Ephedra is "Pharmacopoeia" included China herbs, medicinal sources for dry herbaceous stems ephedra plant ephedra, ephedra ephedra equisetina. Autumn harvest green herbaceous stem, dried. Its sex, temperature, pungent and bitter taste, sweating, dispersing cold, dispersing lung and relieving asthma, and promoting edema and swelling are effective for cold, chest pain, cough, wind edema, bronchial asthma and so on.
Alias: Ephedra Sinica, Ephedra Sinica, Latin name: Ephedra Sinica Stapf, ephedra and ephedra herbs. It is 20-40 centimeters tall, and its stems are short or creeping. There are three species of Ephedra plants of the genus Ephedra sinica (Ephedra: Sinica), ephedra equisetina (Ephedra equisetina) and (Ephedra, intermedia) in ephedra herb shrub, the site is also an important medicinal plant herbaceous stems. The content of alkaloids is rich, and it is the main resource for the extraction of ephedrine. Xylem stem is few and easy to process and extract. Because it is often located in plains, hillsides, riverbeds, grasslands and so on, it is easy to harvest. Because of the strong sweating power of ephedra, it should be avoided or used with caution in external wind cold syndrome, palpitation, insomnia, pulmonary asthenia, cough and asthma. The old people, the body deficiency and the children should use the ephedra. Divergent cold in traditional Chinese medicines (because the taste and color of the name "Compendium of Materia Medica" said: "the taste of hemp, its color is yellow")