Graphephorum wolfii (Vasey) Coult.

Trisetum wolfii Vasey, Monthiy Rep. U. S. Dep. Agr Feb. Mar. 156. 1874.
Trisetum subspicatum var. muticum Bolander; S. Wats. Bot. Calif. 2: 296. 1880. (Type from
Upper Tuolumne, California, Bolander 5010.) Trisetum Brandegei Scribn. Bull. Torrey Club 10: 64. 1883. (Type from Cascade Mountains.
Brandegee &■ Tweedy in 1882.) Graphephorum Wolfii Vasey; Coult. Man. 423. 1885. (Based on Trisetum Wolfii Vasey.) Trisetum muticum Scribn. Bull. U. S. Dep. Agr. Agrost. 11: 50. 1898. (Based on Trisetum subspicatum var. muticuyn Boland.) Graphephorum muticum A. Heller, Cat. N. Am. PI. ed. 2. 31. 1900. (Presumably based on Trisetum
subspicatum var. muticum Boland.) Trisetum Wolfii muticum Scribn. Rhodora 8: 88. 1906. (Based on Trisetum subspicatum var.
muticum "Thurljcr.") Graphephorum Brandegei Rydb. Fl. Rocky Mts. 61. 1917. (Based on Trisetum Brandegei Scribn.) Trisetum Wolfii var. Brandegei Louis-Marie, Rliixlora 30: 241. 1928. (Based on Trisetum Brandegei
Scribn.) Trisetum Wolfii var. Brandegei forma muticum Uniis-Marie, Rhtxlora 30: 241. 1928. (Based on
T. muticum Scribn.) Perennial; culms erect, loosely tufted, sometimes with short rhizomes, glabrous, 50-100 cm. tall; sheaths scabrous, or rarely the lower pilose, 2 or 3 above the base; ligule trimcate, ciUate, 1-2 mm. long; blades flat, mostly erect, scabrous, rarely pilose on the upper surface, usually rather short, 2-4 mm. wide; panicle erect, rather dense but scarcely spikelike, green or pale, sometimes purplish, S-I5 cm. long, the axis scabrous on the angles, the branches and pedicels scaberulous; spikelets 5-7 mm. long, 2-flowered, sometimes 3-flowered, the rachillajoint about 2 mm. long, rather sparingly villous; glumes nearly equal, acuminate, about 5 mm. long; lemmas obtusish, scaberulous, 4—5 mm. long, awnless or with a minute awn below the tip, the callus-hairs scant, about 0.5 nun. long.
Type locality: Twin Lakes, Colorado (Wolf).
Distribution: Meadows and moist ground, at medium altitudes in the mountains, Montana to Washington, and southward to New Mexico and California.