Fructus Aurantii Immaturus is also known as Fructus Aurantii Immaturus, Tielizhai, Prunus mume, Prunus mume, Prunus mume, Prunus mume and Prunus mume. It is a small tree of Rutaceae with an umbrella-shaped or round crown. Branches are spiny, flowers are solitary or axillary in pairs, and the flower diameter is 3.5-8 cm, usually white. The fruit is nearly spherical or pear-shaped, the juice stalk is short, and the pulp is very bitter and astringent. Seeds broadly ovoid, milky white or milky yellow. The flowering period is from May to June, and the fruiting period is10-165438+1October.

morphological character

Citrus grandis is a small tree with a plant height of 1-5 meters and an umbrella-shaped or round crown.

The branches are green, the tender branches are flat, with longitudinal edges, the thorns are 4 cm long, the thorns are reddish brown, and the base is flat. Petiole has long and narrow leaflets, usually 3 fingers, rarely 4-5 leaflets, or hybrid has 2 leaflets or a single leaflet besides 3 leaflets. The leaflets are equal in length or larger in the middle, 2-5 cm long and 1-3 cm wide, symmetrical or asymmetrical on both sides, with thin blunt teeth or entire leaves, and fine hairs on the midvein of young leaves.

Flowers solitary or axillary in pairs. Generally, leaves are opened first, and there are also leaves before flowers, complete flowers and incomplete flowers. The stamen of the latter develops and the pistil shrinks. Flowers are large and small, with a diameter of 3.5-8 cm. Sepals 5-7 mm long; Petals are white, spoon-shaped, 1.5-3 cm long; Stamens are usually 20, and filaments vary in length.

The fruit is nearly spherical or pear-shaped, with great differences in size, generally 3-4.5 cm in longitudinal diameter and 3.5-6 cm in transverse diameter. The top of the fruit is slightly concave, with rings, the skin is dark yellow and rough, with or without rings, the skin is smooth, the oil cells are small and dense, the stone is full, there are 6-8 ladle sacs, the juice cells are short-stalked, the pulp contains sticky axils, and there is a little citron. Seeds broadly ovoid, milky white or milky yellow, with sticky axils, smooth or inconspicuous veinlets, 9- 12 mm long. The flowering period is from May to June, and the fruiting period is10-165438+1October.

Medicinal value

Fructus Aurantii is warm, bitter, pungent and nontoxic. Soothes the liver, relieves pain, breaks qi, dissipates stagnation, promotes digestion, resolves phlegm and relieves cough. Traditional Chinese medicine is used to treat various pains such as liver, stomach gas and hernia. The combination of Fructus Aurantii Immaturus and other traditional Chinese medicines is effective in treating uterine prolapse and proctoptosis. Intravenous injection of Fructus Aurantii preparation has certain curative effect on infectious poisoning, allergic reaction and shock caused by drug poisoning.