Avala is known for its diverse plant life, despite not being a tall mountain. There are over 600 plant species living on the mountain. Some of them are protected by the law as natural rarities, like certain types of laburnum, box tree, black broom, common holly and martagon lily. The area is also abundant in medical herbs, like the early-purple orchid and belladonna. Almost 70% of Avala is forested. High woods mostly consist of durmast oak, Turkey oak, hornbeam, beech, linden, black pine, black locust and other trees.