72 



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

 perenuial 9 to 15 dm lii,u:h, usually forming large tufts, with 

 Btrong, creepiugrootstocks, long, flat leaves, and ample, spreading 

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

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

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



