Old yangteng

Old yangteng

(illustrated records of medicinal plants in Guangxi)

[synonyms] laoyazui and Mao Qingcai (Nanning medical records), nankushen (Guangzhou army's Manual of commonly used Chinese herbal medicine), milkvine, dada, hongmalianan and huyinteng (main toxic plants in South China), maoyazui (Guangxi Chinese herbal medicine).

[source] it is the root or leaf of lepiadaceae.

[plant morphology] horse saddle

Shrubby vines with milk. Stems purplish brown, rusty pilose. Leaves opposite, oblong to obovate, 8-14 cm long and 5-7 cm wide. Base subcordate auriculate, both surfaces rust colored pilose, thick papery, abaxial veins protruding; petiole 7 mm long. Cymes axillary, bifurcate, petiole ca. 4 mm, calyx 5-lobed, lobes ovate triangular, ca. 1 mm, hairy; corolla 5-lobed, lobes ovate, ca. 4 mm, outer green, inner purple; corona linear, ca. 3 mm, connate with filament base; stamens 5; ovary 2-locular, style short, stigma discoid, purple. Follicles dichotomous, widely spreading, dark brown, with yellowish brown pubescence; seeds numerous, oblong, with white hairs. The flowering period is from August to October. The fruit period is from October to December.

Most of them grow in the valley, sparse forest or bush. Distributed in Guangdong, Guangxi, Yunnan and other places.

[collection] it can be harvested all year round, dried or fresh.

[herbal medicine] the root is cylindrical, curved, with dark brown surface, nodular processes and irregular longitudinal wrinkles. It is hard with uneven cross section, brown skin on the cross section, light yellow wood, thin rays, prominent vessels and small pores.

[nature and taste] 1. Guangxi medical plant records: "it tastes bitter and slightly sweet, and its nature is cool. "

② "Bitter, cold. "

[function indications] clearing away heat and toxin. For diarrhea, dysentery, malaria, cold, stomachache and drenching.

① "Treatment of acute and chronic enteritis, heart and stomach qi pain, red and white dysentery, exogenous Sha Qi, snake injury. "

② "Clearing away heat and detoxification" is one of the most important contents in Nanning medical records. It can treat fever, malaria, drenching and rash. "

③ Guangzhou army's "commonly used Chinese herbal medicine manual": "treat cold and fever, bruise, swelling and pain, backache and chronic nephritis. "

[usage and dosage] oral administration: decoction, 1-2 Qian; or grinding powder (0.5-1 Qian). External use: tamping.

[taboo] "it should not be used in the case of deficiency cold" according to Nanning medical records. "

[selected formula] ① for acute and chronic enteritis, heart and stomach qi pain, exogenous cold and heat: guyangteng root, dried in the sun. Five to one yuan for each service, with boiled water, twice a day.

② Treatment of red and white dysentery: one or two roots of old goat vine. Fried Soup for honey is five yuan, twice a day.

③ Treatment of snakebite: old sheep vine leaves two Liang. Mash it, make two liang of wine, wring one or two of wine, take it orally. Apply the residue around the wound. (1) the following prescriptions are published in Guangxi Medical Plant atlas.)

④ Cure ulcer disease: ancient yangteng, mountain dark book, equal quantity. Dry the powder in the sun. One gram each time, three to four times a day, orally for one month. (prescription collection of new Chinese herbal medicine in Guangxi)