Photo: Betula nana 2.

Leaf comparison, Betula nana and Betula pubescens. Imatra, Finland. Wild. 1997-08-01.
Betula nana L. Engl.: dwarf birch, smooth dwarf birch, alpine birch, Arctic dwarf birch, bog birch, scrub birch. Deu.: Zwerg-Birke. Suom.: vaivaiskoivu. Sven.: dvärgbjörk, fredagsbjörk. Fran.: bouleau nain. Bot. syn.: Betula exilis Sukatschev, Betula glandulosa Michx., Betula michauxii Sarg., Betula terrae-novae Fern.
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Photo: Betula nana 2.