HOW TO KNOW THE GRASSES 



TRIBE V. AGROSTIDEAE 



la. Spikelets disarticulating below the glumes and falling whole.... 2 



lb. Spikelets disarticulating above the glumes, the floret falling 8 



2a. Glumes with awns or protruding midribs 3 



2b. Glumes without awns; midrib not protruding 5 



3a. Both glumes with single awns; floret smooth and shining 4 



3b. First glume with 2 or 3 awns; floret hairy. Fig. 191. 



WOLFTAIL LycuTus pbleoides H. B. K. 



Perennial; tufted; culms 20 — 60 cm. tall. 



The dense, spikelike, bristly panicles are 

 usually gray in color. The spikelets fall in 

 pairs, one of each pair being on a longer 

 stalk than the other. The lower spikelet 

 is staminate and the upper one perfect. 

 Open brushy hillsides and ponderosa pine 

 forests, 1400—2600 m. elevation. A valu- 

 able forage grass, grazed especially in 

 spring. July — September. 



Figure 191 



4a. Awn straight and stiff, shorter than the lemma 25a 



102 



