Verbena

Herba Verbenae

(English) European Verbena Herb

Alias ​​iron horse whip, purple top of the bud grass, wild Nepeta.

The source is the aerial part of Verbena officinalis L. Verbena.

Perennial herbaceous plant morphology, usually 30-80cm high. The upper part of the stalk is square, and the old part is lower and rounder. Leaves opposite, ovate to shortly rounded, 2-8 cm long, 1–4 cm wide, with coarse hair on both sides, coarse serrations or nicks at the edges, sessile stem leaves, mostly 3 deeply lobed, sometimes pinnate, lobate Irregular serrations. Spikes terminal or born in upper leaf axils, usually whip during flowering, each flower 1-foliolate, sepals slightly shorter than constrictor, outside hairy; calyx tubular, 5-toothed; corolla tube, lilac or blue , Nearly 2-lipped; stamens 4, 2 strong; ovary 4-locular, 1 ovule per locule. Split into four oblong nutlets when ripe. Flowering from June to August, fruiting period from July to November.

Health roadside, village edge, field, hillside. The main production Hubei, Jiangsu, Guangxi, Guizhou.

The harvesting is carried out at the time of flowering from June to August, removing impurities and drying.

Chemical composition of the whole grass contains verbenaline (verbenaliney) 5-hydroxy Verbena; another amygdalin, tannins; leaves and adenosides (adenoside), β-carotene.

It is cool and bitter.

Indications of active blood stasis, cut malaria, detoxification, water swelling. For the accumulation of dysentery, dysmenorrhea, malaria, throat, bloated, edema, hot shower.

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