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- | Frangula purshiana (DC.) A. Gray - syn.Rhamnus purshianus DC.; Rhamnus purshiana (DC.) Cooper - Rhamnaceae \\ | ||
- | cascara buckthorn, cascara sagrada, **Amerikanischer Faulbaum**, Cascara | ||
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- | Tree up to 10m high, native to western North America. | ||
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- | "The dried bark of cascara has been used for centuries as an herbal laxative – first by Native Americans in the Pacific Northwest, and then later by European/ | ||
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- | "A tree, 4-10m high, with reddish-brown bark and hairy twigs. Leaves petiolate, elliptical, acuminate, serrulate, or sometimes entire, with 10-15 pairs of veins, dull green upper surface and pubescent underside. Inflorescence an axillary umbellate cyme of small greenish flowers. Fruit a turbinate, purplish-black drupe, about 8mm long, composed of 3 indehiscent cocci. \\ | ||
- | The fresh bark contains free anthrones and must be dried for at least 1 year or artificially aged by heat or aeration before therapeutic use. \\ | ||
- | Contains not less than 8.0% hydroxyanthracene glycosides of which not less than 60% consists of cascarosides, | ||
- | The active constituents are hydroxyanthracene glycosides (6-9%). Of these, 70-90% are C-10 glycosides, with the 8 -O-glycosides, | ||
- | [Cortex Rhamni Purshianae, WHO Monographs on Selected Medicinal Plants - Volume 2, 2004] [[http:// | ||
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- | "Parts used: Dried trunk and stem bark (Rhamni purshiani cortex). Fresh bark tends to cause nausea and griping, so it is stored for one year (or artificially aged) before use. Therapeutic category: Stimulant laxative. Active ingredients: | ||
- | [Medicinal Plants of the World. Ben-Erik Van Wyk and Michael Wink, Pretoria 2004, 269] | ||
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- | {{https:// | ||