night willow herb

night willow herb

(Guizhou herbal medicine)

Evening primrose.

[source] it is the root of Oenothera erythrocalyx.

[plant morphology] Oenothera erythrocalyx

Herbs Biennial. The stem is erect, about 1 meter high, with long red hairs at the base. Leaves alternate, petiolate in the lower part of stem, nearly sessile in the upper part; leaves elliptic lanceolate, 6-9 cm long, 1.5-3 cm wide, apex short pointed, base cuneate, margin sparsely serrate, both sides covered with white pilose. Flowers solitary in the axils of branches, arranged in sparse spikes; calyx tube slender, apex 4-lobed, lobes lanceolate, reflexed; petals 4-yellow, obovate or obcordate; stigma 4-lobed. Capsule cylindric, apex narrow, covered with long white hairs. The flowering period is from July to August.

Most of them are cultivated in gardens.

[collection] harvest in autumn.

Sweet and warm.

Functions and indications: strengthening tendons and bones, dispelling wind and removing dampness.

[selection] 1. To treat rheumatism: one or two of them are noctuia, five of them are iron chopsticks. Make wine clothes, twice a day, five yuan each time.

② Treatment of muscle and bone pain: jasmine, sanxuecao, touguxiao, big horseshoe, bayanjiang each five money. Simmer water clothes.