Guangshiwei

light

(commonly used Chinese herbal medicine in Sichuan)

[synonym] cowhide herb, Dawei, shilianjiang, Yanlian chicken tail (commonly used Chinese herbal medicine in Sichuan), dayudao (folk medicine materials in Hunan).

[source] it is the whole grass with roots of the aquatic plant Pyrrosia guangshiwei.

[plant morphology] Pyrrosia guangshiwei

Plant height 25-60 cm. Rhizome short and thick, oblique or transverse, densely covered with scales; scales linear lanceolate, brown, irregular edge. The leaf blade is lanceolate, 20-50 cm long, 2-4 cm wide, apex acuminate, base gradually narrowed, entire; the leaf is thick leathery, light green, with black spots on the top, sometimes with a little off stellate hairs on the bottom, initially white stellate hairs on the bottom, and finally completely glabrous; the lateral veins are slightly obvious. Sporangia were distributed above the middle of leaves.

It is distributed in Sichuan, Yunnan, Guizhou, Hunan, Guangxi, Guangdong and Hubei.

[collection] it can be harvested all year round.

[nature and taste] common Chinese herbal medicine in Sichuan: "it is slightly cold in nature and slightly bitter and pungent in taste. "

[functions and indications] 1. Common Chinese herbal medicine in Sichuan: "dehumidification, purging lung heat, diuresis. It is not good for cough, hematemesis and urination. "

② To cure the scrofula. (Sichuan)

[usage and dosage] oral administration: decoction, 0.5-1 Liang.