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-21066,A,Betulaceae,,Betula,,"abolinii",,"","Sukaczev",Synonym,Invalid,H,WCSP,21066,107704-1,"Trudy Komiss. Izuch. Yakutsk. Avton. S.S.R.","10: 367","","1929",kew-21508
kew-21067,A,Betulaceae,,Betula,,"acuminata",,"","Kindb.",Synonym,Illegitimate,H,WCSP,21067,107705-1,"Bot. Not.","1909: 119","","1909",kew-21649
kew-21068,A,Betulaceae,,Betula,,"acuminata",,"","Wall.",Synonym,Illegitimate,H,WCSP,21068,295023-1,"Pl. Asiat. Rar.","2: 7","","1830",kew-21139
kew-21069,A,Betulaceae,,Betula,,"acuminata",,"","Ehrh.",Synonym,,H,WCSP,21069,295022-1,"Beitr. Naturk.","6: 98","","1791",kew-21620
tro-50007079,A,Betulaceae,,Betula,,"acuminata",var.,"argula","Regel",Synonym,,L,TRO,50007079,,"Nouv. Mém. Soc. Imp. Naturalistes Moscou","13(2): 130","130","1861",kew-21139
kew-21070,A,Betulaceae,,Betula,,"acuminata",var.,"arguta","Regel",Synonym,,L,WCSP,21070,,"Nouv. Mém. Soc. Imp. Naturalistes Moscou","13(2): 129","","1861",kew-21139
kew-21071,A,Betulaceae,,Betula,,"acuminata",var.,"cylindrostachya","(Lindl. ex Wall.) Regel",Synonym,,L,WCSP,21071,,"Nouv. Mém. Soc. Imp. Naturalistes Moscou","13(2): 129","","1861",kew-21245
kew-21072,A,Betulaceae,,Betula,,"acuminata",var.,"glabra","Regel",Synonym,,L,WCSP,21072,,"Nouv. Mém. Soc. Imp. Naturalistes Moscou","13(2): 129","","1861",kew-21139
kew-21073,A,Betulaceae,,Betula,,"acuminata",var.,"lancifolia","Regel",Synonym,,L,WCSP,21073,,"Nouv. Mém. Soc. Imp. Naturalistes Moscou","13(2): 130","","1861",kew-21139
kew-21074,A,Betulaceae,,Betula,,"acuminata",var.,"pilosa","Regel",Synonym,,L,WCSP,21074,,"Nouv. Mém. Soc. Imp. Naturalistes Moscou","13(2): 129","","1861",kew-21139
kew-21075,A,Betulaceae,,Betula,,"acuminata",var.,"pyrifolia","Franch.",Synonym,,L,WCSP,21075,,"J. Bot. (Morot)","13: 207","","1899",kew-21462
kew-21076,A,Betulaceae,,Betula,,"acuminatifolia",,"","V.N.Vassil.",Synonym,,H,WCSP,21076,107706-1,"Bot. Zhurn. S.S.S.R.","27: 77","","1942",kew-21355
kew-21077,A,Betulaceae,,Betula,,"adasii",,"","T.V.Egorova & Sipliv.",Synonym,,H,WCSP,21077,107707-1,"Novosti Sist. Vyssh. Rast.","6: 235","","1970",kew-21272
kew-21078,A,Betulaceae,,Betula,,"aetnensis",,"","Raf. ex J.Presl & C.Presl",Synonym,Spelling variant,H,WCSP,21078,,"Delic. Prag.","144","","1822",kew-21582
kew-21079,A,Betulaceae,,Betula,,"affinis",,"","(Spach) Endl.",Synonym,,H,WCSP,21079,295025-1,"Gen. Pl.","Suppl. 4(2): 20","","1848",kew-21139
kew-21080,A,Betulaceae,,Betula,,"aischatiae",,"","E.S.Husseinov",Synonym,,H,WCSP,21080,,"Novosti Sist. Vyssh. Rast.","8: 126","","1971",kew-21688
kew-21081,A,Betulaceae,,Betula,,"ajanensis",,"","Kom.",Synonym,,H,WCSP,21081,,"Bot. Mater. Gerb. Glavn. Bot. Sada RSFSR","2: 130","","1921",kew-21604
