Chuanshanlong

Dioscorea nipponica Makino, also known as Dioscorea nipponica Makino, Wild Yam, Chuanlumbricus, Ditonggu and Dragonfly, is a pure natural wild medicinal material produced in Xiaoxing 'an Mountains. At present, the market prospect of Dioscorea nipponica Makino is very considerable. Dioscorea nipponica Makino is an important raw material for synthesizing various types of contraceptives and steroid hormone drugs. Its rhizome contains diosgenin, which is an important starting material for the synthesis of steroid hormones because its structure is similar to that of steroid hormones. Most of the steroid hormone drugs in the world are synthesized from diosgenin, while almost all of them are synthesized from diosgenin in China. In recent years, due to the rapid development of synthetic steroid hormones at home and abroad, the demand for Dioscorea nipponica Makino has also increased greatly. Alias: wild yam, string earthworm, ground keel, and dragon. Source "is the rhizome of DioscoreanipponicaMakino of Dioscoreaceae. The plant morphology is perennial twining with herbaceous vines, the roots are transverse, the cork is flaky and the section is yellow. Stem left-handed, glabrous. Leaves alternate, palm-shaped and heart-shaped, changing greatly, 8 ~ 15cm long and 7 ~ 13cm wide, with triangular shallow, middle or deep fissures at the edges, and the terminal lobes are small and entire. Flowers unisexual, spikes axillary; Male flowers sessile, perianth 6-lobed, stamens 6; Female flowers often solitary, perianth 6-lobed. Capsule obovate-elliptic with 3 broad wings. 2 seeds per locule, born at the base of each locule, surrounded by film-like wings with unequal width. The flowering period is from June to August, and the fruit period is from August to October. Born on the edge of hillside forest, under shrub and beside ditch. Location: Liaoning, Jilin, Heilongjiang, Hebei, Inner Mongolia, Shanxi and Shaanxi. Picking in spring and autumn, digging roots, removing fibrous roots and outer skin (cork), and drying in the sun. The rhizome is cylindrical, quasi-cylindrical, slightly curved, with finger-like branches, with different lengths and diameters of 0.3 ~ 1.5 cm. The surface is brown or yellow, and there are scattered whisker-like fine roots or broken marks on both sides. Hard, flat section, white or white-like, powdery. Slight gas, bitter taste. Chemical constituents mainly contain dioscin and other steroidal saponins. The taste is warm, sweet and bitter. Functions: relaxing muscles and tendons, promoting blood circulation, relieving cough and resolving phlegm, expelling wind and relieving pain. Used for lumbago and leg pain, numbness of bones and muscles, traumatic injury, waist flashing, cough and wheezing, and tracheitis.
Reprinted with attribution： https://cnlocality.com/(Chinese Specialty Products)