Yield and level of phenolic compounds in the inflorescence of yellow everlasting Helichrysum arenarium (L.) Moench collected from natural sites

Introduction: The inflorescence of Helichrysum arenarium (L.) Moench shows anti-inflammatory, antioxidant, detoxifying properties and is traditionally used in liver and biliary tract diseases. Because of its difficult and expensive cultivation, the plant raw material is mainly harvested from natural sites