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Chinese herbal medicine: the efficacy and function of Peucedanum praeruptorum
root of purple-flowered peucedanum

("The Theory of Leigong Firemaking")

The source is the root of Peucedanum praeruptorum or Peucedanum purpurea of Umbelliferae.

Plant morphology ① Peucedanum praeruptorum, also known as: menstruation cuisine, Luoguicai (Qianzhi by Li Zongfang), Peucedanum praeruptorum (Textual Research on Plant Names and Facts), wild celery, rock wind, South Saposhnikovia divaricata, Slope Saposhnikovia divaricata, Peucedanum henryi and Ligusticum wallichii.

Perennial herb, 30 ~120cm high. The root is conical. The stem is erect, simple and branched at the upper part. The basal leaves and lower leaves are papery, round to broadly ovate, 5 ~ 9 cm long, pinnately divided in 2 ~ 3 cycles, and finally the lobes are rhombic obovate, irregularly pinnately divided and serrate; The petiole is 6 ~ 20 cm long, with a wide sheath at the base, holding the stem; The apical leaf is born on the swollen leaf sheath. Compound umbel, terminal or axillary, with total peduncle 7 ~18, unequal length, no involucre, small involucre strip-lanceolate and hairy; Calyx 5, short triangle; Petals are white, broadly ovoid or nearly round, with inward curved tongues at the apex; Stamens 5, anthers ovoid; The ovary is hairy, and 2 styles are extremely short. Double bilberry is oval or ovoid, smooth and hairless, with linear back and middle edges and narrow wings on the side edges. Flowering period is August ~1October. Fruit period10 ~11month.

Wild in the grass on sunny hillside. Distributed in Shandong, Shaanxi, Anhui, Jiangsu, Zhejiang, Fujian, Guangxi, Jiangxi, Hunan, Hubei, Sichuan and other places.

② Peucedanum purpurea, also known as Radix Angelicae Sinensis (Textual Research on Plant Names and Facts), Radix Isatidis, Wild Spicy Vegetables, Coriander, Mulberry Root Seedlings, Radix Peucedani and Duck Feet.

Perennial herb, 70 ~140 cm tall. The root is conical, brown to brown, and has a strong aroma. The stem is erect, simple, round, with angular surface and few branches on the upper part. Basal leaves and lower leaves are papery, triangular and broadly ovate, 1 ~ 2 pinnately divided,1lobule 3 ~ 5 pieces, then 3 ~ 5 pieces, leaf axis wing-shaped, terminal lobe and lateral lobe are connected at the base, and the base is extended into wing shape, and finally the lobule is narrow oval or oblong with sharp teeth; The upper leaves of the stem are simplified into leaf sheaths. Compound umbels are terminal, with total stalks12 ~ 20, which are unequal in length; Total bracts1~ 2, oval, purple; There are many petioles; Bracteoles lanceolate; Calyx teeth 5, triangular; Petals are dark purple, long oval, with an acuminate apex and 1 rib; Stamens 5, anthers ovate; Ovary glabrous, 2 styles, extremely short. The bilberry is oval, 4 ~ 7 mm long, with sharp back and middle edges, which are silk-like, and the lateral edges develop into narrow wings. The flowering period is from August to September. The fruiting period is 9 ~10 month.

Wild on slopes, roadsides or under jungles. Distributed in Shandong, Henan, Anhui, Jiangsu, Zhejiang, Guangxi, Jiangxi, Hunan, Hubei, Sichuan, Taiwan Province and other places.

Collect the withered aerial parts in autumn and winter, dig out the main roots, remove the stems and leaves, fibrous roots and soil, and dry them in the sun or kang.

Medicinal materials ① Peucedanum praeruptorum

Also known as: Yun Qianhu, Xin Qianhu. The taproot has different shapes, such as conical, cylindrical or spindle-shaped, slightly curved, or with branches, but most of the root ends and branches have been removed, with a length of 3 ~ 9 cm and a diameter of1~1.5 cm. 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 ringed, mostly black, with longitudinal grooves and wrinkles at the lower part, and horizontal lenticels and fibrous root marks. Soft and easy to break; Loose section; The bark is the main part of the root, the periphery is milky white, the inner layer has yellow-brown circles, the central xylem is narrow, and there are yellowish-white chrysanthemum patterns; Draw some golden yellow, scattered, mostly. Aroma, sweet and bitter. It is better to have a neat strip, a long body, a yellow-white section and a strong aroma.

Location: Zhejiang, Hunan and Sichuan. In addition, it is also produced in Guangxi, Anhui, Jiangsu, Hubei and Jiangxi.

