genus of mostly woody relatively primitive dicotyledonous flowering plants with flowers often unisexual and often borne in catkins

chiefly monoecious trees and shrubs: beeches; chestnuts; oaks; genera Castanea, Castanopsis, Chrysolepis, Fagus, Lithocarpus, Nothofagus, Quercus

evergreen tree of the Pacific coast area having large leathery leaves; yields tanbark

chiefly monoecious trees and shrubs: beeches; chestnuts; oaks; genera Castanea, Castanopsis, Chrysolepis, Fagus, Lithocarpus, Nothofagus, Quercus

evergreen tree of the Pacific coast area having large leathery leaves; yields tanbark