a horsetail

a horsetail

(notes on materia medica)

[synonym] jiecao (a collection of Materia Medica), Gongmu Cao, raojiecao, hollow Cao (experimental study of traditional Chinese Medicine), wasp grass, bristle grass (records of northeast medicine), Huangma grass (records of Sichuan Traditional Chinese Medicine), jiejiecao, Jiegu grass (Shaanxi traditional Chinese Medicine).

[source] it is the whole plant of Equisetaceae.

[plant morphology] Vitex trifolia

Perennial herbs. Rhizome creeping rooting, black or dark brown. The stem is erect and 2-type. The vegetative stem grows after the sporophyte withers. It is 15-60 cm high and has 6-15 ridges. Leaves degenerate, lower part united into sheath, sheath teeth lanceolate, black, margin gray white, membranous; branches whorled, medium solid, 3-4 ridges, single or re branched. The sporophyll is usually purple brown, fleshy, unbranched, with long and large sheath. The sporangium is terminal, obtuse, 2-3.5cm long; the sporophylls are hexagonal, shield shaped, spirally arranged, with growing sporangia on the margin. The spores are in the same shape.

Born by a stream or in a shady valley. It is distributed in Jiangxi, Anhui, Guizhou, Sichuan, Tibet, Xinjiang, Shaanxi, Shandong, Hebei and Northeast China.

[collection] from May to July, the whole grass was cut and dried in the shade.

[medicinal material] dry whole grass, about 30 cm long, similar in appearance to that of growing, but more than shrunken, or branches falling off. The stem is slightly oblate or round, light green, longitudinally striated, with long internodes and degenerated scaly leaves on each node, which are sheath like, with tooth crack at the apex and dura mater. The branchlets are dry and the tip is gradually thin. Base sometimes with partial roots, dark brown. It is better to be dry, green, without roots and impurities.

Produced in Northeast, Shaanxi, Sichuan, Guizhou, Jiangxi, Anhui and other places.

[chemical constituents] the whole herb contains Vitexin, equisetin, isoquercetin, luteolin, silicic acid (5.19-7.77% of the dry crude drug), organic acid, fat, β - sitosterol, equisetine, dimethyl sulfone, thymine, 3-methoxypyridine and many kinds of amino acids.

The spores contain pentahydroxyanthraquinone glucoside, octadecanedioic acid, triadecanedioic acid, dimethyl triadecanedioate, gossypioside and gossypioside.

(1) diuretic effect

The alcohol soluble components and flow extract of fresh whole grass have diuretic effect, but not strong. However, the diuretic effect of decoction was not confirmed.

② Impact on circulation system

The decoction (1:2) was injected intravenously into rabbits and dogs, which could cause the decrease of blood pressure and reflex respiratory excitement. The hypotensive components are soluble in water but not in alcohol and chloroform. A small amount of fresh water decoction can increase the contractility of isolated frog heart, but a large amount can inhibit it.

③ Other functions

It can be used to treat diabetes clinically, but it has not been proved by animal experiments. It has also been reported that it can be used as hemostatic agent in hemorrhoids and uterine bleeding. Equisetine is toxic to horse and harmless to human.

Bitter and cool.

① "Materia medica collection": "bitter, flat, non-toxic. "

② Sichuan Traditional Chinese medicine annals: "it is cool in nature, astringent in taste and non-toxic. "

③ "Shaanxi traditional Chinese medicine annals": "bitter sweet, non-toxic. "

Functions and indications: clearing heat, cooling blood, relieving cough and diuresis. Treatment of hematemesis, bleeding, bloody stool, amenorrhea, cough, asthma, gonorrhea.

① "Materia medica notes:" the main knot Qi tumor pain, on the gas urgent. "

② Pharmacology of Chinese medicine: "diuresis. "

③ "New edition of traditional Chinese medicine": "treatment of epistaxis, menorrhagia, intestinal bleeding, hemoptysis, hemorrhoids, etc. "

④ "Clearing away heat and relieving cough" in Sichuan Traditional Chinese medicine annals. Treatment of hematemesis, bleeding and women's amenorrhea. "

⑤ Shaanxi Chinese herbal medicine: "clearing heat, diuresis, hemostasis, detumescence. Treatment of urinary tract infection, urine pain, fracture, epistaxis, hemoptysis, intestinal bleeding, menorrhagia. "

[usage and dosage] oral administration: decoction, 1-3 yuan (1-2 Liang fresh). External use: tamping or grinding.

[prescription selection] ① for cough and shortness of breath: ask for two coins from Jing and seven coins from di Ku. Take it in water. (experimental study of traditional Chinese Medicine)

② Treat acute drench: fresh ask Jing one or two, rock sugar for lead. Take it in water.

③ Treatment of low back pain: two liang of fresh Wenjing and two pieces of tofu. Take it in water.

④ Treatment of knife wound: ask about the nature of burning ash and sprinkle the wound.

⑤ Treatment of traumatic injury: after bone reduction, fresh ask Jing a grip, add brown sugar mash external application. (2) Jiangxi herbal medicine manual is published below.)

[clinical application] treatment of chronic tracheitis

72 cases were observed, 21 cases were controlled in the near future, 18 cases were markedly effective, 23 cases were improved and 10 cases were ineffective. The effect of relieving cough and eliminating phlegm was better. During the treatment, it was found that this product has a certain antihypertensive effect. Preparation and usage: 1 Decoction: 1 Liang (10 Liang system) of Herba Sarcandrae, add 600-800 ml of water, boil for 5-8 minutes, take separately in the morning and evening. It contains two tablets of 43.0 g each. Take 10 tablets three times a day.

Chinese PinYin : Wen Jing