Corylus heterophylla Flowers are the staminate flowers of filbert. It has been well defined that Corylus heterophylla Flowers have many biological activities including hemostatic, antiphlogistic, hypoglycemic as well as antioxidant effect. Though molecular pharmalogical mechanism of these effects have not been fully cleared, Corylus heterophylla Flowers are widely used in clinical medicine. Aim of this study is to identify and isolate anti-staphylococcus aureus (SA) natural compounds from Crylus heterophyll...