302 



Fig. 598. Agropyron vaseyi Scribii. & Smith, U. S. Dept. 

 Agr., 13iv. Agrow. ]5ull.4: 27. 1897. Va.skv's Buncii-chas.s.— A 

 slender, wiry, erect, densely ca-spitoso ])erennial 3 to 4.5 dm. liijjh, 

 witli short, involute, setaceous leaves, and few-tlowered, iuter- 

 inpted spikes 4 to 8 cm. long. Spikelets rather remote, 3- to 

 5-llowered, S to 10 mm. long. Empty glumes awuless ; flowering 

 glumes with a div<'rgent awn 8 to 10 mm. long. — Dry, gravelly 

 soil, Montana and Nevada to Oregon and Washington. May- 

 August. 



