Slender erect perennial; culms tufted, woody, 25-50 cm. high, more or less geniculate at the lower nodes; sheaths, except the uppermost, shorter than the internodes, glabrous or minutely pubescent, sometimes ciliate on the margin, the lower ones bladeless; ligule ciliate, about 1 mm. long; blades asymmetrical, acumi-nate, 5-8 cm. long, 1.5-2.5 cm. wide, glabrous, the margins scabrous; staminate spikelets 4-6 mm. long, acuminate; pistillate spikelets about 10 mm. long, the second glume a little longer than the sterile lemma; fruit 4-5 mm. long, triangular-gibbous, smooth and shining, white, or sometimes mottled brown.
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