow or cream; sepals shiny, scarious; petals dull, petaloid.
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