Stems erect, triquetrous, smooth or slightly scabrid, (15-)40-140 cm. Leaves shorter than to as long as the stem, (2-)3-5(-8) mm wide. Inflorescence narrow, up to 30 cm long, consisting of 2 to 14 spikelets. Spikelets up to 5 cm long, single or binate at the middle nodes, erect or suberect, simple or branched into 2-4 secondary spikelets, the male part shorter to much longer than the lax-flowered 3-5 mm thick female part. Glumes light brown with whitish hyaline margins, 2.5-4 mm long, apiculate or midrib excurrent into an up to 5 mm long awn. Utricles olivaceous, 5-9.5 by 1-2 mm, gradually tapering into a hispidulous margined, 2-3 mm long beak.
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