Jiuniushu

Jiuniushu

(drug records of Nanning City)

[alias] jiulonggen and jiuniuzi.

[source] it is the root tuber of Ampelopsis japonica.

[plant morphology] Cayratia japonica, also known as: rhombic stem wild grape, wild grape, zuandiyang.

Perennial grass vines. The root is globose with black epidermis and light white inside. The stem is 2-4 meters high, the branchlets are dark green, bald and clean, and tetragonal. Tendril apex bifurcate, opposite leaves. 5-2.5 cm in length, with broad groove on petiole surface; leaflets long elliptic, ovoid or obovate elliptic, 3-6 cm in length, 2-3 cm in width, apex acuminate or short pointed, margin front half sparsely serrate, base slightly round or broadly cuneate, dark green above, green below, 5-7 pairs of lateral veins, reaching to the apex of leaf margin, petiole 4-8 mm long; Stipules 2, triangular. Compound umbel; peduncle 2-3 cm long; sometimes with 2 bracts; perianth 4-piece, light green with white, ovate triangle, about 2.5 mm long; stamens 8, filaments short, anthers small, yellow; pistil 1, style short, stigma 4-lobed. Berries round, ca. 6 mm in diam., blue when ripe. 1-2 seeds. The flowering period is from April to June. The fruit period is from November to December.

Born in the stream, valley, forest edge, village shrubs. Distribution in Guangdong, Guangxi, Fujian, Taiwan, Zhejiang, Hubei, Hunan, Shandong and other places.

[collection] it can be harvested all year round, sliced and dried in the sun.

[nature and taste] Nanning medical records: "sweet, flat, non-toxic. "

[functions and indications] Journal of medicine of Nanning City: "moistening the lung, relieving cough and resolving phlegm. Treatment of tuberculosis, cough, blood collapse. "

[usage and dosage] oral: decoction, 2-5 yuan.