Usually pluri-specific scrub in which Olea europaea var. sylvestris accompanied by Pistacia lentiscus plays a determinant physiognomic role. Almost entirely restricted to the thermo-Mediterranean zone, they are represented by particularly well-developed, extensive stands in southern Iberia, the Balearics, Sardinia, Sicily, southern Greece and the Aegean, Mediterranean Anatolia, Cyprus and the Levant, North Africa. When the characteristic species increase in height they grade into arborescent matorral (unit F5.12).