Tufted perennial, the basal sheaths fairly broad, usually papery to subcoriaceous; culms 30–90 cm. high.. Leaf-blades convolute, up to 30 cm. long and 2–3 mm. wide.. Panicle spiciform, 6–18 cm. long, 5–8 mm. wide; primary branches appressed to the main axis, densely spiculate, the lowest 0.5–1.5 cm. long.. Spikelets 2.2–2.7 mm. long, grey-green; lower glume oblong, 0.5–1 mm. long, hyaline, nerveless, obtuse; upper glume ovate, 1.2–1.6 mm. long, ± 2/3 as long as the spikelet, acute; lemma ovate-elliptic, as long as the spikelet, the tip incurved, acute; anthers 3, 0.6–0.8 mm. long.. Grain almost square in side view, 0.7–0.8 mm. long and almost as wide.
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