Strongly rhizomatous, dull bluish green perennials, 15-100 cm, forming loose swards. Leaf-sheath chartaceous, striate, glabrous or shortly pubescent with some longer hairs. Ligule 1-3 mm, ± truncate, denticulate, abaxially shortly pubescent. Leaf-blade 5-17 cm × 2-9 mm, rather stiff, shortly pubescent-scabrid, sometimes with scattered longer hairs or almost glabrous; margins minutely scabrid, tip acute. Culm erect or spreading, often decumbent, nodes loosely to densely bearded, internodes glabrous. Panicle (1)-4-10-(16) × (0.5)-1-2 cm, narrow-oblong or lanceolate, dense to rather lax, erect; rachis with ± sparse minute hairs, branches and very slender pedicels with slightly longer hairs. Spikelets 4-5.8 mm, whitish green, sometimes purplish. Glumes shortly stiff-ciliate on keel, minutely scabrid elsewhere, acute to acuminate; lower slightly shorter, narrow-lanceolate, upper elliptic-lanceolate with strong lateral nerves. Lemma 1-2.5 mm, elliptic-to ovate-lanceolate, with a few prickle-teeth on and near keel or scattered above, otherwise glabrous, ± shining, margins minutely ciliate-scabrid; lower lemma awnless, upper lemma with slightly curved awn, 3-5 mm, inserted c. 0.5 mm below lemma apex, sometimes twisted near base. Palea keels short-ciliate, apex obtusely lobed, short-ciliate. Callus hairs 0.2-0.3 mm, or callus of lower floret glabrous. Rachilla sparsely soft-hairy, hairs to 0.6 mm. Anthers (1)-1.5-2.2 mm. Caryopsis c. 1 × 0.7 mm.
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Perennial, rhizomatous, usually decumbent. Culms to 100 cm high. Young shoots extravaginal. Leaves mostly scattered along culms; basal sheaths puberulous (upper sheaths glabrous); ligule obtuse, erose, abaxially hairy; blade to 6 (–12) cm long, to 8 mm wide, glabrous or pubescent. Panicles 4–10 cm long; primary branches shortly pilose. Spikelets 4–6 mm long. Glumes muticous: lower glume c. 4 mm long, with midnerve scabrous; upper glume slightly longer, acute. Lemma narrowly ovate, c. 2–2.3 mm long, obtuse, keeled, 5-nerved, glabrous; callus with 4–6 rigid hairs c. 0.6 mm long. Upper floret male; callus densely bearded with hairs to 0.6 mm long; lemma awn up to 4 mm long, protruding beyond glumes, subapical, with twisted column, straight or geniculate or curved.
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