164 



Fig. 146. Calamagrostis tweedyi Scribn. ; Beal, Grasses X. 

 Am., 2: 348. A stout perennial 7 to 10 dm. high, with rather 

 broad, flat leaves and densely flowered, spike-like panicles 8 to 

 lli cm. long. Cascade Mountains, Washington. 



