Bulletin 575 U.S. Dept. of Agriculture. PLATE 
WHITE LOCO, OR RATTLEWEED” (OXYTROPIS LAMBERTI). 
This is the most destructive of all the loco plants, not because of its greater toxicity but because 
of its wide distribution, extending from Alaska on the north to Mexico on the south, and 
from the Continental Divide to the western part of Minnesota.. It poisons horses, cattle, 
and sheep. 
Sackett & WILHELMS Corp. N_Y. 
