Panicle 5–11 cm long, linear to narrowly ovate or ovate; primary branches not in whorls, smooth or scabridulous, eglandular, the spikelets subsecund loosely contracted about the primary branches, these bare of spikelets or branchlets in the lower 1/4–1/3.Spikelets 1.8–2.6 mm long, grey-green to very dark green; inferior glume 1/3–1/2 the length of the spikelet, oblong to narrowly ovate, hyaline, nerveless, glabrous, raggedly obtuse to acute at the apex; superior glume (1/2)3/5–3/4 the length of the spikelet, narrowly ovate, hyaline, 1-nerved, glabrous, acute at the apex; lemma as long as the spikelet, narrowly ovate, acute; anthers 3, 0.8–1.3 mm long.
Densely caespitose perennial without rhizomes or stolons; culms up to 60 cm tall, erect, unbranched; basal leaf sheaths firmly chartaceous, glabrous, terete, decaying into a cushion of persistent fibres; leaf laminas 4–8(12) cm × 0.5–2 mm, tightly involute, ± filiform, smooth and glabrous, acute at the apex.
Grain 1–1.2 mm long, elliptic, truncate at the top.