Rhus Glabra. - Synonym. - Sumach. The fruit of Rhus glabra Linne (nat. ord. Anacardieae).

Habitat

North America, west to Colorado and Idaho; in barren soil.

Characters

Subglobular, about 3 mm. in diameter, drupaceous, crimson, densely hairy, containing a roundish-oblong, smooth putamen; inodor ous; taste acidulous.

Composition

The chief constituents are - (l) Tannic Acid, of which it contains from 6 to 27 per cent (2) Gallic Acid. (3) Acid calcium and potassium malates. (4) A red coloring matter.

Preparation

Extractum Rhois Glabrae Fluidum. Fluid Extract Of Rhus Glabra

By maceration and percolation with Glycerin and Diluted Alcohol, and evaporation.

Dose, 1/4 to 1 fl. dr.; 1. to 4. c.c.

Action And Uses Of Rhus Glabra

Sumach fruit is astringent and refrigerant. The fluid extract, when diluted, affords a very useful and effective gargle for inflammation and ulceration of the throat.