kew-21082,A,Betulaceae,,Betula,,"alajica",,"","Litv.",Accepted,,H,WCSP,21082,107710-1,"Trudy Bot. Muz. Imp. Akad. Nauk","12: 92","","1914",
kew-21083,A,Betulaceae,,Betula,,"alaskana",,"","Sarg.",Synonym,Illegitimate,H,WCSP,21083,295026-1,"Bot. Gaz.","31: 236","","1901",kew-21524
kew-21084,A,Betulaceae,,Betula,,"alatavica",,"","Musch.",Synonym,,H,WCSP,21084,,"Trudy Kazakhsk. Sel'skhoz. Inst.","4: 198","","1953",kew-21758
tro-3600219,A,Betulaceae,,Betula,,"alatavica",,"","Muscheg.",Synonym,,M,TRO,3600219,,"","","","",kew-21758
kew-21085,A,Betulaceae,,Betula,,"alba",,"","L.",Synonym,,H,WCSP,21085,30003805-2,"Sp. Pl.","982","","1753",kew-21636
kew-21086,A,Betulaceae,,Betula,,"alba",var.,"aetherea","Wallr.",Synonym,,L,WCSP,21086,,"Sched. Crit.","494","","1822",kew-21582
kew-345620,A,Betulaceae,,Betula,,"alba",subsp.,"arborescens","Wallr.",Synonym,,L,WCSP,345620,,"Sched. Crit.","494","","1822",kew-21582
kew-21087,A,Betulaceae,,Betula,,"alba",var.,"arbuscula","Fr.",Synonym,,L,WCSP,21087,,"Summa Veg. Scand.","1: 212","","1845",kew-21582
kew-386843,A,Betulaceae,,Betula,,"alba",var.,"atropurpurea","Dippel",Synonym,,L,WCSP,386843,,"Handb. Laubholzk.","2: 174","","1892",kew-21582
kew-273782,A,Betulaceae,,Betula,,"alba",var.,"bircalensis","(Mela) Mela",Synonym,,L,WCSP,273782,,"Lyhk. Kasv.","ed. 3: 315","","1895",kew-21582
kew-21088,A,Betulaceae,,Betula,,"alba",var.,"camtschatica","Regel",Synonym,,L,WCSP,21088,,"Bull. Soc. Imp. Naturalistes Moscou","38(2): 400","","1865",kew-21604
kew-21089,A,Betulaceae,,Betula,,"alba",var.,"carelica","Merckl.",Synonym,,L,WCSP,21089,,"Anat. Drevesiny Steblya Ross.","82","","1857",kew-21582
tro-50271194,A,Betulaceae,,Betula,,"alba",var.,"carelica","Merklein",Synonym,,L,TRO,50271194,,"?","","","",kew-21582
kew-330274,A,Betulaceae,,Betula,,"alba",var.,"carpatica","(Waldst. & Kit. ex Willd.) Regel",Synonym,,L,WCSP,330274,,"Bull. Soc. Imp. Naturalistes Moscou","38(2): 404","","1865",kew-21649
kew-21091,A,Betulaceae,,Betula,,"alba",var.,"communis","Shirai",Synonym,,L,WCSP,21091,,"Bot. Mag. (Tokyo)","8: 319","","1894",kew-21355
kew-21092,A,Betulaceae,,Betula,,"alba",var.,"commutata","Regel",Synonym,,L,WCSP,21092,32093-2,"Bull. Soc. Imp. Naturalistes Moscou","38(2): 401","","1865",kew-21557
kew-21093,A,Betulaceae,,Betula,,"alba",var.,"cordifolia","(Regel) Regel",Synonym,,L,WCSP,21093,,"Bull. Soc. Imp. Naturalistes Moscou","38(2): 401","","1865",kew-21560
tro-3600439,A,Betulaceae,,Betula,,"alba",var.,"cordifolia","(Regel) Fernald",Synonym,,L,TRO,3600439,32094-2,"Amer. J. Sci., ser. 4","14: 177","177","1902",kew-21560
kew-21094,A,Betulaceae,,Betula,,"alba",f.,"dalecarlica","(L.f.) Regel",Synonym,,L,WCSP,21094,,"Prodr.","16(2): 164","","1868",kew-21582
kew-21807,A,Betulaceae,,Betula,,"alba",var.,"dalecarlica","L.f.",Synonym,,L,WCSP,21807,,"Suppl. Pl.","416","","1782",kew-21582
