The drug plants of Illinois drugplantsofilli44teho Year: 1951 PYRUS MALUS L. Apple (culti- vated). Rosaceae. Bark and fruit collected. Grown in yards and in small and large orchards, in all parts of the state. The bark contains tannin, the glucoside phloridzin, and malic acid; the fruit juice contains malic acid, sugar, and pectin, f sed as a mild laxative and refrigerant. QUERGUS ALBA L. White oak, stave oak, stone oak. Fagaceae.—A moderate to very large tree 60 to 100 feet or more high, narrowly crowned with stout branches; bark of the trunk gray to whitish, shallowly fissured into irreg
The drug plants of Illinois drugplantsofilli44teho Year: 1951 PYRUS MALUS L. Apple (culti- vated). Rosaceae. Bark and fruit collected. Grown in yards and in small and large orchards, in all parts of the state. The bark contains tannin, the glucoside phloridzin, and malic acid; the fruit juice contains malic acid, sugar, and pectin, f sed as a mild laxative and refrigerant. QUERGUS ALBA L. White oak, stave oak, stone oak. Fagaceae.—A moderate to very large tree 60 to 100 feet or more high, narrowly crowned with stout branches; bark of the trunk gray to whitish, shallowly fissured into irregular, long, thin scales; leaves bright green, deep- ly 7- to 9-lobed, the lobes shouldered and rounded at their tips, stout-petioled, alter- nate; flowers inconspicuous; acorn oval, shiny, light brown, inch long, in shal- low, scaly cups. The bark, with the corky layer removed, is collected from trunks and branches 10 to 25 years old. Common to abundant as a constituent of woods and forests through- out the state. Contains tannin and the glucoside quercit- rin. Used as an astringent and tonic. l^Quercus rubra L., red oak, and Ouercus velutina Lam., black oak, are also sought for their barks. In the collecting, drying, and shipping, barks of the white, red, and black oaks should be kept separate.] RADIGULA ARMORAGIA (L.) Rob. Horseradish. Cruciferae. The root collected. Cultivated in gar- dens throughout the state and grown com- mercially in the vicinity of large cities. Contains the glucosides sinigrin and myr- osin; these react in the presence of water to form volatile oil of mustard. Used as a condiment, emetic, and rubefacient.
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