Chinese medicine "Da Jiugu Niu" is the root of the plant Ampelopsis sinica, which belongs to the family Aceraceae. It grows in sunny grass slopes or shrubs at an altitude of 1100-2300m. It is distributed in Sichuan, Yunnan and other places. Da Jiugu Niu can treat lung heat cough!
[Treating lung heat cough with Da Jiugu Niu]
Take five qian (about 15 grams) of Da Jiugu Niu root (peeled), two qian (about 6 grams) of Xiangling grass, and two qian (about 6 grams) of Wacao. Grind them into powder, take two qian (about 6 grams) each time, and take it twice a day.
Chinese medicine believes that Da Jiugu Niu has the effects of clearing heat, detoxifying, relieving cough, and relieving pain. It is commonly used for lung heat cough, mastitis, parotitis, carbuncle, and trauma.
"Compilation of National Chinese Herbal Medicine": "Clears heat, detoxifies, relieves pain, and relieves cough. It is used for lung heat cough, parotitis, mastitis, and carbuncle."
[Characteristics of Da Jiugu Niu]
Identification characteristics
Cylindrical, 3.7-7.5cm long, grayish-white or light brown on the surface, opaque. If the outer skin is not removed, there may be 3-4 rings of ring marks and longitudinal lines, and one layer of outer skin can be peeled off, resembling fibrous. Obvious knife marks can be seen. At the top, there is a depression or a protruding residual stem mark. It is firm in texture, not easy to break, and the section is uneven and resembles a wooden texture. It has a slight odor and a slightly bitter taste.
Microscopic identification
Powder characteristics: light brown.
① Numerous starch grains, single or compound. Single grains are round, helmet-shaped, or axe-shaped, a few are irregular quadrilaterals, with a diameter of 3-8-13μm. Larger starch grains occasionally have a "cross" shaped hilum, and the layers are not obvious. Compound grains are composed of 2-4 sub-grains; sub-grains are often helmet-shaped, semi-circular or triangular.
② Calcium oxalate cluster crystals exist in the phloem and thin-walled cells of the cortex, with a flower-like or pointed petal shape, with a diameter of 8-26μm.
③ The vessels are reticulate, with a diameter of up to 80μm, with inclined end walls and elongated pits; fragments of vessels with large pitted pits can also be seen.
④ The wood parenchyma is in the form of block pieces, with cells that are rectangular or elongated and slightly thickened walls.
[Images of Da Jiugu Niu]
