Reed root

Reed root

(notes to the classic of Materia Medica)

[synonym] Lu Mao Gen (Huiyue Yijing), Wei Gen (Wenbing Tiao Bian), Lu Gu Gen (Cao Mu Bian Fang), Shun Jiang long (Tianbao Ben Cao), Shui? Shi (Lingnan caiyao Lu), Lu Chai Gen (Nanjing folk herb), Lu Tong (Jiangsu Zhi Yao Zhi), Wei Zi Gen (Hebei herbal medicine), Lu Ya Gen (Shandong traditional Chinese Medicine), Tian Geng Zi (Sichuan Traditional Chinese Medicine).

[source] it is the rhizome of Phragmites australis.

[plant morphology] reed, also known as reed and Jia (the book of songs), reed (bielu), asparagus (Yaodui), Puwei (Shengji Zonglu), weizicao (salvaging materia medica), hezazhu and shuiluzhu.

Tall perennial herb with stoloniform underground stem, stout, transverse, hollow internodes, with buds on each node. The stem is 2-5 meters high, usually with white powder under the node. The leaves are arranged in 2 rows, with leaf sheath; the leaf sheath embraces the stem, glabrous or with fine hairs; the leaves are gray green or blue-green, wider, linear lanceolate, 30-60 cm long and 2-5 cm wide, rough, apex acuminate; the ligule is 1-2 mm long, forming a round of hairs. Panicles large, terminal, erect, sometimes slightly curved, 15-25 cm long, sometimes longer; spikelets 9-12 mm long, dark purple or maroon purple, light yellow; glumes lanceolate, glumes about 1 times longer than glumes; the first flower is usually male, with lemma 8-15 mm long, lemma 3-4 mm long, rough ridge; the second lemma 9-16 mm long, apex acuminate, basal disc 6-6 mm long Bisexual flowers with 3 stamens, 1 pistil, 2 style, stigma pinnate. Caryopsis, elliptic to oblong, separated from palea and palea. The flowering period is from September to October.

It grows in shallow water near rivers and ponds. It is distributed in most parts of the country.

The stem (asparagus stem), leaf (Asparagus leaf), seedling (Asparagus), sheath leaf (Asparagus sheath), flower (Asparagus flower) of this plant are also used for medicine; see the special section for details.

[collection] in spring, summer and autumn, dig and wash the soil, cut off the residual stems, buds and fibrous roots on nodes, peel off the membranous leaves and dry them in the sun. Or buried in wet sand for fresh use.

Fresh reed root

Also known as: live water reed root. It is long cylindrical or oblate cylindrical, with different length and diameter of about 1.5 cm. The surface is yellowish white, glossy, and the tip is pointed like a bamboo shoot, green or yellowish green. The internodes are 10-17 cm long, and there are residual fibrous roots and bud marks on the internodes. Light and tough, not easy to break. The cross section is yellowish white, hollow, and the wall thickness is about 1.5 mm. The pores are arranged in rings. The skin is loose and can be peeled off. No gas, sweet taste.

② Dried reed root

A long compressed cylinder. The surface is glossy, yellowish white, the nodes are hard, reddish yellow, and there are longitudinal wrinkles between the nodes. Light and flexible, not easy to break, no gas, slightly sweet taste. The best ones are thick, yellow white, glossy, no fibrous root and tender.

It is produced all over the country.

[chemical constituents] it contains Coix, 5% protein, 1% fat, 51% carbohydrates and 0.1% asparagine. Reed contains 48-54% cellulose, 18.2% lignin, 12.4% xylan and 2.8% ash. D-xylose, L-arabinose, D-glucose, D-galactose and two kinds of uronic acids were produced by the hydrolysis of polysaccharides. In addition, it contains a lot of vitamins B1, B2 and C, as well as alfalfa.

Sweet and cold.

① Bielu: "it tastes sweet and cold. "

② "On medicinal properties": "non toxic. "

③ Ben Cao Zai Xin: "it tastes sweet and bitter, its nature is slightly cold, and it is non-toxic. "

④ "Luchuan Materia Medica": "sweet and light, slightly cold. "

[channel tropism] entering lung and stomach channels.

