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Betula

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Betula

European white birch, bark and leaves of betula alba (family Betulaceae); native to Europe, northern asia, and North America, north of Pennsylvania. It contains betulin (betula camphor), betuloresinic acid, volatile oil, saponins, betulol (sesquiterpine alcohol), apigenin, dimethyl ether, betuloside, gaultherin, methyl salicylate, and ascorbic acid; has odour of wintergreen and is used as a pharmaceutic aid (flavor/aromatic).