Yin Yu

Content
1. What is Yin Yu?
    1.1 Morphological characteristics of Yin Yu
2. Growth environment of Yin Yu
3. Cultivation techniques of Yin Yu
4. How to reproduce Yin Yu?
5. Yin Yu benefits
6. Yin Yu side effects
7. Yin Yu TCM
8. Pharmacological effects of Yin Yu
9. How to buy Yin Yu?

Yin Yu is the stem and leaves of Skimmia reevesiana Fort. or tree Skimmia arborescens Anders. It is distributed in East China, Southwest China and Taiwan, Hubei, Hunan, Guangdong, Guangxi and other places. Yinyu is distributed in Guangdong, Guangxi, and Yunnan. It has the effect of dispelling wind and winning dampness. Commonly used for rheumatic paralysis, contracture of limbs and weakness of both feet.

Yin Yu, also known as Huangshan Gui, is a shrub, 1-2 meters tall. Its branchlets are often hollow, skin light gray-green, smooth, and often with shallow longitudinal wrinkles after drying. Leaves have the aroma of citrus leaves, leathery, set in the upper part of the branch, leaf blade elliptic, lanceolate, ovate or oblanceolate, apical mucronate or obtuse, base broad cuneate, 5-12 cm long, 1.5-4 cm wide, leaf surface midrib slightly raised, more prominent after drying, with fine hairs; petiole 5-10 mm long. Inflorescence axis and pedicel are covered with short fine hairs, flowers fragrant, yellowish white, terminal panicle, dense, pedicel very short; sepals and petals are 5, rarely 4 or 3; sepals semiorbicular, 1-1.5 mm long, margin covered with short hairs; petals yellowish white, 3-5 mm long, each petal slightly unequal in size when in bud; stamens as many as petals and equal or longer, style very short at first, elongated when flowers bloom, stigma Staminodes of male flowers rod-shaped, ovary subglobose, style terete, stigma capitate; pistillode of male flowers depressed-globose, apically mucronate, indehiscent or 2-4-lobed. Fruit round or ellipsoid or obovate, 8-15 mm long, red, with 2-4 seeds; seeds compressed-ovate, 5-9 mm long, 4-6 mm wide, 2-3 mm thick, apically pointed, base rounded, with very fine nubs. The seeds are flat-ovate, 5-9 mm long, 4-6 mm wide, 2-3 mm thick, pointed at the top, rounded at the base, with very fine nests.

Trees of Injuna are small trees up to 8 m tall, with a diameter at breast height of 20 cm. The pith of the branchlets is small but obvious, and the cortex of the biennial branches is rather thin and does not wrinkle after drying. Leaves are thin, thin papery after drying, elliptic or oblong, or obovate-elliptic, 5-18 cm long, 2-6 cm wide, both surfaces glabrous, midrib slightly raised on the leaf surface or the fleshy parts on both sides of the midrib depressed after drying, lateral veins 7-10 on each side, sparse and fewer; petiole 1-2 cm long. Inflorescence 2-5 cm long, inflorescence axis puberulent or glabrous; bracts broad-ovate, 1-1.5 mm long; sepals slightly larger than bracts, both margins hairy; petals 5, obovate or ovate-oblong, 4-5 mm long, spreading horizontally or opening obliquely upward; stamens of male flowers longer than petals, filaments threadlike, pistillode 3-4 mm long, rod-shaped, apically 3-4-parted; sterile stamens of female flowers shorter than petals Ovary suborbicular, style ca. 1 mm long, stigma capitate. Fruit ovoid 6-8 mm in diameter, rarely larger, blue-black, usually with 1-3 seeds. The fruit is usually 1-3-seeded.

Yin Yu is borne in the shade of trees. It is distributed in east and southwest China and Taiwan, Hubei, Hunan, Guangdong, Guangxi, etc. And tree Yinyu is born in the understory of forests at higher elevations. Distributed in Guangdong, Guangxi, Yunnan, etc.

Yin Yu likes warm and moist semi-shady environment, slightly strong shade, avoid hot sun, afraid of high temperature, cold tolerance, afraid of waterlogging, also afraid of dryness. Suitable for growth in sparse fertilizer, humus-rich, well-drained sandy soil with good permeability.

