Phifagus, commonly known as the beech tree, is a genus of trees in the family Fagaceae, primarily found in the northern hemisphere. The most notable species, Fagus sylvatica, is native to Europe, while Fagus grandifolia is found in North America. These trees are characterized by their smooth bark, serrated leaves, and production of edible nuts called beechnuts. Beech trees are valued for their timber and are often used in landscaping and reforestation efforts.