The tree is vigorous and grows upright until the onset of fruit. The thorns are initially large and robust but become smaller with age, and fruit-bearing branches are thornless. The fruit ripens from January to March and weighs on average 0.5 pounds (230 grams) and is oblate in shape. The rind is orange in color and is mostly smooth but slightly bumpy; the flesh is orange to red-orange in color. It peels easily and puffing is rare. It is typically a seedless fruit, although when pollinated by surrounding cultivars, may contain a few seeds. It is a firm fruit and is said to have a sweet, rich flavor. The sugar content rating is at least 13 °Bx and the citric acid content is 1%. The fruit cracks easily in summer and autumn.[1]
^ abcShigematsu, Y. (Ehime-ken Fruit Tree Experiment Station; Kita, K.; Yakushiji, H.; Ishikawa, K.; Inoue, H.; Nakata, H. (2008). "The new citrus cultivar 'Kanpei'". Bulletin of Ehime Fruit Tree Experiment Station (Japan) (in Japanese). Retrieved 16 February 2021.
