Root wood blue

[alias] mountain broom, Yamahana Ko [source] legume Indigofera plant flowers and blue Indigofera Kirilowii Maxim. ex Palibin, the roots are used medicinally. Spring and autumn can be collected, washed and dried. [] taste bitter, cold. [indications] Qingrejiedu, swelling and pain, laxative. For sore throat, lung heat cough, jaundice, hot junction constipation; external use in treating hemorrhoid gall, snake bite. [usage] 1 to 3 money; external use, root powder coating, or fresh root juice on to the skin. [from] "the compilation of Chinese herbal medicine" http://chinese-herbal-medicines-directory.blogspot.hk/