... impurities. Schisandra distributed in northeast, north, and Gansu, Ningxia, Anhui, Jiangxi, Henan, Hunan, Sichuan, Guizhou, sphenanthera distributed in Shanxi, Shaanxi, Gansu ... , Anhui, Zhejiang, Jiangxi, Fujian, Henan, Hubei, Hunan, Sichuan , Guizhou, Yunnan. Acid of taste ...