This section is from the book "Materia Medica Pharmacy, Pharmacology And Therapeutics", by W. Hale White. Also available from Amazon: Materia Medica Pharmacy, Pharmacology And Therapeutics..
Rubus. - Synonym. - Blackberry. The bark of the root of Rubus vil-losus Aiton, Rubus canadensis Linne, and Rubus trivialis Michaux (nat. ord. Rosacea).
North America, in fields and thickets.
In thin, tough, flexible bands, outer surface blackish or blackish-gray, inner surface pale brownish, sometimes with strips of whitish, tasteless wood adhering; inodorous; taste strongly astringent, somewhat bitter.
Fluid Extract of Rubus is used to make Syrupus Rubi. Dose, 1/2 to 2 fl. dr.; 2. to 8. c.c.
2. Syrupus Rubi. - Syrup of Rubus. Fluid Extract of Rubus, 250; Syrup, 750.
Dose, 1 to 2 fl. dr.; 4. to 8. c.c.