Bird’s-foot trefoil, << TREE foyl, >> is a perennial plant native to regions of Europe and Asia that have hot summers and cold winters. It also grows in the United States and Canada. It is sometimes called babies’-slippers. The plant is grown for forage, but it releases cyanide compounds when it wilts and then can be poisonous to livestock. It is often used in rock gardens as a trailing vine. It blooms all summer and autumn with clusters of yellow flowers tinged with bright red.
