Hibiscus rosa-sinensis

Hibiscus rosa-sinensis

(compendium)

[synonyms] huashanghua (notes of Nanyue), dahonghua (hanyingyunfu), tuhonghua (Luchuan materia medica), dahongmudan (Paeonia suffruticosa) and diaozhonghua (medicinal records of Nanning City).

[source] it is the flower of Hibiscus syriacus.

[plant morphology] Hibiscus (Southern vegetative), also known as hibiscus, riji (Southern vegetative), hibiscus (Youyang Zazu), fosang (lingbiaoyi), Fusang (Gangmu), Fushang (Guangdong Xinyu), Shunying, xiaomudan (liangyue SuoYu), Hongmu (Hibiscus).

Shrubs or small trees, up to 6 meters high. Leaves alternate; broadly ovate or narrowly ovate, 7-10 cm long and 2.5-5 cm wide, apex pointed or acuminate, margin with coarse teeth or notches, or almost entire except near apex, glabrous, or with a few sparse hairs on dorsal vein. Flowers solitary in upper leaf axils; with a short or long, jointed, widely spread or inclined stalk; bracteoles 6-7, linear, separated, shorter than calyx; calyx green, about 2 cm long, 5-lobed, lobes ovate or lanceolate, sharp; corolla about 10 cm in diameter, petals 5, obovate, rounded, usually rose red, but also reddish, yellowish or other colors, sometimes double; stamens numerous, Filaments united into a cylinder; ovary 5-locular, style 5-lobed, stigma capitate, stamen tube and stigma very long, beyond the corolla. Capsule ovate, beaked, smooth. It blooms all year round.

It is often planted in the courtyard, but also in the wild. It is distributed all over the country.

The root (root) and leaf (leaf) of this plant are also used for medicine. Please refer to the special section for details.

[chemical constituents] the flower contains cyanidin diglucoside, cyanidin sophoroside and quercetin diglucoside.

[pharmacological action] Hibiscus syriacus contains glycosides, which can reduce blood pressure in anesthetized dogs. 40-80 mg / kg of Hibiscus syriacus (non pure product) can reduce blood pressure sharply, and then decrease again after a slight rise, lasting for 1-2 hours. The hypotensive effect was not affected by atropine, and it was also reduced in spinal cord dogs. It has spasmogenic effect on smooth muscle (small intestine of rats, rabbits and guinea pigs, bronchi of rats, dogs and rabbits, uterus of rabbits, etc.) and can be blocked by atropine. It can contract the rectus abdominis muscle of frog (0.2-1 mg / ml), and can be partially antagonized by tubocurarine. In the small intestine smooth muscle specimens, 0.1-0.3 mg / ml glycosides can turn to relax after contraction, and antagonize the spasm caused by 5-hydroxytryptamine, acetylcholine, tissue vertigo and barium chloride. It seems that the latter is not the same substance as the spasmogenic effect of stimulating cholinergic receptor.

Sweet and cold.

① "Gangmu": "Gan, Ping, non-toxic. "

② Ben Cao Qiu yuan: "sweet, cold,"

③ Lu Chuan's materia medica: "it's cool in nature and light in taste. "

④ "Guangxi Traditional Chinese medicine annals": "taste astringent, flat. "

Functions and indications: clearing lung, resolving phlegm, cooling blood and detoxifying. It is used to treat epistaxis, carbuncle, white phlegm, cough and sores.

① "Guangdong new language": "moisten and nourish blood. "

② "There are two kinds of red and white, white for white dysentery and white turbidity, red for red dysentery and red turbidity, steamed and dried more rice, soaked in wine. "

③ "Clearing lung heat, removing phlegm and fire, and regulating cough" is the key point of Lingnan medicine collection. "

④ Lu Chuan materia medica: "cooling blood and detoxifying. Treatment of blood heat, bleeding, blood pruritus, toxic sores. "

⑤ "Treating hemoptysis by burning pig's lung" is the key point of "treating hemoptysis by burning pig's lung". "

[usage and dosage] oral administration: decoction, 1-3 yuan (fresh 0.5-1 Liang). External use: tamping.

[selected formula] for carbuncle, gangrene and swelling of the cheek: Fu sang ye or Hua, the same as Bai Fu Rong ye, burdock ye and Bai Mi Yan ointment. (compendium)

Chinese PinYin : Fu Sang Hua