Culms densely tufted with small scaly buds at base, erect, ca. 50 cm tall, 1–1.5 mm in diam. Leaf sheaths longer than internodes, lower clustered, glabrous but pilose at mouth; leaf blades linear or linear-lanceolate, usually involute,stiffly spreading, 5–7(–9) × 0.2–0.4 cm; ligule 0.2–0.3 mm. Panicle contracted, 5–8 cm, base included in uppermost sheath; branches narrowly ascending, simple, compactly spiculate, lowest branch (2–)3–4.5 cm. Spikelets 7–9 mm, florets 2–5; glumes narrowly lanceolate-oblong, acuminate; lower glume 2.8–4 mm, 3-veined; upper glume 4.2–5.5 mm, 3–5-veined; lemmas lanceolate-oblong, lowest 5–5.3 mm, glabrous or sparsely pilose near margins and toward base; awn 0.5–1 mm; palea keels scabrid.
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