When a specific variety is grown in multiple prefectures, as a general rule it's allocated to the prefecture in which it was originated (e.g., Yamada nishiki, which is designated as a brand variety of growing districts in 28 prefectures, is allocated to its place of origin, Hyogo Prefecture).
複数の都道府県で栽培されている場合には、原則として原産地都道府県の項に配した（例28府県で産地品種銘柄に指定されている山田錦は原産地の兵庫県の項に）。