Lax tufts. Leaf-sheath glabrous, keeled, ± striate. Ligule 3-5 mm, membranous, rounded, abaxially hairy. Collar thick, glabrous. Leaf-blade 7-30 cm × 4-8 mm, tapering, ± strict, subconvolute, subcoriaceous, abaxially and on margins glabrous, adaxially prickle-toothed on edges of and between prominent flat-topped ribs. Culm to 50 cm, internodes glabrous. Panicle 5-12 cm, rather dense, scarcely spreading, ± nodding; branches usually binate at nodes, glabrous, lower branches subtended by lanceolate bracts; pedicels to 5 mm, scabrid to pilose above. Glumes subequal, ovate-lanceolate, acute, membranous, almost entirely scarious, keel toothed above, 3-nerved; upper 10-14 mm. Florets included by glumes, light brown at maturity. ♂ florets: lemma 6-7 mm, ovate-oblong, lobes erose 2-4 mm and scarious-tipped, ± appressed long hairs on keel above shorter below, margins sparsely ciliate; awns c. 6 mm, slender, ± straight, insertion c. 3 mm above base; palea 5-6 mm, ciliate apex bifid, keels hairy above; lodicules 1-1.25 mm, ovate-lanceolate, irregularly 1-2-lobed; callus short, hairs 0.5 mm appressed; anthers 2-3.3 mm. ☿ floret: lemma 4-5 mm, broadly ovate, glabrous, appressed shortly hairy at apex with slender subapical mucro 0-0.5-1 mm; palea ≈ lemma, ovate-oblong, 1-keel, hairy above; lodicules 0.6-1 mm, glabrous; anthers 1.3-2 mm; gynoecium: ovary c. 1 mm, stigma-styles 4.5-6.5 mm; caryopsis c. 2 mm, embryo c. 0.5 mm, hilum c. 0.5 mm.
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