The root of Cudrania tricuspidata is alias Cudrania tricuspidata root, Sichuan broken stone, ground cotton root, cow-pulling stone, Cudrania tricuspidata root, yellow snake, mountain yellow dustpan, iron hedge root, Huanglong peeling, acanthopanax giraldii, mountain astragalus root, wild astragalus root, nine-layer bark and thousand-layer bark, and the sources are the roots of Moraceae plants, such as acanthopanax giraldii or Cudrania tricuspidata. Harvesting and storage: it can be harvested all year round, digging out roots, removing soil and fibrous roots, and drying in the sun; Or wash, slice and dry while fresh. Can also be used sparingly. Characteristics are cylindrical, with different lengths and diameters of1.5-2.5cm; Or has been cut into round thick pieces. The outer skin is yellow or orange-red, with obvious longitudinal wrinkles and a few fibrous root marks. The cork is thin and easy to fall off. Hard texture, not easy to break, thin section skin, gray-yellow, tough fiber, wood accounted for the vast majority. Yellow, woody, with obvious catheter holes, and some central parts have small pith. Slight breath, light taste. Processed, washed, moistened, sliced obliquely and dried. Light in taste; Slightly bitter; The function of cooling is to dispel wind and dredge collaterals; Clearing heat and removing dampness; Detoxification and swelling reduction. Rheumatalgia; Injury from falls; Huangju; Mumps; Tuberculosis; Gastric and duodenal ulcers; Leaching turbidity; Bulge; Amenorrhea; Strain and hemoptysis; Usage and dosage of sores and carbuncles are taken orally: decoction, 9 ~ 30g, fresh ones can be taken to1209; Or soak in wine. External use: appropriate amount, tamping.