Rambling perennial; culms 60–120 cm. high, wiry, leafy.. Leaf-blades narrowly lanceolate, 3–18 cm. long, 3–8 mm. wide, without auricles, broadest at the base and tapering to an acuminate tip.. Inflorescence of paired (rarely 3) racemes, loosely borne in a scanty false panicle; racemes 4–5 cm. long; internodes and pedicels clavate, inflated above, sparsely ciliate.. Sessile spikelet 5.5–6.5 mm. long, including a short callus; lower glume narrowly lanceolate, depressed between the dorsal keels, glabrous; upper glume acute; upper lemma shortly bidentate, with an awn 9–12 mm. long.. Pedicelled spikelet narrowly lanceolate, 5–5.5 mm. long, narrower than the pedicel, glabrous, acute or mucronate.
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