Delicate, loosely caespitose annual; culms up to 50 cm tall, erect or ascending, mostly unbranched, glabrous at the nodes, with yellowish non-sticky glands below the nodes; leaf sheaths eglandular; ligule a line of hairs; leaf laminas 1–9 cm × 2–4 mm, linear, flat or with involute margins, glabrous, eglandular.Panicle 2–14 cm long, elliptic to pyramidal, rather dense to ± open, the spikelets evenly distributed on short pedicels 0.5–1 mm long, the primary branches not in whorls, terminating in a fertile spikelet, glabrous or pilose in the axils, the branches and pedicels with oblong yellowish non-sticky glands.Spikelets 1.5–2.5 × 0.9–1.2 mm, oblong-ovate, lightly laterally compressed, 4–8-flowered, the florets disarticulating from the apex downwards, the rhachilla fragile; glumes subequal, 0.5–1 mm long, reaching to beyond the middle of the adjacent lemmas, lightly keeled, narrowly ovate to lanceolate in profile, glabrous, acute at the apex; lemmas 0.7–1 mm long, lightly keeled, oblong-ovate in profile, membranous with distinct lateral nerves, diverging from the rhachilla at c. 45°, those in opposite rows not imbricate, the rhachilla visible between them, purplish, smooth or scaberulous, broadly obtuse at the apex; palea glabrous on the flanks, the keels slender, wingless, ciliate with tubercle-based hairs 0.1–0.3 mm long; anthers 3, 0.2–0.4 mm long.Caryopsis 0.4–0.5 mm long, elliptic.