Koji orange, also known as the smooth-fruited orange, is a Citrus species native to Japan. The specific epithet comes from the Greek λεῖος leîos 'smooth', and καρπός karpós 'fruit'. It is a taxonomica
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The kishu mikan, from Japanese Kishū mikan, is a hybrid variety of mikan, or mandarin orange, found in Southern China and also grown in Japan.
Koji orange
…by Chozaburo Tanaka. Once believed to be a mutation of the koji orange, it has been revealed that it is a hybrid between koji (pollen parent) and kishu (seed parent). In Chinese, it is called 駿河柑子 (jun he gan zi) and is called スルガユコウ (suruga yukō) and 駿河柚柑 (suruga yuzukan) in Japanese. Japanese citrus…
Mandarins (actually Arida mandarins, not kishu mandarins) being grown on the steep hillsides above the city of Arida.
Kishu mandarin trees shading the grave of Kinokuniya Bunzaemon, a merchant who exported kishus to Edo.
~2m/7ft-tall potted mandarin tree, possibly a kishu mandarin. Potted kishu trees do not grow much bigger than this.
Fruiting mandarin, possibly a kishu mandarin, from the size, in Heidelberg, Germany. 2010