The appearance of Rhizoma Osmundae is obovate, slightly curved, the upper end is blunt or truncated, the lower end is sharp, and the underground rhizome is oblique. Some are cut in half longitudinally, about 7 ~ 20 cm long and 4 ~ 8 cm in diameter. The surface is densely packed with neatly arranged petiole residues and scales, with curved fibrous roots, brown to dark brown.
Petiole residue is oblate, 3 ~ 5 cm long, 0.5 ~ 65438 0.0 cm in diameter, with longitudinal ridges on the surface; The texture is hard and not easy to break, the cross section is slightly flat brown, and there are 5 ~ 13 yellow-white vascular bundles in a circle. There are often three fibrous roots on the outside of each petiole residue, and the scales are strip-lanceolate, complete and often fall off. The smell is unique, and the taste is light and slightly astringent at first, and then bitter and slightly spicy.
Extended data
The efficacy and function of Guanzhong
1, anticancer
Guanzhong also has a certain anti-cancer effect. It has obvious anticancer activity and good inhibitory effect on cancer cells. It can inhibit cancer cells without harming hematopoietic cells.
2. Insect repellent
It can repel roundworms and leeches, especially tapeworms. Not only that, but also has a good relief effect on abdominal pain caused by insect accumulation.
Step 3 clear away heat and toxic materials
Rhizoma Osmundae has the effects of clearing away heat and toxic materials, relieving discomfort caused by wind-heat cold, sore throat and other diseases, and preventing infectious diseases such as mumps.
4. Relieve hemoptysis
Rhizoma Osmundae has the effects of relieving cough and hemoptysis. It can also clear pneumonia and eliminate inflammation to some extent. When you take it with Su Shui, you will get better after taking it for many times.
Baidu encyclopedia-Guanzhong