72 



Fig. 54. Panicum virgatum L. Switch-grass. — A stout, erect 

 perennial 9 to 15 din. bigh, usually forming large tufts, with 

 strong, creeping rootstocks, long, flat leaves, and ample, spreading 

 panicles. — Sandy soil, usually along streams and about ponds and 

 lakes, Maine and Ontario to North Dakota. Colorado, Arizona, 

 Texas, and Florida. [Mexico.] July-October. 