② Peucedanum purpurea

The taproot is branched or has lateral roots. The taproot is cylindrical, with a length of 8 ~15cm and a diameter of 0.8 ~1.7cm. There are stem marks and residual coarse hairs (leaf sheaths) on the root head. Several lateral roots, 7 ~ 30 cm long, 2 ~ 4 mm in diameter, thin cylindrical. The surface of the root is dark brown or grayish yellow, with fine longitudinal wrinkles and grayish white horizontal lenticels. The taproot is solid, not easy to break, uneven in section, easily separated from the wood, narrow in skin, light brown, scattered with yellow oil spots, and more near the cambium; The central essence is yellow and white, accounting for most of the roots; The branches are brittle and soft, easily broken, and the wood is nearly white. Aroma, light taste and bitter taste. It is better to have neat strips, long body, solid quality, yellow-white cross-section and strong aroma.

Location: Zhejiang, Anhui and Jiangxi. In addition, Shandong, Shanxi, Shaanxi and other places are also produced.

In addition to the above two kinds, there are roots of the same plant, Fangfeng, which are also used as Peucedanum praeruptorum in Shaanxi, Hebei, Henan, Guangxi and other places. The commodity is called "Peucedanum rigidum". See the article "Stone windproof".

The chemical composition of Peucedanum purpurea root contains coumarin: Peucedanum glycoside is about 1.6 1%. It also contains spongiosol, mannitol and volatile oil. The main components of volatile oil are wormwood and limonene. The root of Peucedanum praeruptorum contains Peucedanum praeruptorum A, B, C and D.

Pharmacological action The method of collecting tracheal mucus secretion from anesthetized cats proves that oral administration of Peucedanum chinense 1 g/kg can significantly increase the secretion of respiratory mucus, so it has expectorant effect. Injecting 1% iodine solution1~1.5 ml into the pleural cavity of cats caused cough, and taking 0.8 ~ 2 g/kg decoction had no obvious antitussive effect. Peucedanum (see "Fangfeng" article) has antibacterial and antifungal effects.

Processing Radix Peucedani: clean impurities, remove reed, wash the soil, soak it slightly, take it out, moisten it thoroughly, slice it and dry it. Honey Peucedanum: Take Peucedanum slices, mix well with refined honey and appropriate amount of boiling water, slightly stuffy, stir-fry in a pot with slow fire until it doesn't stick to your hands, take them out and let them cool. (Each Peucedanum Peucedanum slice 100 kg, 20 kg of refined honey)

"On Leigong's Baking": "Before repairing the beard, first scrape it with a knife, shave it with black skin and dirt, file it carefully, soak it in sweet bamboo juice to moisten it, and dry it in the sun."

Bitter and bitter, cold.

(1) The Theory of Lei Gong's Baking: "The taste is sweet and slightly bitter."

② Bielu: "It tastes bitter, slightly cold and nontoxic."

③ Theory of Medicinal Properties: "Sweet and pungent."

④ Herbal Medicine in Southern Yunnan: "Cold in nature, bitter and pungent in taste."

⑤ Compendium: "The taste is sweet and pungent, but the gas is slightly flat."

Meridian entering the lung and spleen.

① Compendium: "Hand and foot are Taiyin and Yangming."

② Explanations of the nature of Leigong's processed drugs: "Entering the four meridians of lung, liver, spleen and bladder."

(3) The Classic of Materia Medica: "Start with Taiyin and Shaoyang."

Functions are mainly used to dispel wind and heat, lower qi and eliminate phlegm. Treat wind-heat headache, phlegm-heat cough and asthma, vomiting, and chest and diaphragm fullness.

(1) Bielu: "The main treatment is phlegm in the chest and hypochondrium, qi stagnation in the heart, wind headache, phlegm retention and lower gas. "Treat typhoid fever, promote innovation, improve eyesight and replenish essence."

② "Theory of Medicinal Properties": "Eliminating heat and relieving qi, the main qi is hot both inside and outside, and it is better to take it alone."

③ "Rihuazi Materia Medica": "Treat all fatigue, relieve all qi, stop coughing, break the crux, stimulate appetite, dredge the five internal organs, control cholera, turn tendons, joint fatigue, nausea, vomiting, asthma, miscarriage prevention, and all infantile malnutrition."

④ Materia Medica of Southern Yunnan: "Dissolve cold and typhoid fever, sweating for medicine, stop coughing, raise and lower liver qi, improve eyesight, remove phlegm."

