Perennial. Culms densely tufted, erect, 15–60 cm tall. Leaf sheaths glabrous, in tight bundles at culm base; leaf blades flat or involute, 3–10 cm, 1–2 mm wide, usually glabrous. Inflorescence of (1 or)2(–4) distant racemes; racemes 2.5–5 cm, falcate at maturity, persistent, spikelets numerous, densely crowded, pectinate; rachis not extendedbeyond uppermost spikelet. Spikelets 5–6 mm; glumes lanceolate, persistent; lower glume linear-lanceolate, ca. 3.5 mm; upper glume lanceolate, 3.5–6 mm, sparsely villous on keel; lemma of fertile floret 5–5.5 mm, dorsally villous, lateral veins extended into 3 short awns at apex, intermediate lobes acute; 2nd floret ca. 2 mm, densely long-villous at rachilla apex, cleft to the base, lobes rounded, awns 3, scabrous, ca. 5 mm; 1 or 2 additional broad awnless rudiments sometimes present. Fl. and fr. summer to autumn. 2n = 28, 35, 42, 61, 77.
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An annual or perennial grass. It forms dense tufts. It is erect and grows 15-60 cm tall. The leaves are 3-10 cm long and 1-2 mm wide. There are 1 or 2 flowering stalks. These are 3-5 cm long.
It is a temperate plant. It grows in dry, shallow, rocky soils. It grows between 300-2,400 m above sea level. It grows in areas with an annual rainfall above 500 mm. It can tolerate drought. It can grow in arid places.