Jingangtengtou

Jingangtengtou

(commonly used Chinese herbal medicine in Sichuan)

[synonym] tielingjiao, fanbatuo and lengfanba (commonly used Chinese herbal medicine in Sichuan).

[source] it is the rhizome and tender leaf of Smilax China, a Liliaceae plant.

[plant morphology] Smilax China

Deciduous vine like shrub. The rhizome is massive, mostly transverse, with dilated and hard woody caltrop like protuberances, with hard fine roots at the apex, with pale yellow appearance and reddish section. Stem hard, there are inverted or plain hard prickles. Leaves alternate, leathery; leaves oblong to narrowly oblong, or ovoid, 3.5-8 cm long, 1.8-4.5 cm wide, apex acuminate or obtuse, base broadly cuneate, entire, upper green, glossy, lower pink white, veins 3; petiole 1-1.2 cm long; base sheathed, with 2 tendrils at the top of sheath. Umbel axillary; unisexual, allotype; total petiole 1.5-2 cm long, petiole 1-1.4 cm long; male perianth 6, light green yellow, long elliptic, stamen 6; female flower 4 mm long, staminode 6, ovary superior, long elliptic; stigma 3, involute. Berries globose, bluish black, ca. 7 mm in diam. The flowering period is April. The fruit period is from July to August.

It grows under hillside forest or in shrub forest. It is distributed in Jiangsu, Anhui, Zhejiang, Fujian, Jiangxi, Hunan, Hubei, Sichuan, Guizhou, Henan and Shaanxi.

[collection] the roots and stems can be harvested all year round, and the leaves can be harvested in spring and dried in the sun.

[chemical composition] the root contains 55.8% starch, 5.56% crude protein and 0.22% crude fat.

[nature and taste] common Chinese herbal medicine in Sichuan: "sweet, flat. "

[functions and indications] common Chinese herbal medicine in Sichuan: "clearing away heat, eliminating wind and poison. Treatment of collapse zone, blood drenching, scrofula, traumatic injury. Tender leaf: cure acne. "

[usage and dosage] oral administration: decoction, 0.5-1 Liang; or soaking in wine. External use: tamping.