What does Rehmannia glutinosa look like?

Because its underground roots are yellow and white, it is named Rehmannia glutinosa. Fresh Rehmannia glutinosa is spindle-shaped or strip-shaped, with thin skin, reddish yellow surface, curved longitudinal wrinkles, bud marks, 7L-shaped protrusions and irregular marks. Fleshy, easily broken, yellow-white peel, orange-yellow oil spots, yellow-white wood, and radially arranged ducts. Slight gas, slightly sweet and slightly bitter.

Rehmannia glutinosa is mostly irregular block or rectangle, with swollen middle and slightly thinner ends, some small and long, slightly flat and twisted, with brown-black or brown-gray surface, extremely shrunk and irregular cross-sectional curve. Weight, soft and tough, not easy to break, dark brown or dark black, shiny and sticky. Slight breath, slightly sweet taste.

Extended data

Rehmannia glutinosa, the scientific name of traditional Chinese medicine. Fresh or dried root tuber of Rehmannia glutinosa (Scrophulariaceae). Excavate in autumn, remove reed head, fibrous root and sediment, and use it fresh or after processing. Divided into fresh rehmannia root, dried rehmannia root and prepared rehmannia root. Rehmannia glutinosa is mainly distributed in Hubei, Zhejiang, Taiwan Province, Sichuan, Southwest, Guangxi and other provinces. It is cultivated all over China and abroad.

Fresh rehmannia glutinosa becomes dried rehmannia glutinosa after drying in the sun. At this time, take dried Rehmannia glutinosa, remove impurities, soak it in water, wash it, moisten it, cut it into thick slices, and dry it in the sun, which is the raw Rehmannia glutinosa, which is cold in nature and good at clearing heat and cooling blood, nourishing yin and promoting fluid production. Rehmannia glutinosa can continue to be processed after it arrives. Take the washed Radix Rehmanniae, add yellow wine, mix well, put it in a jar or a suitable container, seal it, and steam it in water until the wine is completely absorbed, showing dark luster and turning sweet.

In clinical application, Radix Rehmanniae and Radix Rehmanniae have their own advantages. As far as Radix Rehmanniae is concerned, the application of Radix Rehmanniae can be seen in bleeding due to blood heat, fever due to yin deficiency, constipation due to exhaustion of body fluid, polydipsia and polydipsia, internal heat due to bone steaming, and heat toxic macula. Use famous prescriptions, such as Digupi powder and Digupi, to treat epistaxis; Used together with Ophiopogon japonicus in Zengye Decoction, it has the function of moistening the intestines and relaxing bowels, and can be used to treat yin deficiency and excessive fire.

Baidu encyclopedia-rehmannia glutinosa