422 



WEED FLORA OF IOWA 



Figure 2.56B 







-«'• 5- -v-b •*■■-•■-■ _, c •■- .... d : e « 



Figure 256C 



Fig. 256. A and B. Quack Grass (Agropyron repens) showing various forms 

 C. Slender Wheat Grass (Agropyron tenerum). 