kew-330275,A,Betulaceae,,Betula,,"alba",var.,"elobata","Fernald",Synonym,,L,WCSP,330275,32095-2,"Rhodora","15: 169","","1913",kew-21557
kew-21095,A,Betulaceae,,Betula,,"alba",subsp.,"excelsa","(Aiton) Regel",Synonym,,L,WCSP,21095,,"Bull. Soc. Imp. Naturalistes Moscou","38(2): 405","","1865",kew-21557
kew-221331,A,Betulaceae,,Betula,,"alba",var.,"fastigiata","Clemenc.",Synonym,,L,WCSP,221331,,"Rev. Hort.","1870: 580","","1871",kew-21582
kew-21096,A,Betulaceae,,Betula,,"alba",var.,"friesii","Regel",Synonym,,L,WCSP,21096,,"Bull. Soc. Imp. Naturalistes Moscou","38(2): 404","","1865",kew-21636
kew-21097,A,Betulaceae,,Betula,,"alba",var.,"glabrata","(Wahlenb.) Muñoz Garm. & Pedrol",Synonym,,L,WCSP,21097,953890-1,"Anales Jard. Bot. Madrid","44: 599","","1987",kew-21649
kew-21098,A,Betulaceae,,Betula,,"alba",subsp.,"glutinosa","(Trautv. ex Regel) Holub",Synonym,,L,WCSP,21098,955789-1,"Folia Geobot. Phytotax.","24: 426","","1989",kew-21649
kew-386850,A,Betulaceae,,Betula,,"alba",var.,"glutinosa","Trautv. ex Regel",Synonym,,L,WCSP,386850,,"Nouv. Mém. Soc. Imp. Naturalistes Moscou","13(2): 78","","1861",kew-21649
kew-21099,A,Betulaceae,,Betula,,"alba",var.,"hornemannii","Regel",Synonym,,L,WCSP,21099,,"Bull. Soc. Imp. Naturalistes Moscou","38(2): 403","","1865",kew-21636
kew-452475,A,Betulaceae,,Betula,,"alba",f.,"hornemannii","(Regel) Regel",Synonym,,L,WCSP,452475,,"Prodr.","16(2): 167","","1868",kew-21636
kew-21100,A,Betulaceae,,Betula,,"alba",var.,"humilis","Regel",Synonym,,L,WCSP,21100,32100-2,"Prodr.","16(2): 166","","1868",kew-21524
kew-21101,A,Betulaceae,,Betula,,"alba",var.,"intermedia","(Hartm.) Wahlenb.",Unresolved,,L,WCSP,21101,,"Fl. Suec.","624","","1824",
kew-21102,A,Betulaceae,,Betula,,"alba",var.,"japonica","Miq.",Synonym,,L,WCSP,21102,,"Prolus. Fl. Jap.","68","","1866",kew-342865
kew-21103,A,Betulaceae,,Betula,,"alba",var.,"kamtschatica","Regel",Synonym,,L,WCSP,21103,,"Bull. Soc. Imp. Naturalistes Moscou","38(2): 400","","1865",kew-21607
kew-386842,A,Betulaceae,,Betula,,"alba",f.,"laciniata","(de Vos) Dippel",Synonym,,L,WCSP,386842,,"Handb. Laubholzk.","2: 174","","1892",kew-21582
kew-342772,A,Betulaceae,,Betula,,"alba",subsp.,"latifolia","(Tausch) Regel",Synonym,,L,WCSP,342772,,"Bull. Soc. Imp. Naturalistes Moscou","38(2): 399","","1865",kew-21557
kew-21105,A,Betulaceae,,Betula,,"alba",f.,"lobata","Regel",Synonym,,L,WCSP,21105,,"Prodr.","16(2): 164","","1868",kew-21582
kew-221332,A,Betulaceae,,Betula,,"alba",var.,"lobulata","C.Andersson",Synonym,,L,WCSP,221332,50426217-2,"Obs. Stirp. Christinehamn","7","","1842",kew-21582
kew-345621,A,Betulaceae,,Betula,,"alba",var.,"lupulina","Wallr.",Synonym,,L,WCSP,345621,,"Sched. Crit.","495","","1822",kew-21636
