Ilex aquifolium
Forests and smaller wooded areas within the park are comprised mainly by cork oaks ("Quercus suber"), Portuguese oaks ("Quercus faginea"), Pyrenean oaks ("Quercus pyrenaica"), olive trees ("Olea europaea"), alders ("Alnus glutinosa"), holly trees ("Ilex aquifolium"), bay laurels ("Laurus nobilis"), rhododendrons ("Rhododendron ponticum"), ferns, mosses, and lichens.