Blueberry leaves

Blueberry leaves

(pharmacology of traditional Chinese Medicine)

[synonym] bear fruit leaf (Xinjiang Chinese herbal medicine manual).

[source] the leaves of Vaccinium spp.

[plant morphology] blueberry, also known as Wenpu (Sheng Jing Tong Zhi), red bean, tooth pimple.

Evergreen dwarf shrubs, 10-12 cm high. Stem erect, branchlets fine, grayish brown. Single leaf alternate, leathery, elliptic or obovate, 1-2 cm long, 6-10 mm wide, apex obtuse, base cuneate, entire or nearly entire, leaf margin hairy, dark green above, light green below, glandular dots; petiole 0.5-3 mm long, white hair, short raceme, flowers several; calyx short campanulate, 4-lobed; corolla campanulate, 4-6 mm long, white or pinkish, lobes 4-lobed , broadly ovate; stamens 8, filaments hairy; style filiform, beyond corolla. Berry nearly globose, ripe orange red, diameter 5-7 mm. The flowering period is from June to July. The fruiting period is August.

It grows under coniferous forests or shrubs in high mountains. Distributed in Jilin, Heilongjiang, Inner Mongolia, Xinjiang and other places.

The mature fruit of this plant (blueberry fruit) is also used for medicine. See special section for details.

[collection] in June, the leaves are picked, dried and stored in a dry place.

[chemical constituents] it contains ursolic acid, sorboside, salicin, 4-hydroxyphenyl, β - Gentiobioside, Hyperoside, ruixuoside and quercetin 3-d-glucose-l-rhamnoside. 2-o-caffeinoyl arbutin and Isoquercitrin. It also contains 7.9-8.2% pyrocatechol tannins, including d-catechin, l-epicatechin and d-non catechin.

[pharmacological action] the 5% extract of dried whole grass has resistance hormone effect on male frog, which is not caused by tannin. The extract or Decoction of decubitus can be used as diuretic (for kidney stones), and can be used for rheumatism, gout, fruit can be used for vitamin deficiency.

[nature and taste] "Xinjiang Chinese herbal medicine manual:" bitter and astringent in taste, warm in nature, with small poison. "

[functions and indications] ① pharmacology of Chinese medicine: "it is used for gonorrhea, urethritis, cystitis and acute rickets". "

② "Xinjiang Chinese herbal medicine manual": "can diuretic detoxification. "

[usage and dosage] oral: decoction, 0.5 ~ 2 yuan.

[selected formula] it is used to treat urethritis and cystitis, and it can be taken by decocting the fruits and leaves of Erqian in water. (Xinjiang Chinese herbal medicine manual)