What plant, named Olea europaea, is an ancient widely used metaphor for peace?
Olives Olivey Green olives European Olive Olive trees Olive wood Olive groves Olive (fruit) Olive Tree Olivetrees Black olive Olea europea Olive-tree Olive tree Olive (tree) Olive grove Olive-wood Back olive Olivetree Olive Colossal olive Black olives Olive-trees Olive growing Olea europaea Green olive Kalamon (olive) The Olive Tree