Chengkou Huanglian

Chengkou Huanglian

　　Huanglian is a perennial herb that thrives in cool, moist, shaded environments and slightly acidic soil rich in organic matter. It grows wild in dense mountain valley forests at elevations of 1,000 to 1,900 meters. Propagation is by seed, and the plant is harvested after more than six years of growth.

　　　　Huanglian is a commonly used traditional Chinese medicine, characterized by its cold nature and bitter taste. It functions to clear heat, dry dampness, purge fire, and detoxify. It is used for treating conditions such as damp-heat stuffiness and fullness, vomiting, diarrhea, jaundice, high fever with delirium, excessive heart fire, restlessness and insomnia, red eyes and acid regurgitation, toothache, diabetes, boils and abscesses; externally it treats eczema, damp sores, and ear discharge.

　　　　Huanglian is a perennial herbaceous plant of the Ranunculaceae family. The rhizome of Huanglian, which is cold in nature and sweet in taste, is commonly used to treat diarrhea, dysentery, vomiting, excessive internal heat and fire, irritability, and boils and abscesses caused by gastrointestinal damp-heat. Modern research shows that Huanglian contains active components such as berberine and coptisine, which have strong antibacterial effects. It also helps dilate blood vessels, lower blood pressure, reduce blood sugar, promote bile secretion, reduce fever, relieve inflammation, strengthen the heart, promote urination, alleviate pain, calm the nerves, reduce intraocular pressure, and fight cancer. In recent years, the medicinal applications of Huanglian have expanded further, achieving good therapeutic effects for many conditions.

　　　　Wild Huanglian is found in certain quantities in Chengkou.