Plant tufted. Culms slender, erect or ascending, up to 2 m, many-noded, simple or branched below, nodes glabrous. Leaf sheaths usually with tubercle-based hairs; leaf blades linear, 10–40 × 0.4–1 cm, glabrous on both surfaces, margins scaberulous, apex acute; ligule 2–4 mm. Inflorescence 4–13 cm, fascicles with up to 10 racemes; racemes composed of 5–15 spikelet pairs. Sessile spikelet 3.8–4.5 mm, yellowish or purplish; lower glume smooth, glossy, scabrid-puberulous near apex; upper slightly longer than lower; upper lemma ca. 2 mm; awn 1.2–1.8 cm. Pedicelled spikelet narrowly lanceolate, male or barren, glumes sometimes enclosing hyaline lemmas.
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