Plant loosely tufted or turf-forming; shoots intravaginal or extravaginal. Culms stiff, (18–)30–60 cm tall, 1-noded. Leaf sheaths smooth; auricles present as erect swellings; leaf blades conduplicate, 6–20 cm × 0.3–0.5 mm, both surfaces smooth or abaxial surface scabrid, margins scaberulous, veins 5; adaxial to abaxial sclerenchyma strands absent, abaxial sclerenchyma in narrow discrete strands; ligule ca. 0.1 mm. Panicle loose, open, 4–7 cm; branches 1.5–4 cm, inserted singly. Spikelets 8–10 mm, purplish or rarely greenish; florets 3–5(–7); glumes smooth or upper scabrid, margin ciliolate; lower glume narrowly lanceolate, 2.5–3.5 mm; upper glume lanceolate, 4–5 mm; rachilla internodes 1.1–1.4 mm, scabrid; lemmas 5–6 mm, punctiform or scabrid; awns 2–6 mm; palea keels and back scabrid. Anthers 1.8–2.5(–3) mm. Ovary apex glabrous or sparsely hairy. Fl. and fr. Jul–Sep.
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