Mat-forming perennial, either shortly rhizomatous or densely caespitose; culms 15–60 cm. high.. Leaf-blades flat, 3–10 cm. long, 1–4 mm. wide.. Racemes paired (rarely up to 5), terminal, 3–7 cm. long, pallid; internodes and pedicels filiform to linear, ciliate.. Sessile spikelet 6.5–11 mm. long, including an oblong callus 1 mm. long; lower glume linear to narrowly lanceolate, slightly convex on the back usually with a nerveless median hollow, thinly coriaceous with herbaceous to membranous tip, 4–10-nerved between the lateral keels, glabrous, narrowly winged, acutely or acuminately bidentate; upper glume acuminate to an awn 0.5–4 mm. long; upper lemma bilobed to the middle, with an awn 14–20 mm. long.. Pedicelled spikelet narrowly lanceolate, 5.5–10 mm. long, acute to acuminate.
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