Rhus glabra - Smooth Sumach
"CONSTITUENTS: Volatile oil, resin, tannic and gallic acid, albumen, gum, starch. The berries contain malic acid in combination with lime.
PREPARATIONS: Extractum Rhois Fluidum (A. D.), Fluid Extract of Sumach Bark. Dose: from a half to one dram. Extractum Rhois Glabrae Fluidum (U. S. P.), Fluid Extract of Sumach Berries. Dose: one dram.
Therapy: It is used in aphthous stomatitis, both internally and externally, in gangrenous stomatitis in conjunction with more active agents, and in stomatitis materni it is a good remedy. It will serve a good purpose in atonic ulcerations of the stomach and intestinal canal, in some cases of prolonged diarrhea and dysentery with greatly debilitated mucous surfaces. Its field is well covered, however, with more active remedies."
(Finley Ellingwood: The American Materia Medica, Therapeutics and Pharmacognosy, 1915)