Botanical name: 

The leaves and inner bark of Robinia pseudo-acacia.

Dose.—An ounce of the inner bark may be added to one pint of water, and boiled to half the quantity, and administered in doses of a wineglassful every ten minutes, until emesis ensues. A tincture might be employed in some cases of diarrhrea and dysentery.

Therapeutic Action.—Black locust is emetic, cathartic, alterative, and tonic. The bark is possessed of mild, but pretty active emetic properties. It is particularly recommended in the early stages of dysentery, and is said to operate as a mild and certain emetic. Dr. Eberle says he has known it employed with as much advantage as is usually obtained from the ipecacuanha.

The American Eclectic Materia Medica and Therapeutics, 1898, was written by John M. Scudder, M.D.