This mountain range is covered with Maquis shrubland, including Juniperus oxycedrus, Calicotome spinosa, Pistacia lentiscus and Anthyllis cytisoides shrubs. Some of the lower slopes facing inland are planted with olive, almond and carob trees. In spite of the mountain area having been officially declared a Natural Park, there has been heavy urbanization on the slopes of the mountain having a sea view towards the northern end of the range next to Peníscola. There are castles and watchtowers of Moorish times on peaks of the Serra d'Irta both east of Santa Magdalena de Polpís and of Alcalà de Xivert.