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Da Huang

Factory directly wholesale Da Huang, Da Huang Mu Dan Tang

What is Da Huang?

Da Huang is the collective name for a variety of perennial plants in the genus Polygonum and is also the name of the Chinese herb. In Chinese regional literature, the term "rhubarb" often refers to horsetail rhubarb. In China, radix rhizoma rhei is mainly used for medicinal purposes, but in Europe and the Middle East, their rhubarb often refers to several other edible species of the genus Rhubarb, with red stems, fragrant, bitter, and slightly astringent taste, sticky teeth, and a gritty feel when chewed. The stems are harvested in late autumn before the leaves wither or the following spring before sprouting. Remove the thin roots, scrape off the outer skin, cut the flaps or segments, string them into bunches, and dry them or dry them directly - Chinese herbal medicine rhubarb has the effect of attacking stagnation, clearing damp heat, dipping fire, cooling blood, dispelling blood stasis and detoxifying.

Da Huang herb is a traditional Chinese herb with unique efficacy and abundant resources, mainly distributed in sub-temperate and subtropical alpine mountainous areas, with its authentic production areas in Gansu, Sichuan, Tibet, and other high-altitude regions of China. Rhubarb is a tall perennial herb that grows on forest edges or grassy slopes in the mountains, wild or cultivated, with stout rhizomes.

Rhubarb is used to treat stagnation in the stomach and intestines, damp-heat diarrhea and dysentery, blood-heat bleeding, sore throat, carbuncles and furuncles, blood stasis, and damp-heat jaundice.

Morphological characteristics of Da Huang

Da Huang is a tall perennial herb. It grows in mountainous forest margins or grassy slopes, wild or cultivated, with stout rhizomes. The stem is erect, about 2m high, hollow, smooth, and glabrous. The basal leaves are large, with stout fleshy long stalks, about as long as the blade; the blade is broadly cordate or suborbicular, up to 40cm in diameter or more, 3-7 palmately parted, each lobe often pinnately divided again, the upper flow of small papillate protrusions, pilose below; the stem leaves are smaller, with short stalks; the stipule sheaths are cylindrical, densely pubescent. Inflorescences large paniculate, terminal; pedicels slender, jointed in lower and middle parts. Flowers purplish red or reddish-purple; tepals 6, ca. 1.5 mm, in 2 whorls; stamens 9; styles 3. Achenes 3-angled, winged along the angles, apically retuse, base subcordate, dark brown, flowering June-July, fr.

The main chemical constituents of rhubarb include bound and free anthraquinones/anthraquinones, stilbene, phenylbutazone, chromogenic ketones, flavonoids, and tannins, which are used to treat constipation, blood fever, epistaxis, red eyes, menstrual stasis, postpartum stasis, and other conditions. Literature research shows that the combined anthraquinones/anthraquinones in rhubarb have certain laxative effects, the free anthraquinones have certain heat-clearing effects and dampness-reducing effects, the tannins have certain cooling effects on the blood, and the flavonoids have certain blood-activating effects. With the continuous research on rhubarb, modern pharmacological studies have shown that rhubarb also has anti-tumor, anti-bacterial, anti-viral, anti-diabetic, cardiovascular protection, and other activities, in addition, it also shows the protection of the brain and heart, the regulation of estrogen levels, improve memory function, weaken the immune rejection reaction and other effects.

Growth environment of Da Huang

Da Huang likes a cool climate, cold hardy, and avoids high temperatures. It is wild in the high mountainous areas of northwest and southwest China at an altitude of about 2000m. Domestic species are mostly found in areas above 1400m. The minimum temperature in winter is below -10℃, the temperature in summer does not exceed 30℃, the frost-free period is 150-180d, and the annual rainfall is about 500-1000mm. The soil set requirements are strict, generally deep, humus-rich, well-drained loam or sandy loam soil is best, clay acidic soil and low-lying waterlogged areas should not be planted. Avoid continuous crops, need to be planted after 4 to 5 years.

