172 GRASSES AND HOW TO GROW THEM. 



stroy many other grasses and it will then grow vigor- 

 ously when moisture is brought to it. It can be made 

 to render excellent service in states where the rainfall 

 is not more than 12 to 15 inches. 



There is no state in the Union in which brome grass 

 will not grow more or less vigorously, but as with timo- 

 thy, it has highest adaptation for the states which lie 

 north of the line that marks the northern boundary of 

 Tennessee. Owing to its recent introduction it can 

 scarcely be said that its distribution in the United States 

 has been fully determined, but the reports that come 

 from the experiment stations north of this limit named, 

 nearly all speak more highly of the results obtained 

 from growing it than do the stations located in states 

 south of the said line. As in the case of timothy, the 

 best crops of this grass can be grown in those states that 

 border on the Canadian boundary line, but the centers 

 of distribution in this country are more likely to extend 

 westward from the Mississippi until the Cascade moun- 

 tains are reached, and southward from the said bound- 

 ary through two or three tiers of states. In other words 

 it will be found in the northerly areas of the semi-arid 

 belt, and in areas that border upon the same to the east 

 and the west. Its highest utility will probably be found 

 in North and South Dakota. But it is likely to render 

 much service also to Western Minnesota, Kansas, Ne- 

 braska, Wyoming, Montana, Colorado, Idaho, Washing- 

 ton and Oregon, and it may be other states south from 

 these. The centers of distribution are likely to cul- 

 minate in these states, not because Russian brome grass 

 will grow better in them than in states further to the 



