Polygonum hydropiper

Polygonum hydropiper

(notes on materia medica)

[synonym] Sijiqing (a textual research on the name of plants) and Polygonum hydropiper (a list of medicinal plants in Guangxi).

[source] it is the whole grass or root of Polygonum hydropiper.

[plant morphology] Polygonum hydropiper

Annual herb, 40-100 cm high. Stem erect, sparsely pubescent or subglabrous. Leaves lanceolate, 8-15 cm long, 1.5-3 cm wide, apex acuminate, base narrow, sparsely pubescent on both sides, especially on the edge and midvein; stipules tubular, 1.5-2 cm long, membranous, densely pubescent, with long and thick eyelashes at the apex, longer than or equal to stipules; petiole about 1.0 m long, densely pubescent. Spikes, 3-10 cm long, terminal or axillary, slightly branched; pedicels sparsely pubescent or nearly glabrous; bracts sheathlike, membranous; perianth 5-lobed, white or reddish; stamens 5-8. Achenes ovate, 3-ribbed, black, glossy. It blooms in autumn.

It grows near water, field, roadside wetland and under forest. It is distributed in Jiangsu, Zhejiang, Anhui, Fujian, Taiwan, Guangxi, Guangdong, Hubei, Sichuan, Guizhou, Yunnan, etc.

[nature and taste] Compendium: "pungent, warm, toxic. "

[function and indications] 1. In the collection of materia medica: "it is mainly used to treat carbuncle, fistula and scrofula, smash it into sores, induce pus and blood, and generate muscle. It can also be used to wash sores with soup and treat beriberi with foot washing. "

② "Taking roots and applying wounds" in the book of the names and facts of plants. "

③ "Guangxi medicine plant directory": "detumescence, detoxification, treatment of skin diseases. "