WISED FLORA OF IOWA 



Fig. 30-B. Western Wheat Grass (Agropyron smitltii). Common along rail- 

 ' roads and in northwestern Iowa. The distribution of A. smithii is shown in 

 fig. C and of Slender Wheat Grass (A. tenerum) in fig. D. a, empty glumes; 

 b, flowering glumes with flowers. 



Fig. 30-C. Distribution of Western Wheat Grass. 



