GENERAL REMARKS ON FORAGE GRASSES 13 



and further in the mountains, and west to eastern Kansas 

 and eastern Nebraska. It is the region in which timothy 

 can be successfully grown and hence is usually known as 

 the Timothy Region. Other humid regions occur on the 

 Pacific Slope from Puget Sound to northern California 

 and in the mountain valleys of our western states. In the 

 timothy region thrive the common meadow and pasture 

 grasses, such as orchard grass, red top and bluegrass, and 

 the well-known legumes, red and white clover. 



Warm Humid Region 



This area extends from the Gulf of Mexico northward 

 to the Cool Humid Region and west to eastern Texas. 

 As the Cool Humid Region is known as the Timothy 

 Region, so the Warm Humid Region is known as the 

 Bermuda Grass Region and corresponds approximately 

 with the Cotton Belt. Important forage plants of this 

 area are Bermuda grass and Japan clover for pasture, 

 and the cowpea and velvet bean for hay and soiling. 

 Johnson grass here reaches its greatest development. 



Semiarid Region 



This lies west of the two regions already mentioned 

 and includes all those portions of the Great Plains where 

 crops can be grown without irrigation. Small areas, 

 classed as semiarid, are scattered throughout the western 

 half of the United States. They may lie in isolated 

 valleys or in spots or belts at the base of mountains be- 

 tween the humid region above and the arid region below. 

 In the moister portions of the semiarid region many farm 

 crops, characteristic of the humid region, can be grown. 



