Dioscorea zingiberensis

Dioscorea zingiberensis

(Chinese medicine and plant records)

[synonym] zhenzhengen, Huangjiang (Chinese medicine and plant records), huanglianshen, dihuangjiang, yeyangjiang (selected works of the whole exhibition? Surgery).

[source] it is the rhizome of Dioscorea zingiberensis.

[plant morphology] Dioscorea zingiberensis

Herbaceous Liana. The rhizome is transverse. Stem slender, glabrous, longitudinally rugose or shallowly grooved, sometimes slightly protruding on both sides of branch or petiole base, or spinose. Leaves alternate, shield shaped; leaf blade triangular ovate or long ovate, 5-11 cm long, 4-9 cm wide, margin shallowly undulate, base cordate or nearly truncate, usually 3-lobed, central lobe apex acuminate, bilateral lobes rounded auricular; petiole shorter than leaf blade. Flowers unisexual, dioecious; male inflorescence spicate, axillary, sometimes branched; flowers sessile, often 2-3 clusters, only 1-2 fully developed; bracts membranous, ovate or triangular ovate; perianth 6, ovate, purplish red, stamen 6; female inflorescence 6-8 flowers, flowers with short stalks, perianth 6-lobed, stamen degenerate; ovary long cylindrical. The capsule is blue black after drying, with white powder on its surface. Its wings are nearly half moon shaped, about 2.5 cm long and 1.5 cm wide. Its top is slightly concave or nearly truncated, its base is narrow and round, its seeds are oblate and oval, and its wings are membranous. The flowering period is from May to August. The fruit period is from September to October.

Born in mixed wood forest or forest edge roadside, ditch. It is distributed in Shaanxi, Jiangxi, Hubei, Hunan, Sichuan, Yunnan, Guizhou and other places.

[collection] in autumn, the soil is removed and dried.

[chemical constituents] it contains diosgenin. The content of diosgenin was 1.05%, 3.3% and 3.4-4.9% respectively. Because of the high content of diosgenin, diosgenin is a good raw material for the synthesis of adrenocortical hormone drugs.

[functions and indications] selected works of Quanzhan? Surgery: "it is used to treat carbuncle, furuncle, bee sting and appendicitis in early stage. "

[usage and dosage] external use: Yanmo Tiao Fu.

[taboo] selected works of the whole exhibition: surgery: "do not use it when the skin has been ragged and pus has formed. "

[formula selection] for acute suppurative skin infection, soft tissue injury, bee sting and appendicitis: fresh Dioscorea zingiberensis rhizome 2-3 Liang, mix with Vaseline at the end of the research, and apply it to the affected area once a day; it can also be applied with chrysanthemum leaf, Coptis chinensis or Sophora flavescens. (selected works of the whole exhibition: surgery)