Perennial; culms in large clumps, 40-90 cm. high, erect to stiffly spreading, simple, compressed, glabrous; sheaths keeled, usually pubescent on the margins at least toward the summit and on the collar, otherwise glabrous; ligule short, firm, fimbriate; blades 15-50 cm. long, 6-10 mm. wide, flat, or folded at the base, sparsely pubescent on the upper surface, glabrous on the lower, the margins ciliate toward the base; inflorescences terminal and axillary, finally long-exserted; racemes 2-6, 8-15 cm. long, ascending or spreading, the upper 2 or 3 approximate, the lower remote, the rachis about 0.5 mm. wide, flexuous, minutely scabrous on the margins; spikelets 3 mm. long, oblong, rather distant, the glume and sterile lemma equal, extending beyond the fruit, silky pubescent on the internerves; fruit 2 mm. long, oblong-elliptic, pale.
Home