Betula Linnaeus. Subfamily: Betuloideae. Birch.

Key to Betula

A genus of 35-100 species, trees, shrubs, and subshrubs, of subarctic and temperate regions of the Northern Hemisphere. The subgeneric classification shown follows Schenk et al. (2008).

Ref: Ashburner & McAllister (2016); Furlow (1990); Furlow (1997) In Flora of North America Editorial Committee (1997); Govaerts & Frodin (1998); Grant & Thompson (1975); Hardin (1971a); Järvinen et al. (2004); Kubitzki, Rohwer, & Bittrich (1993); Schenk et al. (2008). Show full citations.

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