Shrub or small tree, approximately 3 m (10 ft.) high, native to the
United States (Connecticut, Michigan, Georgia, Arkansas, Mississippi, Florida). The plant has obtuse or slightly pointed leaves
similar to the Prunus species, ellipsoid or ovoid fruits, and highly
flexible branches. The part used is the bark from the branches.
Haw, black is tonic, bitter, and aromatic.
The derivatives are fluid extract, tincture (20% in 60% ethanol),
and dried water alcoholic extract. The main constituents include
salicin (saligenin glucoside), vibumin, and a trace of essential oil
that has never been isolated.
