Caespitose. Culms 27–33 cm high. Leaves: ligule 4–8 mm long; blade to 14.5 cm long, 1–1.5 mm wide, adaxially scabrous on veins, abaxially glabrous. Panicles to 12 cm long; primary branches paired, spreading. Spikelets 6–10 mm long, with 4 or 5 cleistogamous bisexual florets; pedicel 1–8 mm long. Glumes unequal, 3-nerved: lower glume 1.5–2.3 mm long; upper glume 2.3–3 mm long. Lowest lemma 3–4 mm long, 2 (–4)-toothed, 7-nerved, scabrous; lateral teeth shorter or poorly developed; inner teeth 0.2–0.4 mm long; awn arising 45–46% of lemma length below tip, 11–14 mm long, geniculate, with column twisted. Palea acute. Caryopsis 1.3 mm long.
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