Digitalis extract, digitalis a, B, C

  Eupatorium pratense (scientific name: Corydalis bungeana  turcz
), Other names: Corydalis (flora of Beijing and flora of Inner Mongolia), corydalis Pengshi (flora of Beijing), buzhidi (Atlas of medicinal plants in Northeast China), etc
It is a perennial herb of poppy family, with a height of 10-30 cm
The root is thin and straight, less branched, yellowish brown
The stem is thin and weak, with many branches from the base to the four sides, with edges, grayish green, light hair or sparse growth pilose
Basal leaves are tufted, basal leaves alternate and petiolate
Dingcao has strong adaptability and likes warm and slightly cool climate
Cold tolerance, fear of drought
The soil requirements are not strict, and clay, loam and sandy loam can be planted
It is distributed in Guangdong, Guangxi, Zhejiang, Jiangxi and other places
The dried whole herb is used for medicine
It has the effect of clearing away heat and detoxification
It is mainly used to treat carbuncle, sore, wind heat, cold, bronchitis, hepatitis, enteritis and other diseases

It contains more than 10 alkaloids
Four different alkaloids were obtained from them, including Sophora flavescens, Sophora flavescens, Sophora flavescens and Sophora flavescens
It also contains coumarin lactones, steroidal saponins, phenolic substances, neutral resin and volatile oil