304 



Fig. 600. Agropyron arizonicum Scribu. &. Suiitli, U. S. Dept. 

 A^r., Div. Agros. Bull. 4 : 27. 1897. Arizona Wheat-grass.— A 

 glaucous, erect perennial 4.5 to 6 dm, liigli, with soft, flat leaves 

 l'> to 18 cm. long, nodding 8i)ikelets 12 to 22 cm. long, and rather 

 remote, 5- to 7-flowered spikelets, 18 to 24 mm. long. Emi)t,v 

 glumes (a) about one-half as long as the sjtikelets; flowering 

 glumes loug-awued; awn divergent, about 24 mm. long. — Moun- 

 tains, New Mexico and Arizona. [Mexico.] August, September. 



