1, the mature season is different. Every spring festival matures, and oranges ripen every autumn.

2. The shapes of trees are different. Orange trees have many branches, the branches are slightly enlarged or drooping, and there are few thorns. Citrus is several meters high and has long thorns on its stems.

3. Oranges from different producing areas are blessed in the south and accumulated in the north. Oranges are born in the south, such as Guangdong and Fujian, and oranges are born in the north.

4, oranges with different pulp are petal by petal, and the skin is generally thin and easy to peel off. The orange words are thick and cracked inside, but they are difficult to break into pieces. Most of them are eaten with knives.

5, evergreen trees, the fruit is called "orange", juicy, sweet and sour, edible, seeds, leaves and skins can be used as medicine.

The characteristics of oranges:

This tree is several meters high and has thorns on its stem. It blooms in early summer, bears fruit in June and July, and does not mature and turn yellow until November and December. After peeling, it is divided into several petals, each with a core, and the inner petal is sweet and delicious, which is a precious product in fruit. The seeds are oval, white, with sharp ends, several to dozens or none, and the flowering period is March-April.

Small orange evergreen trees or shrubs, 3-4 meters high, with thin spiny branches. Leaves alternate, petiole is 0.5- 1.5 cm long, wings are narrow, the top is articulated, leaves are lanceolate or oval, length is 4-1cm, width is 1.5-4 cm, apex is slightly concave, base is wedge-shaped, whole or undulate, and it has no shape. Flowers solitary or clustered in branches or axils, calyx cup-shaped, 5-lobed, petals 5, white or reddish, stamens 15-30, different lengths, filaments usually 3-5 in a group.