Pseudocassava

Pseudocassava

(records of Guangxi Traditional Chinese Medicine)

[synonym] qingmuxiang, false tonghucheng, Tuxiang.

[source] the root of Aristolochiaceae.

[plant morphology] Aristolochia ovata

Climbing subshrub, glabrous. Leaves alternate, ovate to oblong ovate, 6-21 cm long, 5.5-14.5 cm wide, apex acuminate, base cordate, both sides auricular, entire; petiole 3-12 cm long, ventral surface shallowly furrowed. Raceme axillary, petiole about 1 cm long, hairy; bract 1, ovate, small, margin densely hairy; calyx tubular, hairy, 5-7.7 cm long, dark purple, the lower part expanded into a ball, inner wall with four tufts of pubescence, neck contracted, curved, front end side open, trumpet shaped, with 5 veins; stamen 6, combined with style; style 6, deeply split, cone pointed, ovary Long columnar, 6-sided, inferior, 6-locular. Capsule suborbicular, ca. 4 cm in diameter. Seeds numerous, flat and thin, obtuse triangular, margin extending, pale grayish yellow wings. The flowering period is from May to June. The fruit period is from September to October.

In or near broad-leaved forests below the mountainside. It is distributed in the south of China.

[collection] in winter, the roots were dug, the aboveground parts and fine roots were removed, washed, cut into several sections and dried in the sun.

[herbal medicine] the root is cylindrical, slightly curved, different in length, about 30 cm in length, 1-3 cm in diameter, dark gray yellow on the surface, with fine wrinkles, uneven fracture surface, thin skin, 1-4 mm in thickness, milky white rays on the wood, narrow and thin rays on the wood, yellowish light on the wood, with fine porous ducts. The gas is slightly fragrant and the taste is slightly bitter.

[flavor] slightly bitter and pungent, cool and non-toxic.

[meridian tropism] entering the lung and heart meridians.

[function indications] clearing away heat and toxin. It is used to treat unknown swelling and toxin, scrofula, furuncle, sore, snake and tiger bite and dysentery.

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

[should avoid] Qi deficiency should not be used.