Identification method
1, Wei Lian:
Huang Lian
Most herbs gather into clusters, often curved, shaped like chicken feet, commonly known as "chicken feet", its single root length 3-6 cm, diameter 0.3-0.8 cm. Rough surface, with irregular nodular ridges, fibrous roots and fibrous root residues. The smooth surface between the nodes, such as stalks, is commonly known as "crossing the bridge." The upper part of the brown scale leaves, the top often leaves a residual stem or petiole. The surface is grayish yellow or brownish. Hard, irregular cross-section, orange-red or dark brown leather, wood is bright yellow or orange, radially arranged, sometimes hollow pith. Micro gas, extremely bitter taste.
2, Yalian: medicinal herbs are mostly single, slightly cylindrical, shaped like "silkworm", slightly curved, 4-8 cm long, 0.5-1 cm in diameter, "over the bridge" longer. There are few residues at the top. To be dry, stout, rootless, shaped like silkworm for the best.
3. Yunlian: The medicinal material is bent into a hook shape, shaped like a "tail", mostly single, and smaller. To dry, thin, multi-section, less fibrous root, yellow color is the best product.
Authenticity
Coptis and astragalus are all bitter, cold, yellow, both at the gall bladder, stomach, large intestine, are able to heat dampness, Xiehuo detoxification, can cure bowel, diarrhea and other hot and humid diseases, the function is somewhat similar, for the clinical Commonly used. However, there are differences between the two drugs in terms of their medicinal properties and their treatment.
The similarities and differences between Rhizoma Coptidis and Astragalus membranaceus are as follows: Coptis is partial to the heart, longer than clearing fire and detoxifying, and dry, as the agent of heart and stomach, attending heart troubles, treating both the heart and the diarrhea, lowering the benefits, regulating the stomach and thick intestines, and treating dampness Heat, quench your thirst, relieve Croton's poison, eliminate water and fire, and spread and prolong the time. Astragalus is longer than clear lung heat, although the nature of cold but not dry, can cure heat yin and wet, attending Fanre and bleeding, governance of qi and heat attack blood bleeding syndrome and abdominal cramps or abdominal pain in children, can be a fecal and governance Burns and so on. Rhizoma Coptidis and Astragalus membranaceus are similar in nature but each has their own specialties. Therefore, the compatibility of the two drugs is more likely to exert a synergistic effect, and the benefit of the Qinghua hot and humid is obvious.
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