Cortex Phellodendri, scientific name of traditional Chinese medicine. Rutaceae plant phellodendron amurense? Snyder's dried bark. Known as "Phellodendron amurense". After peeling off the bark, remove the rough skin and dry it in the sun.
Phellodendron amurense is plate-shaped or shallow-grooved, with different lengths and a thickness of 1 ~ 6mm. The outer surface is yellow-brown or yellow-brown, flat or with longitudinal grooves, and some can see lenticels and residual taupe roughness; The inner surface is dark yellow or light brown with slender longitudinal edges. Light, hard, fibrous, split and layered, dark yellow. Slight gas, extremely bitter taste, sticky to chew.
Place of production
Phellodendron amurense is mainly produced in Liaoning, Jilin and Hebei.
It comes from wampee tree, called wampee tree, which is mainly produced in Sichuan.
From Phellodendron amurense, commonly known as Guanhuangbai, mainly produced in Northeast China.
Peel off the bark from March to June, scrape off the rough skin when it is fresh, and dry it in the sun, which is called "Guan".
Reference to the above content: Baidu Encyclopedia-Phellodendron amurense