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Perennial, tufted (erect), up to 1.2 m high. Leaf blades setaceous, up to 0.9 m long, up to 1.5 mm wide. Base with culms densely and strongly compacted, not easily separated, nodes glabrous; basal sheaths glabrous, inner sheaths often yellow; leaves mainly in a dense basal tuft, leaf blades long-tapering at apex, straight or drooping. Spikelets to 8 mm long, 0.5-2.0 mm wide. Inflorescence 100-700 mm long, open, much-branched, lowest branches whorled or not whorled, pedicels long; spikelets linear, 5-11-flowered, rhachilla persistent in lower portion, fragile in upper part, lemmas and paleas breaking up from base upwards; glumes translucent, smooth or scaberulous around apex and along keels, lower glume up to three-quarters the length of lemma above in intact spikelet; lemma dark green to greenish grey, not strongly keeled, keel obscure in lower part; palea margin nearly touching to touching along entire length, overlapping at apex, keel a narrow line; anthers 3, 0.6-1.2 mm long.
Perennial; up to 1.2 m high; tufted; erect. Culms base densely and strongly compacted; not easily separated; nodes glabrous; basal sheaths glabrous; inner sheaths often yellow. Leaf blades setaceous; up to 900 x 1.5 mm; long-tapering at apex; straight or drooping; leaves mainly in a dense basal tuft. Flowers: panicle 100-700 mm long; open; much branched; lowest branches whorled or not whorled; pedicels long; spikelets up to 8 x 0.5-2.0 mm; linear; 5-11-flowered; rachilla persistent in lower portion; fragile in upper part; lemmas and paleae breaking up from base upwards; glumes translucent; smooth or scaberulous around apex and along keels; lower glume up to 3/4 length of lemma above in intact spikelet; lemmas dark green to greenish grey; not strongly keeled; keel obscure in lower part; palea margins nearly touching to touching along entire length; overlapping at apex; keel a narrow line; anthers 3; 0.6-1.2 mm long.
Tufted, erect perennial, up to 1.2 m high; culms densely and strongly compacted at base, not easily separated, nodes glabrous; basal sheaths glabrous, inner sheaths often yellow; leaves mainly in a dense basal tuft. Leaf blade up to 900 x 1.5 mm, setaceous, long-tapering at apex, straight or drooping. Inflorescence an open, much-branched panicle, 100-700 mm long, lowest branches whorled or not whorled; pedicels long. Spikelets up to 8 x 0.5-2.0 mm, linear, laterally compressed; rachilla persistent in lower portion, upper part fragile, lemmas and paleas breaking up from base upwards; glumes shorter than spikelet, 1-nerved. Florets 5-11; lemma entire, dark green to greenish grey, not strongly keeled, keel obscure in lower part, 3-nerved; palea margins nearly touching to touching along entire length, overlapping at apex, keel a narrow line; anthers 3, 0.6-1.2 mm long. Flowering time Nov.-Apr.
Spikelets 4.5–8 × 1–1.5 mm, linear, lightly laterally compressed, 5–11-flowered, the florets disarticulating from below upwards, the rhachilla tough; glumes subequal, 1.3–2.5 mm long, reaching to between 1/3 and 3/4 the way along the adjacent lemmas, dorsally rounded, lanceolate, smooth or scaberulous on the nerve, obtuse at the apex; lemmas 2–2.2 mm long, dorsally rounded or keeled only in the upper part, semi-ovate in profile (with straight keel and gibbous margins), membranous with obscure lateral nerves, slightly diverging from the rhachilla, those in opposite rows not imbricate, the rhachilla visible between them, dark green to greyish-green or leaden, smooth or scaberulous on the midnerve and flanks above, obtuse at the apex; palea deciduous soon after the lemma, glabrous on the flanks, the keels slender, wingless, smooth and glabrous; anthers 3, 0.6–1.2 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, suffused with red (the inner ones usually yellow), compressed and keeled, eglandular, persistent; ligule a line of hairs; leaf laminas 10–90 cm long, c. 1.5 mm in diameter, tightly involute and setaceous, glabrous, eglandular.
Panicle 10–70 cm long, narrowly elliptic-ovate to linear-lanceolate, loose and ± open, the spikelets loosely condensed about the branchlets on pedicels 5–8 mm long, the primary branches 1–6 at a node but not obviously whorled, terminating in a fertile spikelet, glabrous in the axils, eglandular.
Perennial to 1.2 m. Leaves linear, rolled, culm bases strongly compacted. Spikelets in open, much-branched panicles, yellow and pink, ± 8 x 2 mm.
A grass. It keeps growing from year to year. It grows 1.2 m tall.
Caryopsis 0.9–1.1 mm long, oblong.
