[Variety Source]

This product is the root of the white-flowered Peucedanum (Peucedanum praeruptorum Dunn.) or the purple-flowered Peucedanum (Angelica decursiva (Miq.) Franch. & Sav.) of the Umbelliferae plant. White-flowered Peucedanum grows wild in the grass on sunny slopes. Mainly produced in Zhejiang, Hunan, and Sichuan, but also produced in Guangxi, Anhui, Jiangsu, Hubei, and Jiangxi. Peucedanum grows wild on hillside roadsides or under jungles. Mainly produced in Zhejiang, Anhui, Jiangxi, Shandong, Shanxi, Shaanxi and other places. Harvest when the above-ground parts wither in autumn and winter, dig out the main root, remove stems, leaves, fibrous roots and soil, and dry in the sun or on a bed.

In addition to the above two species, there is also the root of the Saposhnikovia Root of the same genus, which is also used as Peucedanum in Shaanxi, Hebei, Henan, Guangxi and other places. The product is called Peucedanum.

[Character]

White Flower Peucedanum is also known as Cloud Peucedanum and Letter Peucedanum. The main root has different shapes, conical, cylindrical or spindle-shaped, slightly curved, or has branches, but most of the root ends and branches have been removed. It is 3 to 9 cm long and 1 to 1.5 cm in diameter. The surface is dark brown or grayish yellow. There are stem marks and residual coarse hairs (leaf sheaths) on the root head. The upper end of the root is densely covered with ring patterns, mostly black, and the lower part has longitudinal grooves and wrinkles, as well as horizontal lenticels and fibrous root marks. The texture is soft and easy to break; the cross-section is loose; the bark occupies the main part of the root, the periphery is milky white, there are yellow-brown rings in the inner layer, the xylem is narrow in the center, and there are light yellow-white Chrysanthemum Flower patterns; golden yellow spots are scattered, mostly . It has aroma, tastes sweet and then bitter. The ones with neat strips, long body, yellow-white cross-section and strong aroma are better.

Peucedanum has divergent main roots or lateral roots. The main root is cylindrical, 8 to 15 cm long, and 0.8 to 1.7 cm in diameter. There are stem marks and residual coarse hairs (leaf sheaths) on the root head; there are several lateral roots, 7 to 30 cm long, 2 to 4 mm in diameter, and thin cylindrical. The surface of the root is dark brown or grayish yellow, with fine longitudinal wrinkles and grayish white transverse lenticels. The main root is solid, not easy to break, the cross section is uneven, the bark and wood are easily separated, the bark is narrow, light brown, with scattered yellow oil spots, more close to the cambium; the central part is yellowish white, occupying the root Most of them; the roots are brittle and soft, easy to break, and the wood is nearly white. It has aroma, light taste and then bitter and pungent taste.

[Property]

bitter and acrid, cool.

1. Leigong Paozhi Lun: "sweet and slightly bitter."
2. Bielu: "bitter, slightly cold, nontoxic."
3. Yaoxing Lun: "sweet and acrid."
4. Diannan Bencao: "cold, bitter and acrid."
5. Gangmu: "sweet and acrid, slightly neutral. Act on lung and spleen channels.
   1. Gangmu: "act on hand/foot taiyin and yangming channels."
   2. Leigong Paozhi Yaoxing Jie: "act on lung, liver, spleen and bladder channels."
   3. Bencao Jingshu: "act on hand taiyin and shaoyang channels."

   [Efficacy]

   Dispel wind and heat, lowering qi, dispersing phlegm.

   [Indications]

   Treats wind-heat headache, phlegm-heat, cough and asthma, vomiting, chest and diaphragm fullness and tightness.

   1. Bielu: "It is mainly used to treat phlegm, stuffiness in the chest and ribs, qi in the heart and abdomen, wind headache, remove phlegm and lowering qi. Treat disease caused by cold Hanre, introduce new ideas, improve vision and improve essence."
   2. Yaoxing Lun: "Remove heat and excess, lowering qi, main seasonal epidemic, internal and external heat, best cooked alone."
   3. Rihuazi Bencao: "Cures all fatigue, relieves all qi, relieves coughs, breaks knots, appetizers, relieves food, clears five zang-organs, main cholera spasm, joint boredom, nausea, vomiting, panting, calming fetus, Mild infantile malnutrition in children. "
   4. Diannan Bencao: "Dissolve common cold disease caused by cold, take medicine for sweating, stop cough, improve vision, remove nebula, and eliminate internal and external phlegm. "
   5. Gangmu: "Clear lung heat, resolving phlegm heat, and dispel wind evil."

