and also through the summer if there is sufficient moisture. Switchgrass 

 can be harvested for hay, but it should be cut when the seed heads begin to 

 form. The plant's heavy root system makes it a good conservation plant. 



Caddo is a tall upland switchgrass that is leafy and productive. It 

 has considerable rust resistance and is a heavy seed producer. 

 Caddo yields heavily under irrigation and recovers well after mowing. 

 It is adapted to Oklahoma. 



Blackwell is a productive variety similar to Caddo but is somewhat 

 less resistant to rust. It is adapted to Kansas. 



Nebraska 28 is a small, fine -stemmed variety, suited for pasture or 

 for erosion control. It is adapted to the State for which it is named. 



TALL OATGRASS 



Tall oatgrass is a short-lived bunchgrass grown to a limited extent 

 in all except the arid and semi-arid sections of the country. It prefers 

 sunny sites and rich, well-drained sandy soils. Its use varies slightly with 

 the section of the country in which it is grown. In Washington and Oregon 

 it provides hay and pasture. In New York and New England it is planted with 

 legumes to provide early spring grazing. In the States south of Virginia., 

 Kentucky, and Missouri and east of Oklahoma and Texas it provides winter 

 grazing and hay. The forage is considered palatable and nutritious, but the 

 grass has a peculiar taste to which grazing animals must become accus- 

 tomed. 



Tualatin is an improved variety whose seed shatters less readily 

 than common tall oatgrass, but it produces slightly less forage. 



TIMOTHY 



Timothy is an important bunchgrass adapted to the cool humid climate 

 of the northernmost tier of States from Maine to Minnesota, the northern 

 portion of adjoining States, and Washington and Oregon. It is also found in 

 the valleys of the Rocky Mountains. It grows best on clay loams and tol- 

 erates acid soils. It is cold tolerant, requires ample moisture in the grow- 

 ing season, and does not withstand close grazing. It provides leafy and 

 highly palatable hay. 



WHEATGRASS 



The wheatgrasses are grown in the Dakotas, Nebraska, Kansas, 

 Montana, Wyoming, Colorado, Idaho, Utah, Nevada, in eastern Washington 

 and Oregon, and at higher altitudes in New Mexico, Arizona, and California. 

 They are adapted to a wide range of moisture conditions and temperatures, 

 and serve as pasture or conservation plants. 



Crested Wheatgrass 

 (Agropyron desertorum) 



Crested wheatgrass is a hardy bunchgrass adapted to the cool, dry 

 sections of the wheatgrass area. It does well on all types of soil except hard 



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