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Spikelets 1–2.5 × c. 1 mm, ovate-oblong, lightly laterally compressed, 4–8-flowered, the florets disarticulating from the apex downwards, the rhachilla fragile; glumes subequal, 0.4–0.8 mm long, reaching to about the middle of the adjacent lemmas, lightly keeled, narrowly lanceolate to narrowly oblong-elliptic in profile, glabrous, acute or obtuse at the apex; lemmas 0.6–0.9 mm long, lightly keeled, elliptic to ovate in profile, membranous with distinct lateral nerves, ± appressed to the rhachilla, those in opposite rows scarcely imbricate, the rhachilla ± visible between them, greenish or purplish, glabrous, obtuse at the apex; palea glabrous on the flanks, the keels slender, wingless, glabrous or scaberulous; anthers 2, 0.1–0.4 mm long.
Robust caespitose annual; culms up to 165 cm tall, erect, often branched below, glabrous at the nodes, eglandular; leaf sheaths eglandular; ligula a short but distinct membrane with fimbriate margin; leaf laminas 3–26 cm × 1–7 mm, linear, flat or with involute margins, glabrous, eglandular.
Panicle 9–60 cm long, linear to lanceolate or narrowly ovate, contracted or spreading, the spikelets evenly distributed but often crowded on short pedicels less than 1 mm long, the primary branches not in whorls, terminating in a fertile spikelet, glabrous in the axils, eglandular.
Caryopsis 0.3–0.5 mm long, obovate.