kew-21106,A,Betulaceae,,Betula,,"alba",var.,"macrocarpa","Willd.",Synonym,,L,WCSP,21106,60446898-2,"Berlin. Baumz.","37","","1796",kew-21582
kew-21107,A,Betulaceae,,Betula,,"alba",subsp.,"mandshurica","Regel",Synonym,,L,WCSP,21107,,"Bull. Soc. Imp. Naturalistes Moscou","38(2): 399","","1865",kew-342865
kew-342850,A,Betulaceae,,Betula,,"alba",var.,"mandshurica","(Regel) Franch.",Synonym,,L,WCSP,342850,,"Nouv. Arch. Mus. Hist. Nat.","II, 7: 91","","1884",kew-342865
kew-21108,A,Betulaceae,,Betula,,"alba",var.,"microphylla","Wallr.",Synonym,,L,WCSP,21108,,"Sched. Crit.","495","","1822",kew-21582
tro-3600672,A,Betulaceae,,Betula,,"alba",var.,"microphylla","Regel",Synonym,,L,TRO,3600672,,"Bull. Soc. Imp. Naturalistes Moscou","51: 223","223","1868",kew-21758
tro-50271216,A,Betulaceae,,Betula,,"alba",var.,"microphylla","Wimm.",Synonym,,L,TRO,50271216,,"Fl. Schles.","317","317","1840",kew-21582
kew-21109,A,Betulaceae,,Betula,,"alba",var.,"minor","(Tuck.) Fernald",Synonym,,L,WCSP,21109,,"Amer. J. Sci.","IV, 14: 178","","1902",kew-21495
kew-21110,A,Betulaceae,,Betula,,"alba",f.,"occidentalis","(Hook.) Fernald",Synonym,,L,WCSP,21110,1128072-2,"Amer. J. Sci.","IV, 14: 173","","1902",kew-21535
kew-330277,A,Betulaceae,,Betula,,"alba",subsp.,"occidentalis","(Hook.) Regel",Synonym,,L,WCSP,330277,,"Bull. Soc. Imp. Naturalistes Moscou","38(2): 400","","1865",kew-21535
kew-376522,A,Betulaceae,,Betula,,"alba",subsp.,"odorata","(Bechst.) Dippel",Synonym,,L,WCSP,376522,,"Handb. Laubholzk.","2: 172","","1892",kew-21649
kew-21111,A,Betulaceae,,Betula,,"alba",var.,"ovata","Neilr.",Synonym,,L,WCSP,21111,,"Fl. Nied.-Oesterr.","235","","1859",kew-21636
kew-21112,A,Betulaceae,,Betula,,"alba",var.,"oycowiensis","(Besser) Regel",Synonym,,L,WCSP,21112,,"Bull. Soc. Imp. Naturalistes Moscou","38(2): 398","","1865",kew-21593
kew-21113,A,Betulaceae,,Betula,,"alba",var.,"papyrifera","(Marshall) Spach",Synonym,,L,WCSP,21113,32101-2,"Ann. Sci. Nat., Bot.","II, 15: 188","","1841",kew-21557
kew-330278,A,Betulaceae,,Betula,,"alba",subsp.,"papyrifera","(Marshall) Regel",Synonym,,L,WCSP,330278,,"Bull. Soc. Imp. Naturalistes Moscou","38(2): 401","","1865",kew-21557
kew-21114,A,Betulaceae,,Betula,,"alba",var.,"parvifolia","(Regel) Regel",Synonym,,L,WCSP,21114,,"Bull. Soc. Imp. Naturalistes Moscou","38(2): 403","","1865",kew-21649
kew-21115,A,Betulaceae,,Betula,,"alba",var.,"pendula","(Roth) W.T.Aiton",Synonym,,L,WCSP,21115,,"Hortus Kew.","3: 336","","1789",kew-21582
kew-21116,A,Betulaceae,,Betula,,"alba",var.,"pontica","P.Watson",Synonym,,L,WCSP,21116,,"Dendrol. Brit.","2: t. 94","","1825",kew-21649
kew-21117,A,Betulaceae,,Betula,,"alba",var.,"populifolia","(Marshall) Spach",Synonym,,L,WCSP,21117,32103-2,"Ann. Sci. Nat., Bot.","II, 15: 187","","1841",kew-21620
