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Which Fagales trees remain evergreen?

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Fagales European beech (*Fagus sylvatica*).

Within the Fagales order, several trees exhibit evergreen characteristics, primarily within the family Fagaceae and the genus Nothofagus.123

In the family Fagaceae, the following genera include evergreen species:
* Lithocarpus2
* Castanopsis2
* Certain species of Quercus (oaks)2

These evergreen members of the Fagaceae are typically characterized by thick, leathery-textured, and usually smooth-margined leaves.2

Additionally, while some species of the southern beech genus Nothofagus are deciduous, the majority of the species in this genus are evergreen timber trees found throughout the Australasian region. Notable evergreen examples include:3
* Australian beech (N. moorei)3
* Myrtle beech (N. cunninghamii)3
* Red beech (N. fusca)3
* Silver beech (N. menziesii)3

Outside of these specific groups, most members of the Fagales order in temperate regions are deciduous.2