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Caespitose perennial; culms 30–120 cm. high, erect.. Leaf-blades usually rolled, 10–25 cm. long, 2–4 mm. wide, almost glabrous to hoary tomentose.. Panicle ovate and spreading, occasionally linear and contracted, 10–30 cm. long, the branches often loosely hirsute at least in the axils.. Spikelets 5–15-flowered, narrowly oblong, 5–10 mm. long, breaking up from the base, the rhachilla persistent; glumes lanceolate, yellowish, acuminate, the lower 2–2.5 mm. long, the upper 2.5–3 mm.; lemmas lanceolate, 2–3 mm. long, the keels and lateral nerves, or the latter only, ciliate with stiff tubercle-based hairs, brownish or purplish, acute; palea falling soon after the lemmas, the keels ciliate with stiff tubercle-based hairs 0.5–1.2 mm. long; anthers 3, 1.2 mm. long.. Caryopsis narrowly lanceolate in outline, terete, 1–1.5 mm. long.. Fig. 60/9, p. 190.
Densely tufted perennial to 1200 mm high, erect; rhizome short; culm unbranched, eglandular. Leaf blade to 250 x 2-4 mm. Inflorescence spreading or contracted; lowest branches not whorled, axils hairy. Spikelet 5-10 x 1.9-4.0 mm, rachilla persistent; lemmas and/or paleas breaking up from base upwards; glumes unequal, keeled, acute; lemma keeled, lateral nerves distinct, not excurrent from margins; lateral nerves and sometimes keel hairy, hairs 0.3-1.2 mm long; palea falling with or soon after lemma, keels wingless, hairs 0.3-1.2 mm long, bulbous-based, hairs extend beyond lemma; anthers 3, 1.2 mm long.
Perennial; up to 1.2 m high; shortly rhizomatous and densely tufted; erect. Leaf blades up to 250 x 2-4 mm. Flowers: panicle open; spikelets (4)5-17 x 1.9-4.0 mm; rachilla persistent; lemmas and/or paleae breaking up from base upwards; lemmas with hairs 0.3-1.2 mm long on lateral nerves and sometimes on median keel; palea keels with bulbous-based hairs 0.3-1.2 mm long which extend beyond lemma; anthers 3; 1.2 mm long.
Perennial, shortly rhizomatous and tufted (densely, erect), up to 1.2 m high. Leaf blades up to 250 mm long, 2-4 mm wide. Spikelets 5-10 mm long, 1.9-4,0 mm wide, with rhachilla persistent, lemmas and/or paleas breaking up from base upwards; lemma with hairs 0.3-1.2 mm long on lateral nerves and sometimes on median keel; palea keels with hairs 0.3-1.2 mm long which extend beyond lemma; anthers 3, 1.2 mm long.
Caespitose perennial without rhizomes or stolons; culms up to 120 cm tall, erect, unbranched, glabrous at the nodes, eglandular; basal leaf sheaths glabrous, chartaceous, terete, eglandular, persistent; ligule a line of hairs; leaf laminas 10–25 cm × 2–4 mm, linear, involute or rarely flat, glabrous to hoary-tomentose above, eglandular.
Panicle 10–30 cm long, ovate and spreading or linear and contracted, the spikelets evenly distributed on pedicels 2–7 mm long, the primary branches not in whorls, terminating in a fertile spikelet, loosely pilose in the axils, eglandular.
Caryopsis 1–1.5 mm long, narrowly lanceolate.