kew-21118,A,Betulaceae,,Betula,,"alba",subsp.,"populifolia","(Marshall) Regel",Synonym,,L,WCSP,21118,,"Bull. Soc. Imp. Naturalistes Moscou","38(2): 399","","1865",kew-21620
kew-21119,A,Betulaceae,,Betula,,"alba",var.,"pubescens","(Ehrh.) Spach",Synonym,,L,WCSP,21119,,"Ann. Sci. Nat., Bot.","II, 15: 187","","1841",kew-21636
kew-21120,A,Betulaceae,,Betula,,"alba",subsp.,"pubescens","(Ehrh.) Regel",Synonym,,L,WCSP,21120,,"Bull. Soc. Imp. Naturalistes Moscou","38(2): 402","","1865",kew-21636
kew-21121,A,Betulaceae,,Betula,,"alba",var.,"pumila","L.",Synonym,,L,WCSP,21121,,"Fl. Suec.","ed. 2: 295","","1755",kew-21659
kew-21122,A,Betulaceae,,Betula,,"alba",var.,"resinifera","Regel",Synonym,,L,WCSP,21122,,"Bull. Soc. Imp. Naturalistes Moscou","38(2): 398","","1865",kew-21604
kew-21123,A,Betulaceae,,Betula,,"alba",var.,"rhombifolia","(Tausch) Regel",Synonym,,L,WCSP,21123,,"Bull. Soc. Imp. Naturalistes Moscou","38(2): 404","","1865",kew-21167
kew-452476,A,Betulaceae,,Betula,,"alba",f.,"rhombifolia","(Tausch) Regel",Synonym,,L,WCSP,452476,,"Prodr.","16(2): 167","","1868",kew-21167
kew-21125,A,Betulaceae,,Betula,,"alba",var.,"schugnanica","B.Fedtsch.",Synonym,,L,WCSP,21125,,"Trudy Bot. Muz. Imp. Akad. Nauk","1: 163","","1902",kew-21627
kew-386841,A,Betulaceae,,Betula,,"alba",var.,"songarica","Dippel",Synonym,,L,WCSP,386841,,"Handb. Laubholzk.","2: 174","","1892",kew-21582
kew-21126,A,Betulaceae,,Betula,,"alba",var.,"tauschii","Regel",Synonym,,L,WCSP,21126,,"Bull. Soc. Imp. Naturalistes Moscou","38(2): 399","","1865",kew-21604
tro-3600401,A,Betulaceae,,Betula,,"alba",subsp.,"tauschii","Regel",Synonym,,L,TRO,3600401,,"","","","",kew-21604
kew-342773,A,Betulaceae,,Betula,,"alba",subsp.,"tortuosa","(Ledeb.) Regel",Synonym,,L,WCSP,342773,,"Bull. Soc. Imp. Naturalistes Moscou","38(2): 404","","1865",kew-21659
kew-21128,A,Betulaceae,,Betula,,"alba",var.,"urticifolia","Spach",Synonym,,L,WCSP,21128,,"Ann. Sci. Nat., Bot.","II, 15: 187","","1841",kew-21582
kew-21129,A,Betulaceae,,Betula,,"alba",var.,"verrucosa","(Ehrh.) Wallr.",Synonym,,L,WCSP,21129,,"Sched. Crit.","495","","1822",kew-21582
kew-342771,A,Betulaceae,,Betula,,"alba",subsp.,"verrucosa","(Ehrh.) Regel",Synonym,,L,WCSP,342771,,"Bull. Soc. Imp. Naturalistes Moscou","38(2): 397","","1865",kew-21582
kew-21131,A,Betulaceae,,Betula,,"alba",var.,"vulgaris","Aiton",Synonym,,L,WCSP,21131,,"Hort. Kew.","3: 336","","1789",kew-21636
kew-21133,A,Betulaceae,,Betula,,"albosinensis",,"","Burkill",Accepted,,H,WCSP,21133,295028-1,"J. Linn. Soc., Bot.","26: 497","","1899",
kew-21134,A,Betulaceae,,Betula,,"albosinensis",var.,"septentrionalis","C.K.Schneid.",Synonym,,L,WCSP,21134,,"Ill. Handb. Laubholzk.","2: 458","","1916",kew-21791
kew-21135,A,Betulaceae,,Betula,,"alleghaniensis",,"","Britton",Accepted,,H,WCSP,21135,32106-2,"Bull. Torrey Bot. Club","31: 166","","1904",
