Alnus P. Miller. Subfamily: Betuloideae. Alder.

Key to Alnus

A genus of about 25-35 species, shrubs and trees, of subarctic to warm temperate regions of the Northern Hemisphere, and in montane situations south to n. South America.

Ref: Banaev & Adel’shin (2009); Chen & Li (2004); Chery (2015); Furlow (1990); Furlow (1997) In Flora of North America Editorial Committee (1997); Gray (1842); Hardin (1971a); Kubitzki, Rohwer, & Bittrich (1993); Navarro et al. (2003); Schrader & Graves (2002). Show full citations.

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