① "Lei Gong processed medicine solution": into the lung, stomach two channels. "

② "Get to match the materia medica": "start with Shaoyin and Taiyin meridians. "

③ "Yao Yao Fen Ji": entering the lung, spleen and kidney. "

④ According to Bencao Zaixin, "it enters the liver and spleen meridians. "

Functions and indications: clearing away heat, promoting body fluid, eliminating trouble and stopping vomiting. Treatment of fever, thirst, stomach heat, vomiting, choking diaphragm, nausea, lung impotence, lung carbuncle. It can also detoxify tetrodotoxin.

① Bielu: "it's convenient to stop thirst and heat. "

② "On medicinal properties": "it can relieve great fever and appetizer. The treatment of choking is not enough. "

③ "Tang Materia Medica": "it is good to treat nausea, stomach heat and typhoid fever. "

④ "Rihuazi Materia Medica" says: "when treating cold and heat, the disease is depressed, the heart is hot during pregnancy, and the diarrhea is thirsty. "

⑤ "Daily use Materia Medica": "detoxify Fugu fish poison. "

⑥ "Herbal Mengluo": "detoxification, fish and crab poisoning. "

⑦ "Materia medica primitive": "treatment of retching cholera. "

⑧ Yucatalpa medicine solution: "qingjiangfei, xiaodangyufan, Shengjinzhike, in addition to vomiting food, treatment of choking and chagrin?"?. "

⑨ Yilin zuanyao: "it can infiltrate dampness and move water to treat lung carbuncle. "

⑩ Tianbao materia medica: "Qingxin Yishen, qumu Wu, dizziness, tinnitus, sore poison, night dream reversal, spermatorrhea. "

(11) Chinese medicine Zhi: "treating constipation. "

(12) Nanjing folk herbs: "treating sore throat. "

(Shandong traditional Chinese Medicine): treating edema. "

(14) records of Sichuan Traditional Chinese medicine: "it is used to treat macular rash, tongue dryness and fluid deficiency. "

[usage and dosage] oral administration: decoction, 0.5-1 Liang (fresh 2-4 Liang); or mashed juice.

[should avoid] it should not be taken if the spleen and stomach are deficient and cold.

The classic of materia medica: "do not take it because of cold and cholera, and vomit because of cold. "

[prescription selection] ① for the treatment of Taiyin warm disease, those who are thirsty and not quick to spit white foam: pear juice, water chestnut juice, fresh reed root juice, Ophiopogon japonicus juice, lotus root juice (or with sugarcane pulp), temporarily consider how much, take it evenly and cool, those who don't like to cool very much, take it in heavy soup and stew it warm. (wuzhiyin in wenbingtiao Bian)

② Treatment of five choking heart diaphragm qi stagnation, boring vomiting inverse, do not eat: reed root 52. File, with water three, boil two, to dross, not timing, warm clothes. (prescriptions of golden chamber and jade letter)

③ Treatment of nausea and vomiting more than syncope: three jin of reed root. Cut, boil, drink frequently. (behind the elbow)

④ After the treatment of typhoid fever, nausea and vomiting, and retching no food: raw reed root (cut), green bamboo Ru each one liter, japonica rice Sanhe, ginger three Liang. On the four flavors, five liters of water, boil two and a half liters, drink casually. (Qian Jin Fang Lu Gen Yin Zi)

⑤ Treatment of bone steaming lung flaccidity, irritability can not eat: reed root (cut end scale), Ophiopogon (heart), bone white each 12 Liang, ginger 12 Liang (with skin cut), orange peel, Poria cocos each 5 Liang. Add six flavors, cut them into pieces, boil eight liters with two buckets of water, wring the dross, take them at five different temperatures, take them at eight or nine Li, take them at three times in the day, take them at two times in the night, and cover them with sweat. Avoid sores. (Xuangan Zhuanshi Fang)

⑥ Cholera: three bucks for reed root, one bucks for Ophiopogon japonicus. Take it in water. (Qian Jin Fang)

⑦ Treatment of fish poisoning, swelling, upset, and eating perch poisoning: reed root juice, drink more good, and treatment of crab poison. (Qian Jin Fang)

⑧ Treatment of gingival bleeding: reed root decoction, instead of tea. (Hunan medical records)

Chinese PinYin : Lu Gen