179 



Fig. 161. Trisetum montanum Vasey ; Beal, Grasses N. Am., 2 : 

 379. Rocky Mointain Oat-gkass. — A slender, erect, or ascend- 

 iuj;- native grass 3 to 8 din. high, with narrow, Hat leaves and 

 many-flowered, more or less contracted panicles 8to 12 cm. long. — 

 Monntains of Colorado and New Mexico. July, August. 



