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Meconopsis horridula is one of alpine plants belonging to family Papaveraceae, mainly distributed in Himalaya Range area. M. horridula is a rare alpine flower, and is a kind of traditional Tibetan medicine, which has been included in more than 40 compound formulae, having efficacies of clearing away heat and alleviating pain, activating blood circulation to remove stasis, traditionally used for the treatment of fractures, injuries, and chest and back pains. Modern research shows that the whole plant of M. horridula contains alkaloids, flavonoids, and terpenes, and its pharmacological activities including antitumor, antivirus and myocardial protection etc. However, due to various factors, the current research of M.horridula still faces many challenges. This paper summaries herein a progress of MH on its ecological resources, traditional uses, and studies on chemical constituents and pharmacological effects, hopefully to provide a useful reference for the ecological protection and applications.

It was estimated that about 428 species of genus Corydalis are distributed all worldwide, with about 298, especially 10 groups and 219 species being uniquely spread in China. The genus Corydalis have been widely employed as folk medicines in China, especially as traditional Tibetan medicines, for treatment of fever, hepatitis, edema, gastritis, cholecystitis, hypertension and other diseases. The phytochemical studies revealed that isoquinoline alkaloids are its major bioactive ingredients. The extensive biological researches suggested its pharmacological activities and clinic applications against cardiovascular diseases and central nervous system, antibacterial activities, analgesic effects, anti-inflammatory, anti-oxidation and anti-injury for hepatocyte, and so on. As an effort in promoting the research of pharmacodynamic ingredients, this article presents an overview focusing on the distribution, phytochemical and pharmacological results of Corydalis species that have been applied in traditional Tibetan medicinal, hopefully to provide a reference for the new Tibetan medicine development from Corydalis plant resource.