Wild cohosh

Wild cohosh

(records of yam planting in Tianmu, Zhejiang)

[source] it is the rhizome of Cimicifuga singulata (Ranunculaceae).

[plant morphology] single spike Cimicifuga, also known as wild vegetable Cimicifuga, big leaf wolf.

Perennial herbs, up to more than 1 m high. The rhizome is transverse and stout. Stem erect, with edge line and longitudinal groove, 2 to 3 cycles, 3 pinnate, compound leaves alternate, lower leaves larger. Its petioles are elliptic ovate or narrowly ovate, lanceolate, 3.5-9 cm long, 1.5-5.5 cm wide, apex acute, margin 2-3-lobed, lobes notched and irregularly serrated; it is thick papery, glabrous above, white pubescence below along the vein. Inflorescence terminal and axillary, 18-30 cm long, usually single panicle, sometimes with 2-3 short branches at the base, forming a complex raceme; flowers miscellaneous, white, dense, pedicel and inflorescence axis densely brown scaly hairy; perianth oval, caducous; stamens mostly: carpel 2, follicles 6-8 mm long, irregularly square, sparsely white hair, with persistent style at the top; seeds 2-8 Five. The flowering period is from August to September. The fruit period is from October to November.

It grows in the wet grass under the high mountain forest or beside the stream and ditch on the edge of the forest. Distributed in Heilongjiang, Jilin, Liaoning, Inner Mongolia, Hebei, Shaanxi, Gansu, Zhejiang, Sichuan and other places.

[collection] from September to October, the roots and stems were dug, the stems and leaves and fibrous roots were removed and dried in the sun.

[medicinal material] the dried rhizome is irregular, slightly curved, about 20 cm long and 5-9 cm in diameter. The surface is brownish black to black, with transverse texture. There are many large vestiges of stem base above, and many punctate fibrous root marks below and on both sides. It is hard and not easy to break. In the cross section, cambium can be seen, which is brownish black. There are light black longitudinal stripes in the skin. Some wood parts are decayed, salty and hollow, and the skin has rhombic texture. The taste is pungent and bitter.

Produced in Zhejiang, Sichuan, Heilongjiang, Jilin and other places.

This product is used as Cimicifuga in Sichuan, heilongfei, Jilin and other areas. See "Cimicifuga" section.

[chemical constituents] the rhizome contains cimicifugoside, methyl cimicifugoside, acetyl cimicifugoside, cimicifugoside, 25-o-methylcimicifugoside, 25-o-acetylcimicifugoside and other saponins, cimicifugol and its esters, kenol, amiol, caffeic acid dimethyl ether, cimicifugin.

[pharmacological action] the extract from the root of Cimicifuga racemosa can reduce blood pressure. There are some estrogenic effects in animals.

[nature and taste] records of yam planting in Tianmu, Zhejiang Province: "the taste is sweet, pungent and slightly bitter, and the nature is slightly cold. "

[function and indications] records of Zhejiang Tianmu yam planting: "dispersing wind, detoxifying, ascending Yang, penetrating rash. It is used to treat Qi epidemic, Yangming headache, sore throat, rash, wind heat sore, chronic diarrhea, prolapse of anus, female collapse and infantile measles. It costs eight to two cents. "