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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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Hover over a shape, letter, icon, or arrow on the map for definition or see the legend. Data for arrows not developed for genera and families which may have species only occurring outside the flora area.

image of plant© Gary P. Fleming | Betula papyrifera | Original Image ⭷
image of plant© Bruce A. Sorrie | Betula populifolia | Original Image ⭷
image of plant© Gary P. Fleming | Betula populifolia | Original Image ⭷
image of plant© Gary P. Fleming | Betula nigra | Original Image ⭷
image of plant© Gary P. Fleming | Betula nigra | Original Image ⭷
image of plant© Gary P. Fleming | Betula populifolia | Original Image ⭷
image of plant© Gary P. Fleming | Betula papyrifera | Original Image ⭷
image of plant© Gary P. Fleming | Betula papyrifera | Original Image ⭷

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