238 MISC. PUBLICATION 200, TJ. S. DEPT. OF AGRICULTURE 



blades flat, short, 3 to 5 mm wide, pubescent on both surfaces; spike 

 mostly 3 to 6 cm long, sometimes longer; spikelets usually closely 

 imbricate; glumes rather broad and flat; lemmas pubescent, awnless 

 or nearly so. % — Alpine regions, Montana to Labrador and Alaska. 

 15. Agropyron bakeri E. Nels. Baker wheatgrass. (Fig. 460.) 

 Kesembling A. subsecundum; culms erect, mostly 50 to 100 cm tall, 



Figure 457.— Agropyron pauciflorum, 

 X 1. (Shear 404.) 



Figure 458.— Distribution of 

 Agropyron pauciflorum. 



Figure 459.— Agropyron latiglume, 

 X3. (Type.) 



Figure 460.— Agropyron bakeri, X 1. 

 (Hitchcock 1686, Colo.) 



rather loosely tufted; spike mostly 5 to 12 cm long, the spikelets 

 rather loosely imbricate; awns divergently curved when dry, 1 to 4 

 cm long. % — Open slopes, upper altitudes, northern Michigan; 

 Alberta to Washington and New Mexico (fig. 461). 



16. Agropyron pringlei (Scribn. and Smith) Hitchc. (Fig. 462.) 

 Culms tufted, decumbent at base, 30 to 50 cm tall, the basal sheaths 



