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-21153,A,Betulaceae,,Betula,×,"alpina",,"","Kindb.",Unresolved,Illegitimate,L,WCSP,21153,107711-1,"Bot. Not.","1909: 121","","1909", kew-21154,A,Betulaceae,,Betula,,"alpina",,"","Borkh. ex Theorin",Synonym,,H,WCSP,21154,,"Prakt. Handb. Forstbot.","1: 477","","1800",kew-6257