A kind of citrus, because its taste is sweet like honey, it is called tangerine. The main components of tangerine are water, protein, fat, carbohydrate, calories, crude fiber, ash, calcium, phosphorus, iron, vitamins, carotene, thiamine, riboflavin, niacin, ascorbic acid, potassium, sodium, Magnesium, etc.

It is located in the south of the southern slope of the Qinling Mountains, the southern slopes of the Funiu Mountain and the southern Dabie Mountains, southeast to Taiwan, south to Hainan Island, and southwest to the lower elevation of southeastern Tibet. Widely cultivated, rarely half wild. The northern part of the country is planted with oranges, mainly red orange and orange. The citrus and tangerine produced in China have many varieties and can be called the crown of the world.

Branches are numerous, branches are extended or slightly sagged, and thorns are less. Single compound leaves, the leaves are usually narrow, or only traces, the leaves are lanceolate, elliptic or broadly ovate, the size varies greatly, the top often has a notch, and the midrib is branched from the base to the vicinity of the notch. At least the upper half of the leaf margin usually has blunt or round cracked teeth, rarely the entire edge. Flowers solitary or 2-3-loculed; calyx irregularly 5--3 lobed; petals usually ca. 1.5 cm long; stamens 20-25, sessate, stigulate. Fruit-shaped, usually oblate to nearly spherical, the skin is very thin and smooth, or thick and rough, pale yellow, vermilion or deep red, very easy or slightly easy to peel, orange or many less, in the form of a mesh Easy to separate, usually soft, the center column is large and often empty, thin and full, the scoop 7-14 flaps, more rare, the wall is thin or slightly thick, soft or rather tough, the juice cells are usually spindle-shaped, short and inflated, Slightly slender, fleshy or sweet, or bitter, or with a specific odor; seeds more or less, sparsely seeded, usually ovate, apically narrow, basally rounded, cotyledons dark green, light green or subulate In milky white, it is purple, multi-embryo, and has few single embryos.