ID,Major group,Family,Genus hybrid marker,Genus,Species hybrid marker,Species,Infraspecific rank,Infraspecific epithet,Authorship,Taxonomic status in TPL,Nomenclatural status from original data source,Confidence level,Source,Source id,IPNI id,Publication,Collation,Page,Date,Accepted ID kew-21492,A,Betulaceae,,Betula,,"microphylla",,"","Bunge",Accepted,,H,WCSP,21492,295145-1,"Verz. Altai Pfl.","112","","1835", kew-330300,A,Betulaceae,,Betula,,"microphylla",var.,"fontinalis","(Sarg.) M.E.Jones",Synonym,,L,WCSP,330300,32168-2,"Contr. W. Bot.","12: 77","","1908",kew-21535 kew-330301,A,Betulaceae,,Betula,,"microphylla",var.,"occidentalis","(Hook.) M.E.Jones",Synonym,,L,WCSP,330301,32169-2,"Contr. W. Bot.","12: 77","","1908",kew-21535 kew-21493,A,Betulaceae,,Betula,,"microphylla",var.,"rezniczenkoana","Litv.",Synonym,,L,WCSP,21493,,"Trudy Bot. Muz. Imp. Akad. Nauk","12: 97","","1914",kew-21492 kew-330302,A,Betulaceae,,Betula,,"microphylla",var.,"utahensis","(Britton) M.E.Jones",Synonym,,L,WCSP,330302,32170-2,"Contr. W. Bot.","13: 22","","1910",kew-21790