Introduction:

Also known as citron and perfume lemon, it is similar in appearance to lemon and belongs to the genus Citrus in Rutaceae. Citrus is one of the essential plants for Jews to celebrate tent festival. Sexual temperature is non-toxic. Regulating qi and descending adverse flow; Broaden the chest and resolve phlegm. Citrus, also known as citron and perfume lemon, is similar in appearance to lemon and grapefruit and belongs to the genus Citrus in Rutaceae.

It is the mature fruit of Rutaceae fragrant garden, mainly produced in China, Jiangsu, Anhui, Sichuan and other provinces. Citrus is also one of the necessary plants for Jews to celebrate tent festival. Evergreen shrubs or small trees; Having short hard spines; Rectangular or obovate leaves with serrated edges and no wings; It blooms many times a year, with large purple flowers and lasting style.

The fruit is oval or rectangular, with milky white protrusions at the top, thick and fragrant peel, lemon yellow when mature and not easy to peel off; The fruit ripens in early winter; The pulp capsule is small, about 10 petal, with yellow-white pulp, little juice and slightly bitter and sour taste. Explain the name, citron, bergamot.

Irregular branched shrubs or small trees. The new buds, buds and buds are dark purple, and the stems and branches are prickly, with thorns as long as 4 cm. Simple leaf, rare simple compound leaf, jointed and wingless; Petiole is short, leaf blade is ovate or ovoid, 6- 12 cm long and 3-6 cm wide, or larger, with rounded or blunt tip, sparse and short tip, and shallow blunt teeth on the leaf margin.

Racemes have 12 flowers, sometimes with axillary single flowers; Flowers are bisexual and tend to be unisexual, and then the pistil degenerates; 5 petals, 1.5-2 cm long; 30-50 stamens; The ovary is cylindrical, the style is thick and long, the stigma is head-shaped, the fruit is oval, nearly round or spindle-shaped, and the two ends are narrow, weighing 2000 grams.

The pericarp is yellowish, rough, thick or thin, difficult to peel, the endothelium is white or slightly yellow, cotton-like, soft, with 10- 15 petals, the pulp is colorless, nearly transparent or light milky yellow, crisp, sour or slightly sweet, and fragrant; Seeds are small and smooth, cotyledons are milky white, multi-embryo or single-embryo. The flowering period is from April to May, and the fruiting period is10-165438+10.