Dekopon Tangerines are a Japanese hybrid that is the sweetest ever to be introduced to the US. Very low in acid, Dekopon is aka Sumo Mandarins or Shiranul. Very low in acid, Dekopon is aka Sumo Mandarins or Shiranul.
The Fairchild tangerine is a cross between a Clementine mandarin and an Orlando tangelo. The skin is thin with a deep orange color, is somewhat pebbly, and doesn't peel as easily as some other tangerines.