1、 Blade difference

Sweet orange leaves are usually ovate or ovate elliptic, rarely lanceolate, about 6-10 cm long and 3-5 cm wide. The leaves of navel orange are oval, slightly smaller than the former, about 4-8 cm long and 2-4 cm wide

2、 Fruit difference

The sweet orange fruit is round, oval or oblate, and the color is orange yellow to orange red. The peel is difficult to peel. The ladle capsule has 9-12 small petals, the pulp color is orange red or light yellow, and there are seeds. As the name suggests, the navel orange has a navel on the top of the fruit, and the whole navel is wrapped in the peel. At the top, there is a closed navel exposed after the style falls off. In addition to the large capsule valve, there is a small capsule valve developed from the secondary carpel in the fruit. Compared with the former, it is easier to peel and divide the peel. There is no nucleus in the pulp