Composition of the essential oil of Teucrium fruticans L. from the Maremma Regional Park (Tuscany, Italy)

The composition of the essential oil of a population of Teucrium fruticans L. from the Maremma Regional Park, Italy, has been studied for the first time. The oil was obtained from both flowering and fruiting tops. The former contained almost equal amounts of mono‐ and sesquiterpenes (53% and 45%, respectively), while the latter was constituted mainly by sesquiterpenes (70%). The main components during the flowering phase were β‐pinene (21%), germacrene D (18%), β‐myrcene (13%), and β‐caryophyllene (12%), and during the fruiting phase germacrene D (24%), β‐caryophyllene (22%), β‐pinene (7%) and β‐selinene (7%).