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Botanical: Populus tremuloides (MICHX.)
---Synonyms---American Aspen. White Poplar. Quaking Aspen.
Family: N.O. Salicaceae
---Description---This tree does not grow well in Britain, but in America it grows up to 100 feet in height. It has a pale yellowish bark on the young trunk and main branches; broadly ovate finely-toothed leaves averaging 1 3/4 inch long and wide, and having fine hairs on the margin.
The bark should be collected in spring. It has a bitterish taste and no odour.
---Constituents---The bark probably has similar properties to that of Populus tremula of Europe, i.e. salicin and populin.
---Medicinal Action and Uses---Febrifuge and tonic, chiefly used in intermittent fevers. It has been employed as a diuretic in urinary affections, gonorrhoea and gleet. The infusion has been found helpful in debility, chronic diarrhcea, etc. Is a valuable and safe substitute for Peruvian bark.
---Dosages---Fluid extract, 1 drachm. Of salicin, in intermittents, 10 to 30 grains. Of populin, 1 to 4 grains.
P. grandidentata, the large Aspen, is said to have more activity and bitterness.
P. candicans is also used.
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Bear in mind "A Modern Herbal" was written with the conventional wisdom of the early 1900's. This should be taken into account as some of the information may now be considered inaccurate, or not in accordance with modern medicine.
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