The dried transversely cut slices of the root of Jateorhiza Calumba.
HABITAT.--Mozambique, East Africa. Cultivated in the East Indies.
PROPERTIES.--Odor slight, taste bitter. It contains calumbin, a neutral
bitter, crystalline substance; an alkaloid, berberine; calumbic acid and
starch.
DOSE.--Horses and cattle, ¹⁄₂ to 1 oz.; sheep and pigs, 1 to 2 drs.;
dogs, 5 to 30 grs.