The Moroccan <i>Hypericum pubescens</i> Boiss. accession: the essential oil chemical composition of its aerial parts

<i>Hypericum</i> Tourn. ex L., is a very large genus of the Hypericaceae family that includes more than 500 taxa, distributed all over the world. <i>Hypericum pubescens</i> Boiss. is a perennial plant presents in Spain and Malta, North Africa and Sicily, belonging to Section <i>Adenosepalum</i> Spach (subsection <i>Pubescentes</i> N. Robson). The essential oil (EO) of <i>H. pubescens</i> has never been previously investigated, and in this study, the chemical composition of the EO of plants collected in Morocco (Hpm) was evaluated by GC-MS. The EO was characterised by a remarkable amount of monoterpenoid hydrocarbons (24.67%), with <i>α</i>-pinene as main constituent (21.55%), and by a notably large amount furfuryl heptanoate (17.61%). An update of the composition of all the EOs of <i>Hypericum</i> species belonging to Section <i>Adenosepalum</i> was carried out and their composition have been compared with the results obtained from the Moroccan accession of <i>Hypericum pubescens</i>.