⑤ Compendium: "Clearing lung heat, resolving phlegm heat and dispersing common cold."

Usage and dosage for oral administration: decoction,1.5 ~ 3 RMB; Or into the pill, scattered.

It is appropriate to avoid ① "Notes on Materia Medica Classics": "Pinellia ternata is used for it. Gleditsia sinensis Fear of veratrum. "

(2) "Herbal Classics": "You can't treat diseases of qi deficiency and blood deficiency. Where fire due to yin deficiency is blazing, suffering from true yin, congealing into phlegm and causing cough and asthma; Qi deficiency due to true qi deficiency does not return to yuan, resulting in full chest and hypochondrium; Headache is not due to phlegm, but to yin and blood deficiency; "For those who are upset by internal heat and have cold and heat but not exogenous heat, the method is not allowed."

Prescription ① Treatment of cough, nasal discharge, thick and sticky saliva, unfavorable chest and mind, and sometimes annoying heat: one or two parts of Peucedanum (removing the reed head), one or two parts of Ophiopogon japonicus (removing the heart), one or two parts of Fritillaria (simmering slightly yellow), one or two parts of white mulberry root (filing), two parts of almonds (soaking in soup, peeling the tip, and frying with bran slightly yellow), and one part of licorice (baking slightly red, filing). Apply the medicine and pound the sieve to disperse. Every time you take four yuan, take one cup of water, add half a cent of ginger, fry until six minutes, and take it warm regardless of time. (Qian Hu San of "Sheng Hui Fang")

② Treatment of lung heat cough, phlegm retention and dyspnea: one and a half parts of Peucedanum praeruptorum (removing reed head), one or two parts of Fritillaria (removing heart) and one or two parts of Cynanchum praeruptorum; One and a half parts of Ophiopogon japonicus (peeled and baked), one or two parts of Fructus Aurantii (peeled and fried with bran), one and a half parts of Paeonia lactiflora (also) and Herba Ephedrae (root-removed), and one or two parts of rhubarb (steamed). Eight flavors, finely cut, such as beans. Every time you take a San Qian dagger, take a lamp of water, fry it for seven points, remove it from me, and take it warm after eating, two days. (Qianhu Drink in the General Record of Shengji)

Famous experts discuss ① "Compendium": "Qianhu is the medicine of Taiyin and Yangming in hands and feet, which is different from that of Chaihu whose pure yang rises and enters Shaoyang and Jueyin. It is good at lowering qi, so it can treat phlegm heat, asthma and cough, nausea and vomiting. Under the qi, the fire will drop, and the phlegm will also drop. Therefore, it has the achievement of promoting the old and bringing forth the new, and it is necessary to take medicine for phlegm. "Tao Hongjing said that he and Bupleurum have the same merits, although the treatment and syndrome are the same, but the main body is different."

(2) "Materia Medica": "Peucedanum, a medicine for dispelling cold, purifying exterior evils, warming lung qi and eliminating phlegm and cough. Such as cold syndrome, cough, phlegm and asthma, heavy voice and strong qi, this evil is also in the lung meridian; Typhoid syndrome, headache, aversion to cold, fever and bone pain, this evil is also in the bladder meridian; The chest and hypochondrium are full and the qi knot is uncomfortable, and this evil is also divided into the middle diaphragm. Pregnancy fever, unwilling to eat; Children have fever, and the rash is shapeless; "Your Excellency's phlegm is hot, and he resists qi. This evil spirit is trapped in the phlegm, and you can cure it with Qianhu." "Luo Yijin, Peucedanum chinense, Rhizoma Pinelliae, Rhizoma Arisaematis, Fructus Aurantii Immaturus, Fructus Aurantii Immaturus, dry phlegm, Fritillaria, Radix Ophiopogonis, Coptidis Rhizoma and Trichosanthes Radix, all have their own differences."

(3) "Herbal Tongxuan": "Peucedanum, lung and liver medicine also. Dispel wind and heat, eliminate phlegm and lower qi, promote appetite and digestion, stop vomiting and asthma, relieve cough and prevent miscarriage, and stop children from crying at night. Bupleurum chinense and Peucedanum chinense are both wind medicines, but Bupleurum chinense mainly rises and Peucedanum chinense mainly falls to different ears. All kinds of skills are the effect of searching for wind and lowering qi, and the liver and gallbladder are patients with wind and phlegm, so there is nothing else to treat them. Avoid fire. "

Remind you: this Chinese herbal medicine of Qianhu comes from the Internet, please follow the doctor's advice before using it.