Mahonia bealei, also known as Beale's barberry, or Oregon grape, is an evergreen shrub native to mainland China (Anhui, Fujian, Guangdong, Guangxi, Henan, Hubei, Hunan, Jiangsu, Jiangxi, Shaanxi, Sichuan, Zhejiang). The species has sometimes been regarded as the same species as Mahonia japonica, native to Taiwan, but the two differ consistently in certain floral and leaf characters. Both species are widely cultivated in many countries as ornamentals. Mahonia bealei has reportedly escaped cultivation ...