Yes Gannan navel orange refers to navel orange planted in Gannan area, not a unique navel orange variety. In other words, all navel oranges planted and produced in this area are called "Gannan navel oranges". Gannan navel orange is the characteristic hometown of navel orange in China, and the best area of Gannan navel orange hometown is Ganzhou Ruijin, so Ruijin navel orange is Gannan navel orange.