   [Documentation]

   1. Gangmu: "Peucedanum is a medicine for Taiyin and Yangming of the hands and feet. It is different from Bupleurum, which is pure Yang rising and entering Shaoyang and Jueyin. Its power is longer than that of lowering qi, so It can cure phlegm-heat, asthma and cough, stuffiness, diaphragm and vomiting. When the Qi is low, the fire will fall, and the phlegm will also fall. Therefore, it has the effect of promoting the new and promoting phlegm. Tao Hong-jing said that it has the same effect as Bupleurum. Although the treatment syndrome is the same, the treatment is different. "
   2. Bencao Huiyan: "Peucedanum is a medicine for dispersing wind-cold, purifying exterior pathogens, warming lung qi, and dispersing phlegm. Such as Symptoms of common cold include cough with phlegm, heavy sound and strong qi, which is located in the lung meridian; syndrome caused by cold, headache aversion to cold, fever and bone pain, which are located in the bladder meridian; stuffiness and fullness of the chest and hypochondrium, Qi stagnation is not comfortable, and this evil is in the middle diaphragm. It is also caused by pregnancy fever and unwillingness to eat; in children, fever, sores and rashes are not visible; in adults, phlegm-heat and inverse qi are blocked, and this pathogenic qi is blocked between striae and interstice. , can be cured with Peucedanum. Luo Yi Jing says: Peucedanum removes cold phlegm, Pineilia removes damp phlegm, Nanxing removes wind phlegm, Immature Orange Fruit removes excess phlegm, Trichosanthes rhizome treats dry phlegm, Fritillaria Bulb and Ophiopogon Tuber treat deficient phlegm, Coptis Rhizome, Snakegourd Root treats heat and phlegm in different ways. "
   3. Bencao Tongxuan: "Peucedanum is also a medicine for the lungs and liver. It dispels wind and dispels heat, dispersing phlegm lowering qi, appetizing and reducing food, stopping vomiting and relieving asthma. , to relieve cough, calming fetus, and relieve night crying in children. Bupleurum and Peucedanum are both wind medicines, but Bupleurum mainly ascends and Peucedanum mainly descends to different ears, all of which have the effect of searching for wind lowering qi, and the wind phlegm of the liver and gallbladder meridian affects the patient. , there is no cure except this. Avoid fire. ”

   [Usage and Dosage]

   Oral administration: decoction, 1.5 to 3 yuan; or take into pills or powder.

   [Precaution]

   1. Bencao Jing Jizhu: "Pineilia is the cause of it. Hate Chinese Honeylocust Fruit. Fear false hellebore."
   2. Bencao Jingshu: "Do not use it. qi deficiency is a disease caused by insufficient blood. Where yin deficiency is caused by burning fire, the true yin is tortured and condenses into phlegm, causing coughing and asthma; vital qi deficiency causes the qi to fail to return to its original state, resulting in fullness in the chest and hypochondrium; headache is not caused by phlegm, but caused by yin blood. Deficiency; internal heat and upset, external manifestations of Hanre rather than external contraction are not allowed."

   [Processing and Storage]

   1. Peucedanum: Pick out impurities, remove the reeds, wash the soil, soak for a while, take it out, moisten it thoroughly, slice it and dry it in the sun.
   2. Honey Peucedanum: Take Peucedanum slices, mix well with cooked honey and appropriate amount of boiling water, let it simmer for a while, put it in a pot and fry it over mild fire until it is no longer sticky to your hands, take it out and let it cool. (Each Peucedanum piece is 100 kilograms, and cooked honey is 20 kilograms)
   3. Leigong Paozhi Lun: "When processing materia medica Peucedanum, first use a knife to scrape off the black skin and mustache, and then finely File, moisten with sweet Bomboo Juice, and dry in the sun."

   [Modern Pharmacology]

   Peucedanum root contains coumarins: Peucedanum glycosides about 1.61%. Also contains sponge sterol, mannitol, and volatile oil. The main components of volatile oil are acetate and limonene. Peucedanum root contains Peucedanum A, B, C and D.

   1. Using anesthetized cats to collect tracheal mucus secretion, it has been proven that oral administration of Peucedanum decoction 1g/kg can significantly increase respiratory mucus secretion, so it has a dispelling phlegm effect.
   2. Inject 1 to 1.5 ml of 1% iodine solution into the cat's rib membrane cavity to induce cough, and take 0.8 to 2 grams/kg of decoction, but it has no obvious cough-relieving effect.
   3. Peucedanum aglycone (see Saposhnikovia Root article) has antibacterial and antifungal effects.

   [Selection of Prescriptions]

   1. Treatment of cough, thick mucus, sticky saliva, unfavorable mind, and occasional fever: 1 tael of Peucedanum (remove the reed heads), 1 tael of Ophiopogon Tuber (remove the heart), 1 tael of Fritillaria Bulb (simmer until slightly yellow), One liang of the white skin of mulberry root (file), half a liang of Bitter Apricot Seed (soaked in soup, peeled and tipped, fried with bran until slightly yellow), one point of Liquorice Root (broiled until slightly red, file). Pound and sieve the medicine into powder. Take 4 qian per serving, add half a cup of Fresh Ginger Rhizome to a cup of water, fry until 6 minutes, remove the drizzle, take it warm regardless of the time. (Shenghui Fang Peucedanum powder)
   2. Treat lung heat cough, phlegm congestion, panting uneasiness: one or two halves of Peucedanum (remove reed heads), one or two each of Fritillaria Bulb (remove heart), Willowleaf Rhizome; One and two halves of Ophiopogon Tuber (remove the heart and roast), one and two halves of Submature Bitter Orange (remove the flesh and bran), one and two halves each of Peony and Ephedra (remove the root knots), and one and two halves of Rhubarb Rhizoma (steam). Top eight flavors, finely chopped, like soybeans. Take three qian dagger each time, add a cup of water, decoct 70% of it, remove the water, take it warmly after eating, two days a day. (Shengji Zonglu Peucedanum drink)