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![(Betula nana tundrarum - TROM_V_94022_sg) @11 [ ] CreativeCommons - Attribution Non-Commercial Share-Alike (2017) Unspecified Tromsø University Museum](http://v3.boldsystems.org/pics/_w300/PNOR/TROM_V_94022%2B1485981680.JPG "(Betula nana tundrarum - TROM_V_94022_sg) {} [ ] CreativeCommons - Attribution Non-Commercial Share-Alike (2017)")
![(Betula nana exilis - TROM_V_201835_sg) @11 [ ] CreativeCommons - Attribution Non-Commercial Share-Alike (2017) Unspecified Tromsø University Museum](http://v3.boldsystems.org/pics/_w300/PNOR/TROM_V_201835%2B1485986218.JPG "(Betula nana exilis - TROM_V_201835_sg) {} [ ] CreativeCommons - Attribution Non-Commercial Share-Alike (2017)")
![(Betula nana nana - TROM_V_96939_sg) @11 [ ] CreativeCommons - Attribution Non-Commercial Share-Alike (2014) Unspecified Tromso University Museum](http://v3.boldsystems.org/pics/_w300/NNOR/BetNanNan_TROM_V_96939_blo%2B1413210566.JPG "(Betula nana nana - TROM_V_96939_sg) {} [ ] CreativeCommons - Attribution Non-Commercial Share-Alike (2014)")
![(Betula nana ssp exilis - Dabbs_146_CAN) @11 [ ] Copyright (2011) Canadian Museum of Nature Canadian Museum of Nature](http://v3.boldsystems.org/pics/_w300/FCA/CAN572422%2B1305048206.jpg "(Betula nana ssp exilis - Dabbs_146_CAN) {} [ ] Copyright (2011)")
