Beech bark

Beech bark

(bielu)

[source] the bark of Zelkova schneideriana (Ulmaceae) or its homologous plants.

[plant morphology] big leaf? Tree, also known as beech elm and blood beech.

Trees, up to 25 m high. 1-year-old branches densely pilose. Leaves elliptic ovate or narrowly ovate to ovate lanceolate, 2-8 cm long, apex acuminate, base broadly cuneate or suborbicular, margin undulate serrate, obtuse, upper rough, lower densely gray pilose; subsessile or shortly stipitate. The flowers are polygamous, the male flowers are clustered in the leaf axils and bract axils at the lower part of the new branch, the female flowers are solitary or several clustered, the leaf axils at the upper part of the new branch; without petals; the calyx is bell shaped, 4-5-lobed; the stamens and sepals are the same number but opposite; the female flower has only one pistil, the ovary is superior, and the style is divided. The upper part of nut is oblique, 2.5-4 mm in diameter. The flowering period is from March to April. The fruit period is from October to November.

It is distributed in Jiangsu, Zhejiang, Hunan, Anhui, Guangdong, Guangxi, Yunnan and other places.

The leaves of this plant (Zelkova schneideriana) are also used for medicine. Please refer to the special section for details.

[processing] Leigong's treatise on Processing: "all envoys (beech bark) should be peeled off with an axe, then the coarse bark should be removed, filed, steamed, and baked. "

[Xing Wei] 1. Bielu: "Da Han. "

② "Rihuazi Materia Medica": "bitter taste, non-toxic. "

Functions and indications: clearing away heat and promoting diuresis. Treatment of headache, heat toxicity, dysentery, edema.

① Bielu: "the main headache, heat knot in the stomach. "

② Tao Hongjing: "drink in summer, get rid of heat. "

③ "Tang Materia Medica": "boiling juice, treating water and cutting off benefit. "

④ "Rihuazi Materia Medica": "Xiashui Qi, Zhire dysentery, tocolysis, main pregnancy abdominal pain. "The bark of beech can cure heat, toxic wind and swelling. "

[usage and dosage] oral administration: decoction, 1-3 yuan. External use: wash with boiling water.

[prescription selection] ① for infantile dysentery: beech bark 12 points, Trichosanthes kirilowii and poria cocos 8 points, ginseng 6 points, corn 2 points. On the five flavors, cut, with three liters of water, boil a liter of two, to dross, warm clothing, size and service. (the second son of beech skin in gujinlu prescription)

② Treatment of infantile dysentery: rhinoceros horn 12 points (chip), beech skin 20 points (fried, cut). On the two flavors, three liters of water, boiling a liter, the size of the service. (decoction of rhinoceros horn and beech skin in gujinlu prescription)

③ Treatment of pain and body edema: daily drink of beech bark juice. (Sheng Hui Fang)

④ Rule (eyes) flying blood red pulse: beech skin (to thick skin, cut) two liang, ancient seven Wen. On the two flavors, with a liter of water, decoct Qihe, remove dross, hot wash, cold then warm (Shengji Zonglu)