Perennial; culms 20–60 cm. long, rarely more, slender, trailing or erect.. Leaf-blades spreading or deflexed, lanceolate, 3–7(–12) cm. long, 5–15 mm. wide, straight at the base, cross-veins present or absent, subglabrous or sparsely pilose, acute to acuminate.. Panicle ovate, 4–6(–13) cm. long, finely branched.. Spikelets oblong, 2–2.5(–3) mm. long, dark green, strongly striate, often sparsely pubescent, rarely glabrous or scaberulous, obtuse or acute; lower glume ovate or oblong, 2/3 the length of the spikelet, 3(–5)-nerved, obtuse or acute; upper glume ovate, as long as the spikelet, 7-nerved, acute; lower lemma 7-nerved, male, its palea well developed; upper lemma pale, shining.
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Loosely tufted perennial up to 1 m. high with weak stems