"Chuanjianghuang Chuanjianghuang is produced in areas with less frost and snow on plains, hills, and low mountains in areas such as Qianwei, Muchuan, and Yibin in southern Sichuan, as well as in the Jinma River and Yangma River basins such as Chongzhou and Shuangliu." 1 Scope 2 Normative citation Document 3 Terms and definitions 4 Origin and form 4.1 Origin 4.2 Morphological characteristics 5 Historical evolution 5.1 Variety evolution 5.2 Origin evolution 6 Authentic area and habitat characteristics 6.1 Authentic area 6.2 Habitat characteristics 7 Quality characteristics 7.1 Quality requirements 7.2 Characteristics