Family

Betulaceae (Birch family)

Corylus cornuta californica. Photo: (c) Harsi Parker, some rights reserved (CC BY-NC)

Betulaceae, the birch family, includes six genera of deciduous nut-bearing trees and shrubs, including the birches, alders, hazels, hornbeams, hazel-hornbeam, and hop-hornbeams numbering a total of 167 species. They are mostly natives of the temperate Northern Hemisphere, with a few species reaching the Southern Hemisphere in the Andes in South America. Their typical flowers are catkins and often appear before leaves.

— Wikipedia

Subtaxa

Where in Humboldt



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