Baishouwu - cowhide elimination Radix Cynanchi Auriculati
(English) Auriculate Swallowwort Root
Alias ​​fly crane, white Polygonum, Polygonum multiflorum.
The source is the root of the cyanochum auriculatum Royle ex Wight.
The plant has a vine-like semi-shrub with milk. Stems are puberulent. Leaves opposite, heart-shaped to wide ovate, length, width 3 ~ 12cm, under the hair. Cymbidium umbellate, with flowers up to 30, total stalks up to 10 cm; calyx 5-parted; corolla white, 5-lobed, lobes puberulent; rachis lobes 5. Oval, fleshy; stamens 5, anther apate with 1-membrane; stigma conical, apate 2-locate. There are white enamel hairs at the top of the seed. Flowering period from September to October, fruiting period in November.
Born on a hillside forest, on the side of the road; or cultivated. The main production is Jiangsu.
The roots are removed from October to November, washed and dried.
The roots of the traits are cylindrical or long-spindle, sometimes cut into thin slices, 1.5 to 3.5 cm in diameter; the surface is yellowish brown to grayish brown, with obvious longitudinal wrinkles and horizontally long lenticels, and the cork can be peeled off. Hard, cross-section white, silty. Slightly fragrant, bitter after the first sweet taste.
The chemical components include phosphatidylcholine, phosphatidyletha-nolamine, phosphatidylinositos, and C21甾甙.
Sexually lukewarm, sweet and slightly bitter.
Indications tonic liver and kidney, benefiting blood, strong bones and muscles, heartache. For dizziness caused by liver and kidney yin deficiency, insomnia, forgetfulness, early whitening, weak waist and knees, weak bones, chest tightness and heartache.
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