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-21371,A,Betulaceae,,Betula,,"humilis",,"","Marshall",Synonym,Invalid,H,WCSP,21371,107793-1,"Arbust. Amer.","19","","1785",kew-21446 kew-21372,A,Betulaceae,,Betula,×,"humilis",,"","Fr. ex Regel",Unresolved,Invalid,L,WCSP,21372,,"Prodr.","16(2): 172","","1868", kew-21373,A,Betulaceae,,Betula,,"humilis",,"","Schrank",Accepted,,H,WCSP,21373,295106-1,"Baier. Fl.","1: 420","","1789", kew-343061,A,Betulaceae,,Betula,,"humilis",f.,"calcarata","Perfil.",Synonym,,L,WCSP,343061,,"Bot. Zhurn. S.S.S.R.","20: 642","","1935",kew-21373 kew-21374,A,Betulaceae,,Betula,,"humilis",var.,"camtschatica","Regel",Synonym,,L,WCSP,21374,,"Nouv. Mém. Soc. Imp. Naturalistes Moscou","13: 107","","1861",kew-21373 kew-21375,A,Betulaceae,,Betula,,"humilis",var.,"commutata","Regel",Synonym,,L,WCSP,21375,,"Nouv. Mém. Soc. Imp. Naturalistes Moscou","13(2): 108","","1861",kew-21373 kew-343060,A,Betulaceae,,Betula,,"humilis",f.,"crispa","Perfil.",Synonym,,L,WCSP,343060,,"Bot. Zhurn. S.S.S.R.","20: 642","","1935",kew-21373 kew-343056,A,Betulaceae,,Betula,,"humilis",var.,"cuneata","Perfil.",Synonym,,L,WCSP,343056,,"Bot. Zhurn. S.S.S.R.","20: 640","","1935",kew-21373 kew-386866,A,Betulaceae,,Betula,,"humilis",var.,"kamtschatica","Regel",Synonym,,L,WCSP,386866,,"Nouv. Mém. Soc. Imp. Naturalistes Moscou","13(2): 107","","1861",kew-343069 kew-343062,A,Betulaceae,,Betula,,"humilis",f.,"obovata","Perfil.",Synonym,,L,WCSP,343062,,"Bot. Zhurn. S.S.S.R.","20: 643","","1935",kew-21373 kew-21377,A,Betulaceae,,Betula,,"humilis",var.,"ovalifolia","(Rupr.) Regel",Synonym,,L,WCSP,21377,,"Nouv. Mém. Soc. Imp. Naturalistes Moscou","13(2): 110","","1861",kew-21543 kew-340839,A,Betulaceae,,Betula,,"humilis",var.,"oycowiensis","Nyman",Synonym,,L,WCSP,340839,,"Consp. Fl. Eur.","673","","1881",kew-21373 kew-21378,A,Betulaceae,,Betula,,"humilis",var.,"palustris","J.F.Gmel.",Synonym,,L,WCSP,21378,,"Fl. Sibir.","1: 167","","1747",kew-21272 kew-21379,A,Betulaceae,,Betula,,"humilis",var.,"reticulata","(Rupr.) Regel",Synonym,,L,WCSP,21379,,"Nouv. Mém. Soc. Imp. Naturalistes Moscou","13(2): 109","","1861",kew-21543 kew-21381,A,Betulaceae,,Betula,,"humilis",var.,"socolowii","Regel",Synonym,,L,WCSP,21381,,"Nouv. Mém. Soc. Imp. Naturalistes Moscou","13(2): 108","","1861",kew-21373 kew-343057,A,Betulaceae,,Betula,,"humilis",var.,"subcordata","Perfil.",Synonym,,L,WCSP,343057,,"Bot. Zhurn. S.S.S.R.","20: 641","","1935",kew-21373 kew-21382,A,Betulaceae,,Betula,,"humilis",var.,"tatewakiana","(M.Ohki & S.Watan.) Murata",Synonym,,L,WCSP,21382,874736-1,"Acta Phytotax. Geobot.","29: 105","","1978",kew-21543