Bui. 575, U. S. Dept. of Agriculture. 







Plate VI. 









4&L 



" ^^ef' wi^ 





t »l V L 









1§P^ 









fe 



0i 



Loco Plant (Astragalus diphysus). 



This is a type of a number of loco plants growing in the Southwest, which are particularly de- 

 structive to horses. Experimental work has proved that this poisons both horses and cattle. 



