216 



Fig. 198. BoutelouahavardiVasey ; Beal,Gras8esN. Am. 2 : 424. 

 Ha yard's Grama. — A perennial, with strong rhizomes, upright 

 culms 2 to 4 dm. high, and four to six short, silky-villons spikes 

 approximate on the common rachis. — Sandy plains, rocky hills, 

 canyons, al)0ut springs, etc., Texas to Arizona. [Northern Mex- 

 ico.] April-September. 



