Author:
Jan Scholten
Book:
Type:
Chapter:
3-644.41.00

English: Birch family
Botany: 6 genera, Betula, Alnus, Carpinus, Corylus, Ostrya, Ostryopsis; nut-bearing trees and shrubs; 130 species; temperate Northern Hemisphere.

Taxonomy
In the past, Betulaceae was often divided into two families, Betulaceae with Alnus, Betula and Corylaceae with the rest. The Apg3 classification has described these two groups as subfamilies Betuloideae and Coryloideae within Betulaceae.