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..
Rumex.Synonym. - Yellow Dock. The root of Rumex crispus
Linne, and of some other species of Rumex (nat. ord. Polygonaceae).
Europe; naturalized in North America, in grassy places and along roadsides.
From 20 to 30 cm. long, about 10 to 15 mm. thick, somewhat fusiform, fleshy, nearly simple, annulate above, deeply wrinkled below; externally rusty brown, internally whitish, with fine, straight, interrupted, reddish, medullary rays, and a rather thick bark; fracture short; odor slight, peculiar; taste bitter and astringent.
Dose, 1/4 to 1 dr.; 1. to 4. gm.
Rumex is astringent, slightly tonic and alterative. It has been used in svnhilis. scorbutic disorders, and cutaneous eruptions.