Bol'du Bol'dus, Boldus, Boldo, Boldo Leaves, N.F. -- Monimiaceae. The dried leaf with not more than 2 p.c. of stems or other foreign organic matter, yielding not more than 6 p.c. of acid-insoluble ash; S. America, Chile. A large aromatic evergreen diocecious shrub. Leaves ovate, 3-7 Cm. (1 1/5-3') long, 1-4 Cm. (2/5-1 2/5') broad, base and apex rounded or indented, entire, revolute, thick coriaceous, rigid, brittle, pale green, papillose, petiole stout; odor peculiar, disagreeable (crushed) chenopodium-like; taste bitter, warm, pungent, camphoraceous, terebinthinate. Powder, greenish -- parenchyma, volatile oil cells, calcium carbonate cystoliths, hairs, numerous stomata; contains volatile oil, resin, boldine, boldoglucin (glucoside -- liquid), tannin. Sedative, hypnotic; tonic; atonic dyspepsia, nervousness, hepatitis, rheumatism, urethritis. Dose, gr. 5-10 (.3-.6 Gm.); 1. Fluidextractum Boldi (alcohol). Tincture, 20 p.c. mv-20 (.3-1.3 cc.), boldine -- local anesthetic, gr. 3 (.2 Gm.).