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Tufted, erect, coarse perennial 600-1700 mm high; rhizomes short and stout or long and deeply burrowed; mostly with burnt-off traces of basal sheaths; basal sheaths persistent, splitting into course fibres that form a protective layer around young shoots. Leaf blade 700-1000 x 3.5-6.0 mm; auricles absent or poorly developed; ligule 1-12 mm long. Inflorescence an open panicle, 120-240 mm long; branches usually long, lower half bare, branches and pedicels glabrous, smooth or scabrid due to scattered prickles. Spikelet 10-20 mm long, 3-7-flowered; glumes ±equal, 3-nerved, glabrous; lemma scaberulous, acute or with a minute awn up to 1 mm long, rarely longer; anthers 3.5-5.0 mm long.
Densely tufted perennial; culms 60 cm. to 1 m. high, the base sub-bulbous and thickly clad in the fibrous remnants of old leaf-sheaths.. Leaf-blades 15–50 cm. long and 2–4 mm. wide, mostly involute; ligule 1–4 mm. long.. Panicle 10–20 cm. long, loose.. Spikelets 3–6-flowered, oblong, 10–20 mm. long, gaping, often tinged with pink or purple; glumes unequal, the lower 3.5–6.5 mm. long, the upper 4–8 mm. long; lemmas ± indurated, scaberulous, the lower 6.5–10 mm. long, narrowly obtuse, often with an obscure subapical mucro less than 1 mm. long; palea as long as the lemma, the keels scabrid; ovary glabrous or hairy on the top; anthers 3.5 mm. long.
Perennial; up to 1.7 m high; tough; erect; rhizome short and stout; or long and deeply burrowed. Leaf blades 700-1000 x 3.5-6.0 mm; leaf sheaths persistent; breaking into coarse fibres that form a protective layer around young shoots; ligules 3-12 mm long. Flowers: panicle open; 120-240 mm long; lowest branches < 1/2 length of central axis; branches flexuous or rigid; either bare in lower 1/3 or with spikelets from ± the base upwards; spikelets 10-20 mm long; spikelets 3-7-flowered; lemmas acute or minutely awned.
Tough, erect perennial, rhizomatous (rhizome short and stout or long and deeply burrowed), up to 1.7 m high. Leaf blades 700-1000 mm long, 3.5-6.0 mm wide. Leaf sheaths persistent, breaking into coarse fibres that form a protective layer around young shoots; ligules 3-12 mm long. Spikelets 10-20 mm long. Panicle open, 120-240 mm long; spikelets 3-7-flowered; lemma acute or minutely awned.
Panicle up to 25 cm. long, loose and open, rarely somewhat contracted, erect or slightly drooping; branches usually 2-nate, rather slender, flexuous, branched above the middle, the lower ones fairly remote.
Leaf-lamina 10-60 cm. long, 2-4 mm. wide, usually involute, very rarely expanded, tapering to a setaceous point, erect or obliquely ascending, glabrous, smooth but scaberulous along the edges.
Lemmas 6-10 mm. long, chartaceous, lanceolate, dorsally scaberulous, with the apex subobtuse, acute or very shortly mucronulate from below two minute apical lobes.
Leaf-sheaths finely striate, open, fairly tight; the older ones remaining, splitting into regular thin brown fibres, which conspicuously surround the culm-bases.
Culms 50-120(150) cm. tall, 1-3-noded, stiffly erect, terete, growing from a slightly thickened base, glabrous, smooth.
Glumes 3-nerved, unequal, lanceolate, acute; the inferior 3·5-6·6 mm. long; the superior 4-8 mm. long.
Spikelets 10-20 mm. long, 3-6-flowered, green but often tinged with purple, gaping, often drooping.
Ovary glabrous or pubescent at the apex.
Pedicels of unequal length, filiform.
Paleas with the keels scabrous.
Densely tufted perennial.
Ligule up to 4 mm. long.
Anthers c. 3·5 mm. long.
