Alias: bamboo, bamboo grass, grass, black ants of polygonum.
Plant morphology: annual herbaceous, tall 10 ~ 40cm, often with white; stems tufted, prostrate or obliquely ascending, green, have grooves, Ye Jingsheng, leaves linear to lanceolate, long and 1 ~ 4cm, width of 6 ~ 10cm, apex obtuse or acute, base cuneate, subsessile; ocrea membranous, lower brown, upper transparent white, obviously veined. Take 1 ~ 5 fascicled leaf axils, expose the ocrea, pedicels short, base the Ministry has joint; perianth 5 deeply lobed, lobes oblong, dark green, margin white or pale red; stamens 8; style 3 crack. Achenes ovoid, longer than 2mm, surface angled, brown or black, with inconspicuous dots. Flowering and fruiting period from 5 to October.
Born in the fields, roadsides. In most parts of the country.
Sampling: the summer harvest, removing impurities and root, dried.
Chemical constituents of Polygonum aviculare: containing glycosides (avicularin), quercitrin, caffeic acid, chlorogenic acid, coumaric acid, oxalic acid, D - catechin.
Taste: slightly cold, bitter in taste.
Medical network www.PharmNet.com.cn finishing
Functions: urination, insecticidal, itching. Bladder for relining, scanty dark urine, dripping and pain, skin eczema, pruritus vulvae belt.
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