Perennial. Rhizome none. Soboles trigonous, 1-1.5 mm thick, hard, whitish with wine-red blotches; scales purple-red. Culms 0.18-1.01 m tall, glabrous or glabrescent. Leaves 1.1-2.6 mm broad, glabrous adaxially, sparsely hirsute abaxially; mouth of sheath truncate, hirsute. Inflorescence unbranched, 20-65 mm long. Glomerules 2-6, of 2-6 sessile spikelets. Bracts glabrous, the margins sparsely hirsute, shortly awned, pale stramineous with red striae, Spikelets c.4 mm long. Glumes 1.7-2.6 mm long, glabrous or sparsely hirsute or midrib stramineous with red striae. Achene subglobose, 1.5-1.8 x 1.2 mm, glabrous, undulate-tuberculate, with a series of deep horizontal troughs separated by horizontal and vertical ridges at junction of stipe and body, grey.
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