Cultivation techniques of Da Huang

Da Huang is propagated by seeds, but also by shoots (buds on the rhizome of the mother plant). Seed propagation: rhubarb varieties are prone to hybridization and mutation, should choose a pure variety of three-year-old plants as seed plants, in mid to late July when most of the seeds become dark brown, cut back with stems, shade dry, and threshing. Ready to use. Use seedling transplanting, direct seeding method two. Divided into spring and autumn sowing, generally in the autumn sowing is good. Seedlings can be sown in strips or sowing. Strip sowers lateral ditch, ditch distance 25-30cm, sowing width 10cm, 3-5cm deep, the amount of 30-75kg per 1hm2. sowing is the seed evenly scattered in the border, thin covered fine soil, and cover grass. After germination, the grass is removed in the afternoon on a cloudy or sunny day. After the seedlings come out, weed and water in time. If the seedlings are too dense, we can combine them with the first weeding to interrupt the seedlings. Seedling chasing Apply thin human and animal manure and urine 2-3 times. Cover the seedlings with soil, grass, or fallen leaves in early winter and remove the mulch when they sprout the following year. Transplant in March-April of the second year for spring sowers and in September-October of the second year for fall sowers. Choose seedlings with a middle finger thickness, cut off the lateral roots and the slender part of the main root, and open holes at a distance of 70cm between rows and 50cm between plants, with a hole depth of about 30cm, and plant one seedling per hole. Spring transplanting cover soil should be shallow so that the seedling leaves are exposed to the ground to facilitate growth; autumn transplanting cover soil should be thick, and should be high out of the bud mouth 5 ~ 7cm, so as not to suffer frost damage in winter. Direct sowing method, according to the row spacing 60 ~ 80cm, plant spacing 50 ~ 70cm hole sowing, hole depth of about 3cm, each hole sowing 5 ~ 6 seeds, cover soil about 2cm. For each 1hm2 with 22.5-30kg of seeds, seedling management and seedling transplanting method is the same. The seedlings will be separated 1 to 2 times, and the seedlings will be set at 10 to 15cm high. The seedlings are set at a height of 10-15cm, with 1 plant per hole. Propagation of offspring: When harvesting rhubarb, remove the strong and large offspring from the rhizome of the mother plant, dig a hole at a distance of 55cmX55cm, put one offspring in each hole, with the eyes of the bud upwards, cover the soil with 6-7cm, and step firmly. When planting, apply grass ash to the cutting wound to prevent decay.

Da Huang benefits

Da Huang herb

Constipation with stagnation

Da Huang has a strong laxative effect and can cleanse the intestines and stomach, pushing the old to the new, for the treatment of stagnant constipation of the important medicine. Also because of its bitter cold and sinking, good at draining heat, so actual heat constipation is particularly suitable.

Blood-heat epistaxis, red eyes, and swollen throat

Dahuang is bitter and can make the fire of inflammation go down, and has the function of clearing away heat and fire, cooling blood, and stopping bleeding.

Heat poison sores and burns

Da Huang can be taken internally and used externally. Internally, it can clear heat and detoxify the toxin, and by its laxative effect, it can make the heat and toxin drain. Externally, it can remove fire and toxins, cool the blood and subdue swelling.

Evidence of Blood Stasis

Da Huang has a good effect of activating blood circulation and removing blood stasis, which can not only lower blood stasis, but also clear heat stasis, which is commonly used in the treatment of blood stasis.

Damp-heat dysentery, jaundice, gonorrhea

Da Huang herb has the function of diarrhea and relaxation of the bowels, leading damp-heat to go out, so it can be used to treat the evidence of damp-heat accumulation.

Application of Da Huang


Da Huang Mu Dan Tang

Da Huang Mu Dan Pi Tang

Da Huang Mu Dan Tang is the name of a traditional Chinese medicine formula. It is a diaphoretic agent, cold down, with the effect of dispelling heat and breaking up knots, dispersing knots, and eliminating swelling. This formula is used for treating intestinal canker sores at the beginning, with damp heat and stagnation. The symptoms include swelling and swelling of the right lower abdomen, painful refusal to press, pain like gonorrhea when pressed, self-regulation of urination, occasional fever, spontaneous sweating, and vicious cold, or right foot flexed but not stretched, with yellowish greasy coating and slippery pulse. This formula is often used clinically in treating damp-heat stasis evidence such as acute simple appendicitis, intestinal obstruction, acute biliary tract infection, biliary ascariasis, pancreatitis, and acute pelvic inflammatory disease.

Da Huang Fu Zi Tang

Da Huang Fu Zi Tang is the name of a traditional Chinese medicine formula. It has the effect of warming Yang and dispersing cold, promoting constipation and relieving pain. Yang deficiency and cold stagnation, abdominal and hypochondriac pain, constipation, fever, coldness in the hands and feet, white and greasy tongue coating, tight pulse.

How to buy Da Huang?

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