Robinia flower

Robinia flower

(Guizhou folk medicine Collection)

[source] it is the flower of Robinia pseudoacacia.

[plant morphology] Robinia pseudoacacia, also known as Robinia pseudoacacia, Hu Teng.

Deciduous trees or shrubs, up to about 25 meters high. The bark is brown with deep grooves; the branches are spiny. Leaves alternate; odd pinnate compound leaves; petiole 1-3 cm long, base expanded; stipules changed to needling; leaflets 7-19, elliptic to long ovate, or oblong lanceolate, 2.5-4.5 cm long, apex rounded or obtuse, sometimes concave, with small spiny tips, base rounded or broadly cuneate, entire, smooth or pubescent when young, leaf thin, bright green. Inflorescence 2-10 cm long, staminate; inflorescence 2-20 cm long, staminate; inflorescence densely lanceolate, staminate; inflorescence 2-20 cm long, staminate Villous. The pods are linear, oblong and oblate, 8-12cm long, reddish brown at maturity, and contain 4-10 seeds. Seeds reniform, brown with minute black spots. It blooms in early summer.

It is distributed in the north and south of China.

[collection] from June to July.

[chemical constituents] the flower contains concanavalic acid, tannin, flavonoids and ricin.

The nectar contains 0.37% sugar and amino acids such as aspartic acid, glutamic acid, histidine, arginine, lysine, ornithine, leucine, phenylalanine, valine, tyrosine, proline and threonine. The content is 0.002-4.786 mg% of the dry weight of nectar.

The leaves contain rhamnose glucoside of Robinia pseudoacacia, rhamnose xylose glucoside of Robinia pseudoacacia, rhamnose xylose glucoside of apigenin, rhamnose xylose glucoside of apigenin, rhamnose xylose glucoside of apigenin, n-eicosanol and concanavalic acid. Fresh leaves contain 119.3 mg% vitamin C.

Concanavalic acid was found in immature seeds and their outer bark. The seed contains plant lectin. The fatty acid composition of seed oil is: linoleic acid 53.18%, oleic acid 24.26%, linolenic acid 12.04%, palmitic acid 4.72%, arachidic acid 3.31%, stearic acid 2.35%, trace amount of eicosanoic acid and eicosanoic acid.

The bark is poisonous and contains toxic proteins and glycosides. The heartwood contains Robinia pseudoacacia B, dihydrorobinia pseudoacacia B, β - Dihydroxybenzoic acid, β - Dihydroxybenzoic acid methyl ester, 4,2 ", 4" - trihydroxychalcone, liquiritigenin, purpurin, purpurin, 3,4,5,2 ", 4" - pentahydroxychalcone.

[functions and indications] Guizhou folk medicine collection: "it can not only stop the blood under the large intestine and hemoptysis, but also treat women's red collapse. "

[usage and dosage] oral: decoction, 3-5 yuan.

[poisoning] mistakenly using young buds and leaves of Sophora japonica as non-staple food can lead to poisoning due to the body's allergy to Sophora japonica, improper cooking, excessive consumption and sunlight after eating. 23 cases of poisoning were reported. Most of the poisoning occurred between 2 and 20 days after eating. The symptoms were swelling of face and hands, local pricking pain, burning pain or distending pain, itching and general weakness. Rescue method: take 2 liang of vinegar and 4 liang of dandelion, temporarily avoid sunlight, and relieve in 2-3 days.