Fraxinus is a genus of trees that belongs to the family of Oleaceae (like the olive tree). The common name is ash tree.
Recommended links: Baumkunde.de, British trees, USDA, Waldwissen.net, Wikipedia.de (Eschen), Wikipedia.de (Gemeine Esche), Wikipedia (European ash), Wikipedia (Fraxinus), Wikipedia (Oleaceae)
Blog posts: Tree silhouette 5