Small evergreen trees or shrubs, about 3 meters high. Branchlets are thinner, glabrous and usually spiny. Leaves ovate-lanceolate, 4 to 8 cm long. Flowers yellow and white, solitary or clustered leaf axils. The fruit is oblate, 5 to 7 cm in diameter, orange-yellow or orange-red, with thin peel and easy peeling. It blooms in spring and 10 ~ 12 matures.

The shape of an orange:

Oranges are usually oblate to nearly spherical, with thin and smooth skin, or thick and rough skin, pale yellow, vermilion or crimson, which is easy or slightly easy to peel off. Orange mesh is more or less reticulate, easy to separate, usually soft, with a large central column and often empty. Sparse and full, floating sac 7 to 14 petals, sparse and numerous.

The capsule wall is thin or slightly thick, soft or tough, the flesh is sour or sweet, or has a special smell, and there are more or less seeds. Usually oval, narrow at the top, round at the base, dark green cotyledons, occasionally light green or nearly milky white, with many embryos and few single embryos.

The role of oranges:

1. Oranges have the effects of moistening lung, relieving cough, resolving phlegm and quenching thirst.

2, orange peel can be beautiful.

3, orange core tastes bitter and non-toxic, and has the effect of dispersing stagnation, regulating qi and relieving pain.

4, sweet, warm, into the lungs and stomach; Has the effects of stimulating appetite, regulating qi, quenching thirst and moistening lung.

The role of orange peel:

1, orange peel is called Chenpi, which has the functions of invigorating qi, eliminating dampness, resolving phlegm and relieving cough, strengthening spleen and regulating stomach.

2. Hesperidin in orange peel can enhance the toughness of capillaries, lower blood pressure and dilate the coronary artery of the heart. Therefore, it can be said that oranges are food to prevent coronary heart disease and arteriosclerosis.

Extended data:

1, avoid eating oranges when taking medicine.

Oranges are rich in fruit acid and vitamin C. When taking vitamin K, sulfonamides, spironolactone, aminopterin and potassium supplements, oranges should be avoided.

2, avoid fresh orange peel to make tea.

Most picked oranges are soaked with preservatives before they are put on the market. Preservatives are chemical agents, and soaked oranges have no effect on pulp, but the residual preservatives on orange peel are difficult to wash off with clear water. If such orange peel is soaked instead of drinking tea, it will be harmful to health.

Eating too many oranges will lead to stones.

Oranges are rich in water and nutrients, and contain a lot of more than ten kinds of nutrients such as vitamin C, citric acid and glucose. Proper consumption can increase appetite, but improper consumption is useless.

Eating too many oranges will lead to getting angry.

Oranges are warm and easy to get angry when eaten too much, and symptoms such as aphtha, dry mouth, dry throat and constipation may occur.

Children should not eat more oranges.

If oranges are rich in carotene, if they are eaten in large quantities, about 500 grams a day for two consecutive months, there will be high carotene anemia, which is characterized by yellowing of hands and feet and gradually infecting the whole body, which may be accompanied by nausea, vomiting, loss of appetite, general fatigue and other symptoms, sometimes easily confused with hepatitis.

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