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Betulaceae Trees & shrubs Flowers in catkins (male & female) Leaves with doubly serrate margins
Alnus rubra
Betulaceae
Paper birch Alder root nodules
Betulaceae Flowers in catkins (male & female)
Alnus rubra
Betulaceae Flowers in catkins (male & female)
Betula
Betulaceae Corylus (hazel nut): male flowers in catkins Female flowers solitary
Fagaceae trees – small to large
Quercus chrysolepis Q. Chrysolepis var nana
Fagaceae Male flowers in catkins Female flowers in leaf axils or at base of catkin; subtended by involucral bracts
Castanea
Fagus Quercus
Fagaceae Quercus – oaks, largest genus