Alder tree_（model:3137838）alder,alder tree,nature,leaf,leaves,bark,trunk

Polys 963081 Verts 1588976 Alder is the common name of a genus of flowering plants, Alnus, belonging to the birch family Betulaceae. The genus comprises about 35[2] species of monoecious trees and shrubs, a few reaching a large size, distributed throughout the north temperate zone with a few species extending into Central America, as well as the northern and southern Andes.