Turkey has a rich flora because of its geographical location. Some of these plants have the qualities to be used therapeutically due to their chemical compounds. Crataegus genus, known as Hawthorn, are used against a variety of diseases, mainly cardiovascular diseases, due to the flavonoids they contain. Crataegus x bornmuelleri Zabel, which is hybrid species of C. orientalis and C. tanacetifolia, grows as endemic in Turkey. In this study, C. x bornmuelleri leaves were collected from Beypazari (Ankara - Turkey) district in July 2017. The plant samples have been identified by Prof. Dr. Sukran Kultur (Department of Pharmaceutical Botany, Faculty of Pharmacy, Istanbul University) and deposited in the Herbarium of the Faculty of Pharmacy at Istanbul University (ISTE). 8 flavonoids (2 aglycons and 6 glycosides) were isolated from the leaves of C. x bornmuelleri and these flavonoids were determined by using various spectroscopic tecnuiqs.
Acknowledge: This study was supported by TUBITAK with the project number 117Z750.
Keywords: Crataegus x bornmuelleri, Flavonoids, Medicinal Plants, Turkey.