name botanical:Alnus firma
family:Birch familiy (Betulaceae)
height:up to 30 m (99 ft)
The leaves are ovate, green, solid and serrated. Note the high-spines along leaf edge.
The blossoms appears before sprouting of leaves. The male yellowish flowers (catkins) are conspicuous, the female flowers are inconspicuous.
gender distribution:monoecious dioecious
The cones are green and only become woody later, then the color is brown / black. The cones remain through the winter hanging on the tree.
bark:The bark is smooth and brown with lighter grain.
Alders additional information
overview leaves | overview blossoms
overview fruit | overview trunk
overview winter | overview trees