Huaitong

Huaitong

(Sichuan common Chinese herbal medicine)

[source] it is the rattan or root of Aristolochiaceae.

[plant morphology] Aristolochia hybrida

Vines as long as 4 m, twining in nature. Young shoots and buds densely yellow pilose, pilose when old. Single leaf alternate; ovate heart-shaped, 10-12 cm long, 6-10 cm wide, apex acute to shortly acuminate, sparsely pubescent above, densely hairy below, entire; petiole 3-7 cm long, pilose. Single flower axillary; pedicel about 5 cm long, with an ovate bract about 1 cm long at the lower end; perianth tube curved, pipe like, about 4 cm long, densely yellow pilose, upper end of tube developed into petal like, 3-lobed, yellow, with purple spots; stamen 6, attached to style about 4 mm long; pistil single, ovary inferior, about 1.5 cm long, 6-locular. Capsule cylindrical, 6-7 cm long, 2-3 cm in diameter, with 6 obvious winged edges, 6 petals dehiscent at maturity. The flowering period is from July to August.

It grows under the valley forest or under the hillside forest. It is distributed in Sichuan, Yunnan, Guizhou and Hubei.

[collection] in spring and autumn, the crude vines or roots were collected and dried in the sun.

[chemical constituents] rattan contains β - sitosterol, aristolochic acid, Magnolia alkaloid and acid components.

[nature and taste] Yunnan Chinese herbal medicine: "bitter, cold. "

[Guijing] Sichuan commonly used Chinese herbal medicine: "into the heart, kidney, bladder, small intestine meridian. "

[functions and indications] 1. Yunnan Chinese herbal medicine: "clearing away heat and dampness, removing pus and relieving pain. Treatment of damp heat, adverse urination, urine, vaginal Trichomonas, eczema, urticaria, rheumatoid arthritis pain. "

② "Sichuan commonly used Chinese herbal medicine": "in addition to vexation, antipyretic, line of underwater milk, discharge pus pain, treatment of dampness and heat stagnation, body swelling, five Lin, urine adverse, carbuncle swelling, sores. "

[usage and dosage] oral: decoction, 2-3 yuan.

[taboo] Yunnan Chinese herbal medicine: "it should not be used in frequency of urination, enuresis, spermatorrhea and pregnant women. "