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Perennial, occasionally stoloniferous; culms decumbent-spreading, rooting at the nodes, branching, commonly 15-40 cm. long, the nodes antrorsely bearded or sometimes glabrous; sheaths loose, glabrous to papillose-pilose, especially on the margins, usually shorter than the internodes, the uppermost bladeless or with a much-reduced blade; blades 3-10 cm. long, 4-8 mm. wide, acuminate, narrowed toward the base, almost petiole-like, pilose on both surfaces, the margins scabrous; racemes 1 or usually 2, 3-5 cm. long, finally spreading, the rachis and sterile pedicels thick, ciliate on the margins, the hairs on the inner margins short, white, those on the outside margins much longer, yellowish; spikelets 4 mm. long, the first glume acute or mucronate, sometimes minutely lobed, indurate at the base, thinner and prominently nerved toward the summit; awns about 8 mm. long, geniculate, the lower segment tightly twisted, the upper loosely twisted.
