Compactly tufted perennials. Culms 35–82 cm high, unbranched, compressed; internodes smooth, glabrous. Leaves: ligule 0.5–1 mm long; blade conduplicate, to 17 cm long, to 1 mm wide. Inflorescences 12–28 cm long, 0.5–2 cm wide, densely congested and spicate or loosely contracted; branches tightly appressed, 1–4 cm long, bearing spikelets from base. Glumes subequal or normal, 6.5–11 mm long, entire, 1-nerved, scabrous or scaberulous or smooth, glabrous; lower glume acute, aristulate or awned; upper glume obtuse, aristulate. Lemma 6.5–10 mm long, subequal to both glumes, convolute, apically muricate, without an articulation or pseudoarticulation; column absent; awns subequal, 7–27 mm long, straight; lateral awns flattened. Caryopsis terete, 4.6–6 mm long, ranging from less than twice to more than twice embryo length.