Hemp leaf

Hemp leaf

(on medicinal properties)

Another name: huomatou.

[source] it is the leaves of cannabis sativa. For plant morphology, please refer to "hemp seed".

[chemical constituents] the leaves of cannabis sativa contain Δ 2-tetrahydrocannabinolic acid, cannabinoid acid and cannabinoid acid. In addition, according to the analysis of the samples from 17 countries, cannabinoid acid accounts for 3.8-41.7% of the acidic part of leaves, which is the main component of leaves. In tropical countries, the content of cannabinoid acid is the lowest at maturity or after maturity, while in Central European countries, it is the highest at immature stage, and in other middle cold and warm countries, the content is between the two. In addition, the contents of these substances can change during storage, heating and illumination. For example, Δ 2-tetrahydrocannabinoic acid can be changed into cannabinoic acid under sunlight, and can also be changed into cannabinoic acid and cannabinol under dark for a long time. Therefore, the cannabinoic acid in the leaves stored for a long time is not its original component, but is produced by the light of Δ 2-tetrahydrocannabinoic acid. Like other dioecious plants, the components of heterosexual plants are often different from each other. In terms of nitrogen content, the total nitrogen and protein nitrogen in male leaves were less than those in female leaves, but there was no significant difference in old leaves. In addition, the water-soluble protein of male leaves contained more arginine, lysine and alanine than that of female leaves, while the water-soluble protein of female leaves contained more histidine, proline and dicarboxylic amino acids.

The content of calcium and magnesium phytate in leaves, stems and buds of hemp is very low, but in pith and flowers, the content of calcium and magnesium phytate is relatively high (equivalent to 150-160 mg%).

The leaves and flowers of hemp contain antibacterial substances. They are resinous substances with acid, insoluble in water, soluble in ether, petroleum ether and other oil solvents

[nature and taste] Compendium: "pungent, poisonous. "

[function indications] treat malaria, asthma, Ascaris.

① "Tang Materia Medica" says: "mash the leaves, wring the juice, taking Wuhe, controlling Ascaris lumbricoides, mashing scorpion venom. "

② "Northeast medicine Zhi": it has analgesic, anesthetic and diuretic effects. "

③ "Chinese medicine and plant illustrated book": "inhale it in tobacco to cure wheezing. "

[usage and dosage] oral administration: mash juice, put into pill and powder. External use: tamping.

[prescription] to treat malaria: Hemp leaves, regardless of their prosperity or decline, are put into the pot and stir fried slowly with gentle and martial fire. Take off the pot and cover it with paper to make the sweat run out. Then grind it into fine powder. Two hours before the onset, adjust it with tea or warm wine. When the patient is transferred to the original sleeping place, it looks like drunk and recovers when he wakes up. Or according to the former method for the end, add shrinkage sand, clove, Aucklandia, tangerine peel for the end, than hemp leaves divided into two half, wine paste for the ball, honey ball can also, Wuzi big. Five or seven pills are often served with tea or wine. (Puji Fang)

According to Guo Wen's Chuang Ke Xin Yao, Wujin powder is used to treat carbuncle, gangrene, swelling, and sores. In the prescription, huomatou and ephedra are used to sweat, so the toxic effect of leaves can be known. It can be used to stop malaria in Puji Fang. "

Chinese PinYin : Ma Ye