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Perennial; rhizomatous and stoloniferous, or tufted (densely), 300-500 mm tall. Rhizome knotty. Leaf blades 50-130 mm long, 2.5-5.0 mm wide. Culms with lower nodes unbranched, middle and upper nodes profusely branched and forming leafy tufts. Racemes 2-6, digitate, 30-80 mm long.
Inferior lemma as long as the spikelet, oblong-lanceolate, with recurved margins, 7-nerved, nerves about equidistant, appressed hairy.
Superior glume c. 2/3 of the spikelet, triangular, 3-nerved, hyaline, appressed hairy, hairs fine, white.
Leaf lamina 4–10 × 0.2–0.4 cm., linear, flat, smooth and glabrous, with scaberulous margins.
Inferior leaves with reduced lamina, soon withering; median and superior leaves crowded.
Pedicels 2-nate, 0.5–2 mm. long, triangular, scaberulous, slightly widened at the top.
Superior lemma as long as the spikelet, oblong-lanceolate, acuminate, pale brown.
A rhizomatous perennial, rhizome branched, covered by hairy cataphylls.
Inflorescence composed of 3–4 racemes, 2–8 cm. long, erect, whorled.
Inferior glume short, rounded triangular, nerveless, hyaline.
Rhachis winged, 0.5 mm. wide, smooth with scabrous margins.
Culms 20–40 cm., erect, nodes dark and glabrous.
Spikelets 2.1–2.5 mm. long, oblong-lanceolate.
Ligule c. 1 mm. long, truncate.
Leaf sheaths glabrous, smooth.
