Ma Yin Hua

NameMa Yin Hua (Rhododendri Ovati Radix)SourcesThe drug is the dried root of Rhododendron ovatum Planch. (Family Ericaceae), growing on mountain slopes in forests, and distributed chiefly in Fujian, Jiangxi, Jiangsu, Zhejiang, Shandong and Hunan.ConstituentsLeaf contains quercetin, myroetin, dihydro