Rhamnus lycioides ssp. oleoides Mediterranean buckthorn
This buckthorn is native to the Mediterranean, North Africa and Turkey. It can reach an height of 3 metres, as this plant was. It flowers March to May and produces the fruit from July to September. It is very resistant to drought and thrives in dry forests though this plant was growing out of a limestone cliff. The fruit is eaten by birds and ants, but can cause death in some mammals.