When the summer temperature exceeds 30 degrees, the plant will enter dormancy and should be placed in a cool and ventilated place to spend the summer. The low temperature in winter should be controlled in time, especially in cold areas in the north, and it is best to keep the temperature above 5 degrees when it is moved indoors in winter.

Yinyu is suitable for breeding in a well-lit and bright environment. In summer, we should pay attention to avoid exposure to the sun, shade treatment, and keep a good ventilation, and in winter, it can receive all-day light.

Watering need not be too diligent. Normal watering during the growing period, follow the principle of dry and wet, not too often, when the air is dry, we should spray water to improve the humidity of the air around the environment.

Yin Yu herb has a high nutrient demand during the growing season and needs to be supplemented with fertilizer once every half month. Fertilizer can be used only with rotten cakes, and fertilizer should be stopped in time in winter and summer, taking care to avoid fertilizer damage.

Yin Yu growth rate is slow, during management do not need too much pruning, in the spring branch just beginning to sprout period cut off the disease and insects, dry branches and affect the shape of the plant branches, can ensure normal growth.

Yinyu's main disease is leaf spot disease, mainly caused by high temperature and high humidity, poor ventilation, mostly occur in the summer and autumn, high winter temperatures, high humidity will occur, pay attention to ventilation during the planting process, so as to avoid long-term moisture retention.

Yin Yu is poisonous, so extra care is needed when consuming it. The method of attacking poison with poison, the cold in the body, as well as toxins are forced out of the body, so the therapeutic principle of the insider's taro is formed. The pain in the limbs caused by rheumatism and paralysis, as well as limb weakness, pain relief and treatment; stubborn foot odor is related to wind stagnation, in the body through the dissolution of stagnant toxins, and then play a role in the treatment of foot odor. The poisonous parts of the herb are the fruit and leaves, so it is not commonly used as an herb, but it is effective for diseases caused by rheumatism.

Yin Yu is a toxic Chinese medicine, its roots, stems and leaves can be used as medicine. Yin Yu is bitter, warm, toxic, enters the liver and kidney meridian, has the effect of dispelling wind and removing dampness and relieving pain, and needs to be used strictly under the guidance of a Chinese medicine doctor for identification, not without authorization. It is mainly used in clinical practice to treat many diseases caused by wind-cold damp paralysis, including rheumatoid arthritis, rheumatoid arthritis, shoulder arthritis, proliferative osteoarthropathy, etc. It can also be used for symptoms such as twitching of limbs and soreness and weakness of both feet caused by wind-cold damp paralysis. However, because this product is a toxic Chinese medicine, pregnant women should avoid using it, and the rest of the population should also avoid abusing it to avoid poisoning incidents and adverse effects.

Yinyu is warm in nature and tends to generate heat and help heat, so people with yin deficiency and fire should also avoid using it to avoid aggravating their discomfort. Inoceramus contains more chemical components, such as furanquinoline alkaloids, coumarin compounds, etc. People who are allergic to any of the components of Inoceramus should avoid using it.

Stem and leaves.

Pungent, bitter, warm in nature, toxic.

Yin Yu belongs to the liver and kidney meridians.

Dispelling wind and winning dampness.

Rheumatic paralysis and pain, contracture of limbs, weakness of both feet.

Yin Yu's base has ephedrine-like effects, which can increase blood pressure in anesthetized cats, enhance the effect of adrenaline on blood pressure and uterus, strengthen in situ uterine contraction in cats and rabbits, inhibit small intestine contraction and dilate coronary vessels. It has an excitatory effect on the central nervous system and can also increase transverse muscle tone and spinal cord reflex excitability; its effect can be maintained after removal of the adrenal glands. It has no effect on the ganglion, and has no significant effect on the nerve - transverse muscle preparation in cats or rats, and does not reverse the sympathomimetic effect.

Subcutaneous injection, at higher doses, can inhibit the myocardium; after sedation, it can produce myocardial depression and eventually death by spasm.

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