(Emei medicine plant)
[synonym] Tianqi (records of Sichuan Traditional Chinese Medicine), Jinshan Tianqi (commonly used Chinese herbal medicine in Sichuan).
[source] it is the root of the Umbelliferae plant e'shen.
[plant morphology] e Shen
Perennial herbs, 60-80 cm high. The taproot is thick. Stem cylindrical, hollow. Leaves alternate, 10-30 cm long, 2-3-pinnate or 2-pinnate; lobes lanceolate ovate, 1.5-3.5 cm long, 5-15 mm wide, margin pinnately cleft or toothed, sparsely pilose below; petiole 5-20 cm long. Compound umbel, terminal or axillary; no involucre, bracteoles 5-8, ovate or lanceolate, entire, hairy; flowers miscellaneous, male flowers more; calyx teeth not obvious; petals 5, white, apex obtuse or pointed. The fruit is tubular and narrow at the apex, contracted at the raphe, and has two persistent stigmas at the top. The flowering period is from April to May.
Born in the shade or semi shade of Zhongshan District. It is distributed in Jiangsu, Zhejiang, Sichuan and other places.
[collection] March to April or September to October. Cut off the stems, wash them, scrape off the rough skin and tail whiskers, scald them with boiling water, and then dry them in the sun or over low heat.
[medicinal material] the dry roots are strip or cone-shaped, 3-7 cm long and 1-2 cm thick in the middle. There are stem marks on the top and small conical protuberances on the side occasionally: the tail is gradually smaller. The surface is yellowish brown or grayish brown with obvious coarse ring lines
The meat is solid and heavy with yellow or yellowish brown cross section and fine texture. The flavor is pungent and sweet. Solid quality, white and yellow color, thick root and fine ring pattern are preferred.
[chemical constituents] the root contains oxypodophyllotoxin, isooxypodophyllotoxin, reducing sugar, sucrose, starch, etc. Flowers contain flavonoid glycosides, which are the glycosides of luteolin on C7.
[processing] soak in water, moisten for 4 hours, chop and dry.
[nature and taste] records of Sichuan Traditional Chinese medicine: "it is mild in nature, sweet and pungent in taste, and non-toxic. "
[Guijing] Sichuan Traditional Chinese medicine annals: "entering spleen, stomach and lung three meridians. "
[functions and indications] 1) Sichuan Journal of traditional Chinese medicine: "Buzhong Yiqi. It is used to treat spleen deficiency, food distension, limb weakness, lung deficiency, cough and asthma, nocturia and edema of the elderly. "
② "Zhejiang traditional Chinese medicine resource list": "treat stomach disease, ventilate. "
③ To cure hematemesis caused by falls and injuries. (Sichuan)
[usage and dosage] oral: decoction, 3-5 yuan.
[taboo] Sichuan Traditional Chinese medicine annals: "it should not be used when the evil is excess but the healthy qi is not deficient. "
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