107 



Pig. 89. Stipa spartea Trin. Porcttine-gr.vss.— A stout. ere< t 

 perennial, with simple culms 6 to 10 dm. high, long, narrow leave* 

 and few-dowered panicles. The strong, twisted awns are 8 to 15 

 cm. long, and at the liase of the dowering glume is a long, pointed, 

 and bearded callus. — Prairies, Illinois to Colorado, north to Mani- 

 toba and British Columbia. June-August. 



