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Panicle 14–35 cm long, linear to narrowly lanceolate; branches in a succession of whorls of ± equal length (those of the lowermost whorl usually more widely spreading than the remainder, bearing spikelets in the distal half only; the remainder bearing spikelets in the distal 2/3 or almost from the base), smooth or scaberulous, inconspicuously glandular, the spikelets either in pairs on appressed branchlets or singly and appressed to the primary branches.
Loosely tufted perennial 600-1020 mm high; rhizomatous. Leaf blade 100-400 x 1.5-6.0 mm, margins ciliate. Inflorescence 200-430 mm long, linear to lanceolate, branches whorled, with more than 10 whorls. Spikelet 2.0-3.5 mm long, reddish; glumes unequal; lower glume less than 1/2 as long as spikelet, lanceolate, apex obtuse; upper glume longer than spikelet, lanceolate-elliptic, apex acute to acuminate; lemma lanceolate-elliptic; anther 1.5-2.0 mm long.
Caespitose perennial, rarely with a short oblique rhizome; culms up to 120 cm tall, erect, unbranched; basal leaf sheaths chartaceous, not expanded, glabrous or shortly pilose near the margins above, rarely pilose throughout, terete, persistent; leaf laminas 10–40(55) cm × 1.5–6 mm, flat, folded or involute, glabrous or thinly pilose above, smooth or tuberculate-pectinate on the margins, attenuate to a slender filiform apex.
Spikelets (2.2)2.5–3.5 mm long, reddish; inferior glume 1/3–1/2 the length of the spikelet, rarely almost suppressed (and about 1/10 as long), lanceolate, nerveless, glabrous, obtuse at the apex; superior glume as long as the spikelet, lanceolate-elliptic, 1-nerved, smooth or hispidulous, acute to acuminate at the apex; lemma as long as the spikelet or almost so, lanceolate-elliptic; anthers 3, (1.2)1.4–2 mm long.
Perennial, loosely tufted and rhizomatous, up to 1 m high. Leaf blades 100-400 mm long, 1.5-6.0 mm wide, margins ciliate. Spikelets 2.0-3.5 mm long. Panicle 200-430 mm long, linear to lanceolate, whorled, with more than 10 whorls; lower glume less than half the spikelet length; upper glume longer than spikelet.
Grain (1.3)1.5–1.9 mm long, elliptic to narrowly ovate, scarcely to strongly laterally compressed.
