Stoloniferous perennial; culms 1.5-2 m. high, erect from a long decumbent base, 1-2 cm. thick, simple or sparingly branched, the nodes densely appressed-hirsute; sheaths mostly longer than the internodes, papery or somewhat succulent, sparsely hispid at the throat; ligule membranaceous, about 2 mm. long; blades of the midculm as much as 1 m. long, 6 cm. wide, the upper and lower one smaller, the margins serrulate; panicles 30-60 cm. long, 10-40 cm. wide, the axis rather deeply furrowed, the branches stiffly ascending, naked at the base, the lower ones whorled, mostly 20-30 cm. long; spikelets 2.5 mm. long, short-pedicellate, appressed to the branchlets, pointed, glabrous, the first glume acute, a little more than half as long as the spikelet; fruit 1.8 mm. long, obovate, smooth and shining.
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