222 



Fig. 204. Bouteloua oligostachya (Nutt.) Torr. Blue 

 Grama. — A slender i)erennial ] .5 to 5 dm. high, with one to five re- 

 mote, pectinately many-flowered, usually spreading spikes 2.5 to 

 5 cm. long. — Wisconsin to Montana, north to Manitoba and Al- 

 berta, south to Texas, Arizona, and southern California; also at 

 Tampa, Fla. [Mexico.] .June-October. 



