NATIVE PASTURE GRASSES OP THE UNITED STATES. 





Percent- 

 age of 

 moisture. 



"Water-free basis (per cent). 



Material analyzed. 



Ash. 



Ether 

 extract. 



Crude 

 fiber. 



Nitrogen- 

 free 

 extract. 



Protein. 



Pento- 

 sans. 



Our sample No. 8862 



5.04 



6.29 

 7.06 



2.15 

 2.57 



29.91 

 28.41 



54.08 

 54.37 



7.57 

 7.59 



23.53 

















6.68 



2.36 



29.16 



54.22 



7.58 











i Montana Report, 1902, p. 66. 



ANDROPOGON FURCATUS Muhl. 



Andropogon furcatus (big bluestem) is very characteristic of the grass flora of the 

 prairie region of the Great Plains, but its distribution is much wider than this. It is 

 particularly abundant in the edges of bottom lands in the Dakotas and Montana, but 

 farther south and east, where the rainfall is more abundant, it inhabits the open prairies 

 and uplands. Very good pasture is produced by it early in the season, but after the 

 stems begin to stretch it is not paz'ticularly relished by stock. It is one of the important 

 ingredients of prairie hay from the Dakota-Oklahoma region and is considered of fair 

 quality. The species withstands burning better than almost any other grass. While 

 mowing to rid the ground of the old dead stems would undoubtedly be conducive to 

 better growth, it has withstood repeated burnings throughout central Kansas and 

 Nebraska for a great many years and still produces well. 



No. 8827 was collected at Williston, N. Dak., August 11, 1907. The sample was in 

 early maturity and was cut close to the ground. It contained, therefore, the entire 

 culm and all the root leaves, which are abundant. 





Percent- 

 age of 

 moisture. 



Water-free basis (per cent). 



Material analyzed. 



Ash. 



Ether 

 extract. 



Crude 

 fiber. 



Nitrogen- 

 free 

 extract. 



Protein. 



Pento- 

 sans. 



Our sample No. 8827 



4.73 



5.83 

 6.70 



1.89 

 3.26 



33.87 

 33.81 



54.15 

 49.09 



4.26 

 7.14 



28 24 

















6.66 



3.19 



33.81 



49.35 



6.99 









P u 



1 Canada Central Experiment Farm Bui. 19, p. 32. Colorado Bui. 12, p. 96. Connecticut Report, 1887, 

 .103. Iowa: Bui. 11, p. 458; Bui. 56, p. 474. Mississippi Report, 1895, p. 90. South Dakota Bui. 40, p. 28. 

 S. Department of Agriculture Report No. 32, 1884, p. 126. West Virginia Report, 1890-91, p. 36. 



ANDROPOGON SCOPARIUS Michx. 



Andropogon scoparius is a species of bluestem easily distinguished from the preceding 

 by its greater tendency to grow in bunches and its smaller stature throughout. Its 

 distribution is not essentially different from the larger species; likewise, it has a pur- 

 plish color early in the season. While grazed readily before it begins to head, it gets 

 woody even earlier than A, furcatus and then is not relished. It is not large enough 

 to amount to much as a hay crop. 



No. 8825 was collected at Williston, N. Dak., August 11, 1907. The sample was cut 

 close to the ground and represents the plant in early maturity. 





Percent- 

 age of 

 moisture. 



Water-free basis (per cent). 



Material analyzed. 



Ash. 



Ether 

 extract. 



Crude 

 fiber. 



Nitrogen- 

 free 

 extract. 



Protein. 



Pento- 

 sans. 



Our sample No. 8825 



5.48 



6.19 

 6.05 



2.36 

 2.29 



32.95 

 34.47 



53.87 

 51.15 



4.63 

 6.04 



26.69 

















6.05 



2.29 



34.39 



51.31 



5.96 









.i Canada Central Experiment Farm Bui. 19. p. 32. Connecticut Report, 1879, p. 153; 1887, p. 103. 

 Iowa: Bui. 11, p. 460; Bui. 56, p. 476. Mississippi Report, 1895, p. 90. South Dakota Bui. 40, p. 26. 

 U. S. Department of Agriculture Report No. 32, 1884, p. 126. Wyoming Bui. 87, p. 24. 



