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Cortex Fraxini/ash Bark

[Chinese medicine name] qinpi [English name]Fraxini Cortex [Source] Branches or dry skin of Oleaceae Fraxinus szaboana Lingelsh. [Plant form] Deciduous trees, 10 to 12 meters high. The bark is gray-brown, smoother and shallower when old. Oddly pinnate compound leaves, opposite; leaf shaft with...

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[Chinese medicine name] qinpi

[English name]Fraxini Cortex

[Source] Branches or dry skin of Oleaceae Fraxinus szaboana Lingelsh.


[Plant form] Deciduous trees, 10 to 12 meters high. The bark is gray-brown, smoother and shallower when old. Oddly pinnate compound leaves, opposite; leaf shaft with pilose and glandular hairs, gradually falling off; leaflets 3 to 5, ovate or long ovate, apex long acuminate, margins sharply serrate, smooth above, below along the main Veins and lateral veins pilose; flowers and leaves open at the same time or later, male and hermaphrodite, panicles born at the tip of the shoots and leafhoppers; flowers small, calyx bell-shaped, irregular 4- to 5-crack; no corolla; Stamens 2 exserted; stigma 2 deeply split; often pliers incurved. Samara long obovate or oblanceolate. Flowering from April to May and fruiting from August to September.


[Origin distribution] are both born on the hillside or in the forest. Distributed in Shaanxi, Gansu, Hubei, Sichuan and other places.

[Harvesting and Processing]In spring and autumn, peel or dry skin is removed and dried.

] [Herbs traits: Rolls or troughs, length 10 to 60 cm, 1.5 to 3 mm thick. The outer surface is grayish white, grayish brown to blackish brown or alternately patchy, flat or slightly rough, with greyish white dot-like lenticels and finely slanted wrinkles, some with branching marks. The inside surface is yellowish-white or brown and smooth. Hard and brittle, cross-sectional fiber, yellow and white. Odorless and bitter. Dry skin: long strips, 3 to 6 mm thick. The outer surface is gray-brown, with a fissured groove and a reddish-brown, round or horizontal lenticels. Hard quality, strong cross-section fiber.


[Pharmacological studies] Antibacterial, anti-inflammatory, analgesic, can be used for "gouty" arthritis, affect arachidonic acid metabolism; as well as cough, sputum, and asthma.


[chemical composition] contains esculin, cortex aescin, esculetin and other components, and share the trace component N-phenyl-2-aniline, this component was first obtained from the Hibiscus family. The other ingredients include horse chestnut bark, horse chestnut bark, cortex membranaceus, aesculin, aeskin, ursolic acid, carrot glycosides and other ingredients.


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