(records of yam planting in Tianmu, Zhejiang)
[synonyms] Xuewu, jianxuefenghou (discussion on varieties of Chinese medicinal materials), manwutou (records of Tianmu yam in Zhejiang), tengwu and Yangjiaoqi (ACTA Pharmaceutica Sinica 12 (10): 6841965).
[source] it is the tuberous root of Aconitum cucurbitae.
[plant morphology] Aconitum cucurbitae
Perennial twining herbs. The root tuber is obconic and can be more than 6 cm long. The stem is purple, smooth and branched on the sunny side. The leaves are alternate, broadly ovate, 5.5-7.5cm long and 5.5-6.5cm wide; the leaves are palmately 3-lobed, the central lobe is the largest, ladder shaped rhombic or ovate elliptic, the top is sharp, the lateral lobes are obliquely ovate, the base is divided into 2 lobes, the lobes are sparsely crenate; the leaf base is truncated or shallow heart-shaped, both sides are smooth and glabrous; the petiole is 2-3cm long. Inflorescence with 2-12 flowers, bracteoles strip; sepals 5, blue purple, petal shaped, upper sepal helmet shaped, with short beak, lateral sepal obovate, wide spoon shaped, lower sepal ovate elliptic, except the inner surface of lateral sepal sparsely white long hair, the rest are smooth and glabrous; petals 2, glabrous, hidden in the galea, the lower part of the nectary body expanded to the base of the crack nearly truncate, distance 2 mm long: stamens many; heart Skin 5, glabrous or sparsely puberulent. Follicles long cylindric, 1.2-1.5 cm long. The flowering period is from August to September. The fruit period is from October to November.
It grows in the trees on the hillside or in the wet grass on the edge of the forest. It is distributed in Sichuan, Hubei, Hunan, Shaanxi, Henan, Jiangsu, Zhejiang and other places.
[collection] from July to September, the fibrous roots were removed and dried in the sun.
[processing] soak and bleach with water until it has a slightly numb taste. Stir and steam with liquorice and black bean decoctions or boil them thoroughly. Then take them out and dry them in the sun.
[nature and taste] records of yam planting in Tianmu, Zhejiang Province: "pungent, warm and poisonous. "
[function indications] antispasmodic, hypotensive, sweating, diuretic. Treatment of lumbago and leg pain, nameless swelling and poison, traumatic injury, tinea.
① "Treatise on varieties of Chinese medicinal materials": "treating tuberculosis and injury. Take wine to treat lumbago and leg pain. "
② "Zhejiang Tianmu yam Zhi": it can relieve spasm and calm down. Lowering blood pressure, sweating, diuresis. "
[usage and dosage] oral administration: decoct soup, 3-5 minutes; soak wine or grind powder for powder. External use: grinding juice or grinding powder.
[taboo] this product is highly toxic and should not be taken orally without processing.
[prescription selection] ① treatment of unknown swelling toxin: apply Aconitum carmichaeli with rice soup to the affected area; if it has been ulcerated, the head should be left. (records of yam planting in Tianmu, Zhejiang)
② Treatment of traumatic injuries: five points of Aconitum vine. Fry in water, take with wine; or boil the root with bean curd, dry in the sun, stir fry with wine and grind into fine powder, swallow 2 minutes each time. (records of yam planting in Tianmu, Zhejiang)
③ Treatment of tinea: Teng Aconitum, Yan Mo water transfer application. (outline of Chinese medicinal plants)
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