Satsuma

SatsumaIt is commonly called unshuu in Japan, satsuma in the UK, naartjie in Africa and mandarin or tangerine in Canada. In the United States, satsumas are most frequently marketed as tangerines. It is less commonly called satsuma tangerine, satsuma orange, or satsuma mandarin. / sat-soo-muh/ .n. is a variety of tangerine with a loose skin. 
It is named after the former Satsuma Province of Japan.  In the United Kingdom it is often associated with Christmas.

 Footnotes 

 Other websites 

 The Satsuma Tangerine - University of Florida 
 PLANTanswers - Texas Cooperative Extension

Mikan ('Citrus unshiu Marc.)