... have a clear vertical wrinkles and the fibrous scar, cork is not divisible Department has scarred brown, occasionally horizontal lenticels. ... firm, and the powder foot, clean the surface of who is better. Main products of Zhejiang, Anhui, Sichuan and other places. ... Root containing paeoniflorin, Peony phenol, peony flower glycosides, benzoic acid is about 1.07%, volatile oil, fatty oil, resin, tannins, ...