Shiranui from Japan

Shiranui (Citrus Unshiu/Aurantium/Reticulata)

A variety created by cross-fertilization of the Kiyomi and Ponkan.
Even among similar citrus varieties, the area around the protruding calyx is distinctive. It has a high sugar content and lots of juice.
It is loved for being easy to eat because the skin is soft enough to peel by hand.
The main growing regions are Kumamoto Prefecture and Ehime Prefecture, and the fruit is in season from February to April.