What is "nanfengmiju"

The Nanfengmiju (Citrus reticulata, corresponding Chinese: 南丰蜜桔(simplified), 南豐蜜桔(traditional)) is a rare non-hybrid citrus.

A small, sweet fruit, it is one of the most widely cultivated varieties of mandarin in China. It is thought to be a descendant of the Tang and Song Dynasty ruju, and related to the Japanese kishu, which is now also grown and sold in North America.