240 



Fig. 222. Pappophorum apertum Scribn.; Bull. Torr. Bot. 

 Club, 9: 148; Beal, Grasses N. Am., 2: 447. A csespitose peren- 

 nial 3 to 8 din. high, with loug, narrow, mostly involute leaves 

 and narrow, pale, or often straw-colored panicles 15 to 20 cm. 

 long. Valleys, western Texas to Arizona and Mexico. June. 



