flax

flax

(Ben Cao Tu Jing)

[synonyms] Yama (materia medica tujing), flax rice (Diannan materia medica), Shanxi flax (a textual research on the names and facts of plants), shanzhima, huzhima (Chinese medicinal plant records), flax (Kunming folk commonly used herbs).

[source] it is the root, stem and leaf of flax.

[plant morphology] flax

Annual herbs. 25-90 cm or higher. Stem erect, base slightly lignified, less branched. Leaves alternate; sessile or nearly sessile; leaf blade linear or linear lanceolate, 1.8-3.2 cm long, 2-5 mm wide, entire, veins usually 3. The flowers are mostly at the top of branches and the axils of upper leaves; each leaf has one flower axillary, about 1.5 cm in diameter; pedicel is 1.8-3 cm long; sepals are 5, green, ovate or ovate elliptic, about 3 / 4 of corolla; petals are 5, blue white or white, obovate or broadly obovate, 7-10 mm long, apex suborbicular, slightly concave, edge slightly wavy notched; stamens are 5, anthers are linear, staminode Pistil 5; pistil 1, ovary elliptic ovate, 5-locular, style 5, linear, separate, stigma capitate. Capsule globose or slightly oblate, ca. 8 mm, apically pointed, apically dehiscent at maturity. Seeds ovate or elliptic ovate, flat, ca. 6 mm long. The flowering period is from June to July. The fruit period is from July to September.

It is cultivated in most parts of the country.

The seeds of this plant (flaxseed) are also used for medicine. Please refer to the special section for details.

[chemical constituents] the stems and leaves contain flavonoids with carbon bonds such as orientin, isoorientin, Vitexin and isovitexin. The content of linolenic Picroside is the highest in the flowers after fertilization, followed by the stem, fruit, root and cotyledon. The content of linolenic Picroside is very low in the leaves. The content of immature plants is much higher than that of mature plants, which can be destroyed by heating. Hydrolysis produces hydrocyanic acid, glucose and acetone.

[pharmacological action] please refer to "yamazi".

[nature and taste] 1. In the south of Yunnan Materia Medica, it is sweet and pungent in taste, flat in nature and non-toxic. "

② "Kunming folk commonly used herbal medicine": "seeds and roots, flat, slightly sweet taste. "

Functions and indications: calming the liver, tonifying deficiency and promoting blood circulation. Treatment of chronic hepatitis, orchitis, sprain; stem and leaf: treatment of liver wind, headache, knife bleeding.

① "Diannan Materia Medica": "root: tonifying vital energy, black beard and black hair; stem: treating head wind pain; leaf: treating wind evil into orifices, mouth can't speak. "

② "Common folk herbs in Kunming": "seeds and roots: soothing liver, soothing Qi, moistening intestines. Treatment of orchitis, hernia, chronic hepatitis, liver wind headache, constipation. "

[usage and dosage] oral administration: root, decoction, 0.5-1 Liang. External use: mash or grind the end of the application.

[selection] ① treatment of traumatic injury: flax root plus Cyperus or asarum, the same as mashing external application. (Jiangxi herbal medicine manual)

② Treatment of bleeding: fresh flax leaves mashed or leaf grinding powder, add a little borneol topical. (Jiangxi herbal medicine manual)

Chinese PinYin : Ya Ma