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..
Geranium. - Synonym. - Cranesbill. The rhizome of Geranium maculatum Linne (nat. ord. Geraniaceae).
North America, in woods and thickets.
Of horizontal growth, cylindrical, 5 to 7 cm. long; about I cm. thick; rather sharply tuberculated, longitudinally wrinkled, dark brown; fracture short, pale reddish-brown; bark thin; wood-wedges yellowish, small, forming a circle near the cambium line; medullary rays broad; central pith large; roots thin, fragile; inodorous; taste strongly astringent.
Dose, 1/4 to 1 fl. dr.; 1. to 4. c.c.
Geranium is one of the best indigenous astringents, and is of great use in diarrhoea and dysentery, and in the various haemorrhages.