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Tufted annual to short-lived perennial, to 1000 mm high, geniculate; culm node glandular below. Leaf blade to 300-800 x to 5.5 mm, eglandular. Inflorescence open to dense; lowest branches whorled; branches and pedicels with glands in a glandular ring. Spikelet 3-6 x 1-2 mm; rachilla persistent, sometimes fragile in upper part; lemmas and/or paleas breaking up from base upwards; glumes subequal; lowest lemma 1.4-1.9 mm long, broadly elliptic to broadly oblong-ovate, apex obtuse to broadly rounded, lateral nerves raised, obscure or prominent (can be in same spikelet); palea persistent, keels scaberulous, margins apart for entire length but nearly touching at apex; anthers 3, 0.7-1.0 mm long; caryopsis oblong to broadly oblong.
Annual, tufted (geniculate), up to 1 m high. Leaf blades up to 300 mm long, up to 5.5 mm wide. Spikelets 3-5 mm long, 1.0-1.8 mm wide. Inflorescence with lowest branches whorled; spikelets with rhachilla persistent, sometimes fragile in upper part, lemmas and/or paleas breaking up from base upwards; lowest lemma broadly elliptic to broadly oblong-ovate, obtuse to subacute, 1.5-1.7 mm long, lateral nerves conspicuous; palea keels scaberulous; anthers 3, 0.8-1.0 mm long. Caryopsis oblong to broadly oblong.
Caespitose annual or rarely short-lived perennial; culms up to 50 cm tall, erect or ascending, often rooting from the lower nodes, branched or unbranched, glabrous at the nodes, with a ring of elongated glands just below the nodes; leaf sheaths glabrous or pilose with tubercle-based hairs, with or without glandular pits above; ligule a line of hairs; leaf laminas 4–8 cm × c. 3 mm, linear, flat or involute, thinly pilose or glabrous, eglandular.
Panicle 6–14 cm long, narrowly oblong-ovate, rarely ovate, loose or somewhat dense, the spikelets evenly distributed on pedicels 1–2.5 mm long, the primary branches mostly branched from the base, often in a succession of whorls (the lowermost always whorled), terminating in a fertile spikelet, glabrous or pilose in the axils, the branchlets and pedicels with a glandular ring.
Caryopsis 0.6–0.7 mm long, elliptic.
