Loco-Weeds
LOCO-WEEDS, or CRAZY-WEEDS, leguminous plants, chiefly species of Astragalus and Lupinus, which produce a disease in cattle known as " loco-disease." The name is apparently taken from the Spanish loco, mad. The disease affects the nervous system of the animals eating the plants, and is accompanied by exhaustion and wasting.
Note - this article incorporates content from Encyclopaedia Britannica, Eleventh Edition, (1910-1911)