GRASSES OF IOWA. 139 



Silesia and Poland is cultivated. The fruit is used for the 

 purpose of making mush. 



Wild rice. Zizania aquatica, L. — This plant is indigenous to 

 the Mississippi valley, extending as far south as Louisiana. It 

 also occurs along the eastern coast of North America between 



Fig 71 G. Canary Grass (King-) 



New York and Massachusetts. It is most common, however, 

 in the northern Mississippi valley. It is also found in eastern 



