Imperata cylindrica beauv.var.major (Nees) C.E. Hubb.is the dried rhizome of grass family Imperata cylindrica beauv.var.major. Digging in spring and autumn, washing, drying in the sun, removing fibrous roots and membranous leaf sheaths, and bundling them into small bundles. The surface is yellowish white or light yellow, slightly shiny, with longitudinal wrinkles, obvious nodes, slightly protruding, and the length of nodes varies, usually1.5 ~ 3 cm.
Related compatibility of cogongrass rhizome
1, bamboo and wood into the meat: cogongrass rhizome burnt powder, pig fat and coated with it. It is also good for the wind to become swollen. (Behind the Elbow)
2, vomiting blood: hold it with cogongrass rhizome and decoct it with water. ("Golden Wings")
3, urine bleeding: Maogen decoction, frequent drinking is better. ("Talking about Wild Wengfang")
4, the solution of alcohol poisoning, fear of rotten five internal organs: Maogen juice, drink a liter. (Qian Jin Fang)
Reference to the above content: Baidu Encyclopedia-cogongrass rhizome