Densely tufted perennial; culms 6–45 cm. high, erect.. Leaf-blades involute, filiform, up to 10 cm. long, stiff, densely scaberulous, striate on the underside.. Panicle narrowly oblong, 3–15 cm. long, loose, rarely contracted, the branches flexuous and sparsely asperulous.. Spikelets lanceolate, 2–4.5 mm. long, purplish; glumes persistent, lanceolate, subequal, 3-nerved, sparsely asperulous, acute; lemma ovate-oblong, 2–3 mm. long, pilose to almost glabrous, 5-nerved, the 4 lateral nerves usually excurrent into conspicuous mucros, awned from one-quarter the way up the back; awn geniculate, 3–5 mm. long; palea as long as the lemma, bimucronate; rhachilla-extension 0.2 mm. long, obscure.
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