Prunus Virginiana.

Botanical name: 

The Prunus virginiana (wild black cherry), found throughout the eastern parts of the United States, has been widely used in domestic medicine since the days of the Indian, being perhaps more highly valued in this direction than by members of the profession, although it has been recognized in the Pharmacopeia since the first edition of this work, 1820. No more popular bark of a native tree, excepting sassafras, is known to home medication. It has a place in all works on early American domestic medication.

The History of the Vegetable Drugs of the U.S.P., 1911, was written by John Uri Lloyd.