Jatropha curcas

Jatropha curcas

(Guangxi Chinese herbal medicine)

[source] the leaves and bark of Jatropha curcas, a Euphorbiaceae plant.

[plant morphology] Jatropha curcas, also known as Jatropha curcas L., Jatropha curcas L., Jatropha curcas L., Jatropha curcas L., Jatropha curcas L., Jatropha curcas L., Jatropha curcas L., Jatropha curcas L., Jatropha curcas L., Jatropha curcas L., jatropha chinensis L., Jatropha curcas L., Jatropha curcas L., Jatropha curcas L., jatropha chinensis L., Jatropha curcas L., Jatropha curcas L.

Shrubs or small trees, 2-5 meters high, the whole plant has gray milk. The bark is smooth and pale. Branches with raised leaf scars. Leaves alternate, suborbicular, 7-16 cm long, entire or 3-5-lobed, base cordate, palmately veined 5-7, hairy when young; petiole 6-18 cm long. Flowers unisexual, monoecious, cymose, axillary, 6-10 cm long; total pedicel long, branched above middle; bracts linear lanceolate or lanceolate; male sepals and petals 5 each, petals oblong, light green, covered with villi inside; stamens 10, two whorls, inner whorl filaments connate; disk gland 5; female flowers apetalless; ovary ovoid, glabrous, 3-locular, style 3. Stigma cleft. Capsule subglobose, about 2.5 cm in diameter, yellow, with 3 2-valved mericarps at maturity. Seeds oblong, black, smooth. The flowering period is from April to May.

Most of them are cultivated. The wild population is distributed in Guangdong, Guangxi, Yunnan, Sichuan and Guizhou.

[collection] available at any time.

[pharmacological action] seed oil has a strong diarrhea effect, similar to Croton, but weak. Three to five seeds (shelled and ground) can cause diarrhea, nausea, vomiting and burning sensation in upper abdomen. After oil extraction, it contains toxic protein, which is harmful to blood and can cause poisoning. Some of them can inhibit frog heart, reduce dog blood pressure and inhibit respiration. It can also stimulate the movement of small intestine in rats, and can not be blocked by atropine. The seed also contains hemostatic components, which can significantly shorten the thrombin time, bleeding time and blood coagulation time, but the protein component in the seed has the opposite effect on prolonging the thrombin time.

[nature and taste] Guangxi Chinese herbal medicine: "astringent, slightly cold, toxic. "

[function indications] it is used to treat swelling, pain, fracture, trauma, pruritus, eczema and acute gastroenteritis.

① Color atlas of commonly used Chinese herbal medicine: "clearing away heat, relieving spasm, stopping vomiting, stopping bleeding, discharging pus and generating muscle. It is used for vomiting and diarrhea, and for abdominal itching. "

② Guangxi Chinese herbal medicine: "dispersing blood stasis and detumescence, stopping bleeding, relieving pain, killing insects and relieving itching. "

[usage and dosage] external use: tamping or baking leaves to rub the affected area. Oral administration: fresh leaves (remove petiole) 2 ~ 3 pieces, mash and take juice to fry.

[taboo] Color Atlas of commonly used Chinese herbal medicine: "this plant is poisonous, so it should be used with caution when taken orally. "

[formula selection] ① treatment of bruise and swelling, trauma and bleeding: appropriate amount of fresh leaves of Jatropha curcas, mashed and applied to the affected area. (Guangxi Chinese herbal medicine)

② Treatment of skin itching, eczema: fresh leaves of Jatropha curcas, roasted on the fire until the leaves are soft and rubbed. (Guangxi Chinese herbal medicine)

③ Treatment of various types of fractures: Jatropha curcas in fresh skin or leaves, with copper hammer grass, acanthopanax senticosus, pepper application, fine tamping, wine fried external application. (selected Chinese herbal medicines from Simao, Yunnan)