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Spikelets 4–10 × c. 1 mm, linear, lightly laterally compressed, 7–16-flowered, the florets disarticulating from below upwards, the rhachilla persistent; glumes subequal (the inferior a little shorter than the superior), 1.2–1.5 mm long, the inferior reaching from 1/2 to 2/3 the way along the adjacent lemma, the superior 1/4 to 1/3 the way, lightly keeled, lanceolate-elliptic in profile, glabrous, obtuse at the apex; lemmas 1.1–1.6 mm long, lightly keeled, narrowly ovate-elliptic in profile, membranous with faint lateral nerves, appressed to or very slightly diverging from the rhachilla, those in opposite rows not imbricate, the rhachilla visible between them, greyish-green with yellow apex, glabrous, obtuse or acute at the apex; palea deciduous soon after the lemma, glabrous on the flanks, the keels slender, wingless, scaberulous; anthers 3, 0.5–0.8 mm long.
Perennial, tufted (erect, occasionally decumbent), up to 1.5 m high. Leaf blades up to 300 mm long, up to 4 mm wide. Basal sheaths densely hairy at base. Spikelets 4-10 mm long, up to 1 mm wide. Inflorescence open, branches spreading, lowest branches whorled, branches and pedicels densely covered with prickles giving a greenish white appearance, spikelets contracted to branches; spikelets linear to oblong, rhachilla persistent, lemmas and/or paleas breaking up from base upwards; glumes half to two-thirds the length of lemmas directly above in intact spikelet; lemma greyish green usually flushed purple in upper portion above which is a yellow portion, and apex with a white membranous margin; palea margins touching to overlapping at apex, keels a obscure line, smooth or scaberulous; anthers 3, 0.5-0.8 mm long. Caryopsis ellipsoid.
Robust tufted perennial, the basal sheaths silky pubescent below; culms 60–150 cm. high, erect.. Leaf-blades flat or rolled, up to 30 cm. long and 4 mm. wide, stiff, glaucous.. Panicle lanceolate to ovate, 25–35 cm. long, the branches, or at least the lower, in successive whorls, these pubescent to pilose in the axils.. Spikelets 7–16-flowered, linear, 4–10 mm. long, 1 mm. wide, greyish green with yellow tips to the lemmas, breaking up from the base, the rhachilla persistent; glumes narrowly ovate-elliptic, subequal, 1.2–1.5 mm. long, faintly nerved, membranous, obtuse; lemmas broadly ovate, 1.1–1.5 mm. long, obscurely nerved, membranous, obtuse or acute; palea falling soon after the lemma, the keels scaberulous; anthers 3, 0.5–0.8 mm. long.. Caryopsis ellipsoid, 0.7 mm. long.. Fig. 61/3, p. 193.
Robust caespitose perennial without rhizomes or stolons; culms up to 150 cm tall, erect, branched or unbranched, glabrous at the nodes, sometimes with glandular dots or patches below the nodes; basal leaf sheaths silky-pubescent at the base, chartaceous, terete, eglandular, persistent; ligule a line of hairs; leaf laminas 10–30 cm × 2–4 mm, linear, flat or involute, stiff and glaucous, glabrous, eglandular.
Panicle 25–35 cm long, lanceolate to ovate, loose, the spikelets somewhat condensed about the primary branches on pedicels 2–5 mm long, the primary branches ± whorled (especially below), terminating in a fertile spikelet, pubescent to pilose in the axils, eglandular.
Caryopsis 0.7–0.9 mm long, elliptic.
