1. Aliases

Da Ye Cai, Suo Luo Cao, Long scale Cao, Di Suo Cao, Jin Long Cao, Long scale Cao, Di Bian Bai.
2. Plant morphology
Perennial evergreen herbs. The main stem is upright, about 35 centimeters tall, with edges, and often roots at the branching point; The lateral branches are dense and often branched. The leaves are dark green above and grayish green below, dimorphic, dense, with two rows of middle leaves, rectangular in shape, keel shaped, with short spikes and fine teeth at the edges, alternating and pointing towards the top of the branches; Two rows of lateral leaves, ovate rectangular circular, blunt headed, with micro teeth on the upper edge and a complete lower edge, extending diagonally to both sides of the branch. Spore sac grows at the top of the branch, often with 2 spikes and a quadrilateral shape; Spore leaves are ovoid triangular in shape, with gradually pointed tips and fine teeth on the edges. They are arranged in a 4-row, alternating tile like arrangement; The spore sac is round.
3. Origin distribution
Born on acidic soil under dense forests. Mainly produced in the southwestern and southeastern regions of China.
4. Harvesting and processing
Harvest after autumn, wash and sun dry. Used raw or fresh.
5. Characteristics of medicinal herbs
The entire length of this product is 20-30 centimeters. The lower stem is prostrate, slightly flattened, with angular lines, often bearing slender roots at nodes, and the root tip is often whisker shaped. The lower leaves of the main shaft are attached or sometimes detached; The upper part is multi branched, with deep yellow green leaves above and light gray yellow green leaves below, dimorphic, with two rows on the back and abdomen, and obvious main ribs; The lateral lobe (dorsal lobe) is oval shaped and round in shape, with a blunt tip and asymmetric sides. It is 4-5 millimeters long and about 2 millimeters wide, with slight serrations on the upper edge; Lower margin full margin; The middle lobe (ventral lobe) is oval shaped, with slightly asymmetrical tips and serrated edges. This product has thin and flexible feathers. No odor, light taste.
6. Nature, taste, and meridian tropism
Cold in nature, sweet, slightly bitter, and astringent in taste. Return to the lung meridian, stomach meridian, and liver meridian.
7. Effect and function
Soothing the wind, clearing the lungs and relieving cough, detoxifying and relieving pain, clearing swelling and anti-cancer, and promoting diuresis. A heat clearing and detoxifying medicine belonging to the subcategory of heat clearing drugs.
8. Clinical applications
Dosage 15-30 grams (fresh 30-60 grams), decoct and take. Apply an appropriate amount externally and compact. Used to treat external cough, lung heat cough, sore throat, rheumatic pain, muscle and bone fracture, carbuncle and toxin, damp heat jaundice, chorionic epithelial carcinoma, lung cancer, liver cancer, throat cancer, and gastrointestinal cancer.
9. Pharmacological research
Has a good inhibitory effect on mouse sarcoma-180; Although the inhibitory effect on experimental liver cancer is not significant, it can significantly prolong the survival days of animals; The therapeutic effect on improving symptoms of silicosis, preventing and delaying disease progression is equivalent to that of quetiapine, with minimal side effects.
10. Chemical composition
Contains alkaloids: barley malt alkaloid, barley malt alkaloid O-alpha-L-pyranorhamnoside, N-methyltyramine O-alpha-L-P-pyranorhamnoside, (E) - barley malt alkaloid - (6-O-cinnamoyl - β - D-glucopyranosyl) - (1-3) - α - L-pyranorhamnoside. Flavonoids: Biflavonoid compounds such as Suaeda paniculata, Hevea brasiliensis, and apigenin. It also contains coumarin, beta sitosterol, and stearic acid.
11. Taboos for use
Not yet clear, use medication with caution.
12. Compatibility prescription
① Treatment for pneumonia, acute tonsillitis, conjunctivitis: 30g of Shishang Bai, 30g of pig lean meat added. Boiled in water. (National Compilation of Chinese Herbal Medicine)
② Treatment of red swelling and pain in the eyes: 30g of Shishang Bai, 30g of Qianli Guang, and 15g of Dandelion. Boiled in water. (Sichuan Journal of Traditional Chinese Medicine, 1979 edition)
③ Treating rheumatism: Take an equal amount of large leaf vegetables and tilapia. Wash with boiling water and smoke. (Guizhou Folk Medicine)
④ Treatment for choriocarcinoma, lung cancer, pharyngeal cancer, and gastrointestinal cancer: 300g of Shishang Bai. Wash with medicine, boil with water twice for 3 hours each time, combine the decoction, filter, concentrate, add ethanol to 80% alcohol content, let stand for 24 hours, filter to remove sediment, recover ethanol from the filtrate, concentrate into a paste, add an appropriate amount of starch to make it soft, granulate, dry, and press into tablets. Prepare 1000 tablets, each containing 0.3 grams of native medicine. Oral administration, 2.1 grams per dose for adults, 3 times a day. (Sichuan Journal of Traditional Chinese Medicine, 1979 edition, Shi Shangbai tablets)
⑤ Treatment for chronic hepatitis: 30g each of dark green Selaginella and white snake tongue grass. Boiled in water. (Fujian Pharmacopoeia)
The content of the article is for clinical reference only. Non professionals in traditional Chinese medicine are not allowed to try medication.