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Tufted perennial; culms 20–90 cm. high.. Leaf-blades flat or rolled, 10–30 cm. long, 2–4 mm. wide.. Panicle ovate or oblong, 4–20 cm. long, the spikelets densely clustered along the distal half of the primary branches.. Spikelets 6–20-flowered, narrowly ovate-oblong, 3–7(–12) mm. long, 1.5–2.5 mm. wide, the base of the lemmas overlapping to conceal the rhachilla, very dark green, breaking up from the base, the rhachilla persistent; glumes subequal, 0.8–1.7 mm. long, acute; lemmas broadly ovate, 1.7–2.5 mm. long; palea falling soon after the lemma, the keels pubescent; anthers 3, 0.5–1 mm. long.. Caryopsis ellipsoid, 0–7 mm. long.
Caespitose perennial without rhizomes or stolons; culms slender, up to 90 cm tall, erect, unbranched, glabrous at the nodes, eglandular; basal leaf sheaths glabrous, chartaceous, terete, eglandular, persistent; ligule a line of hairs; leaf laminas 10–30 cm × 2–4 mm, linear, flat or involute, glabrous or ciliate below, eglandular.
Panicle 4–20 cm long, ovate or oblong, open, the spikelets densely clustered along the distal half of the primary branches on pedicels 0.5–2.5 mm long, the primary branches not in whorls, terminating in a fertile spikelet, glabrous in the axils, eglandular.
Caryopsis c. 0.7 mm long, elliptic.