kew-21136,A,Betulaceae,,Betula,,"alleghaniensis",var.,"fallax","(Fassett) Brayshaw",Synonym,,L,WCSP,21136,32107-2,"Canad. Field Natural.","80: 161","","1966",kew-21135
kew-21137,A,Betulaceae,,Betula,,"alleghaniensis",f.,"macrolepis","(Fernald) Brayshaw",Synonym,,L,WCSP,21137,32108-2,"Canad. Field-Naturalist","80: 161","","1966",kew-21135
kew-330279,A,Betulaceae,,Betula,,"alleghaniensis",var.,"macrolepis","(Fernald) Brayshaw",Synonym,,L,WCSP,330279,32109-2,"Canad. Field-Naturalist","80: 161","","1966",kew-21135
kew-21138,A,Betulaceae,,Betula,,"alnobetula",,"","Ehrh.",Synonym,,H,WCSP,21138,60446836-2,"Gartenkalender","2: 193","","1783",kew-6257
kew-21139,A,Betulaceae,,Betula,,"alnoides",,"","Buch.-Ham. ex D.Don",Accepted,,H,WCSP,21139,,"Prodr. Fl. Nepal.","58","","1825",
kew-21140,A,Betulaceae,,Betula,,"alnoides",var.,"acuminata","(Spach) H.J.P.Winkl.",Synonym,,L,WCSP,21140,,"Pflanzenr.","IV, 61: 89","","1904",kew-21139
kew-21141,A,Betulaceae,,Betula,,"alnoides",var.,"cylindrostachya","(Lindl. ex Wall.) H.J.P.Winkl.",Synonym,,L,WCSP,21141,,"Pflanzenr.","IV, 61: 91","","1904",kew-21245
kew-21142,A,Betulaceae,,Betula,,"alnoides",var.,"pyrifolia","(Franch.) Burkill",Synonym,,L,WCSP,21142,,"J. Linn. Soc., Bot.","26: 497","","1899",kew-21462
kew-21143,A,Betulaceae,,Betula,,"alnus",,"","L.",Synonym,,H,WCSP,21143,32112-2,"Sp. Pl.","983","","1753",kew-6417
kew-21144,A,Betulaceae,,Betula,,"alnus",var.,"crispa","(Aiton) Michx.",Synonym,,L,WCSP,21144,,"Fl. Bor.-Amer.","2: 181","","1803",kew-466798
kew-21145,A,Betulaceae,,Betula,,"alnus",var.,"glutinosa","L.",Synonym,,L,WCSP,21145,305022-2,"Sp. Pl.","983","","1753",kew-6364
kew-21146,A,Betulaceae,,Betula,,"alnus",var.,"incana","L.",Synonym,,L,WCSP,21146,306371-2,"Sp. Pl.","983","","1753",kew-6417
kew-386896,A,Betulaceae,,Betula,,"alnus",var.,"laciniata","Aiton",Synonym,,L,WCSP,386896,,"Hortus Kew.","3: 338","","1789",kew-6364
kew-21147,A,Betulaceae,,Betula,,"alnus",var.,"rugosa","Du Roi",Synonym,,L,WCSP,21147,,"Diss. Inaug. Obs. Bot.","32","","1771",kew-6448
kew-21148,A,Betulaceae,,Betula,,"alnus",var.,"serrulata","(Aiton) Michx.",Synonym,,L,WCSP,21148,,"Fl. Bor.-Amer.","2: 181","","1803",kew-6598
kew-21149,A,Betulaceae,,Betula,,"alnus-crispa",,"","Steud.",Synonym,,H,WCSP,21149,295034-1,"Nomencl. Bot.","ed. 2, 1: 201","","1840",kew-466798
kew-21150,A,Betulaceae,,Betula,×,"alpestris",,"","Fr.",Accepted,,H,WCSP,21150,295037-1,"Summa Veg. Scand.","1: 212","","1845",
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
kew-21155,A,Betulaceae,,Betula,,"ambigua",,"","Hampe ex Rchb.",Synonym,,H,WCSP,21155,295039-1,"Icon. Fl. Germ. Helv.","12: 2","","1850",kew-21636
kew-21156,A,Betulaceae,,Betula,,"americana",,"","Buc'hoz",Synonym,Invalid,H,WCSP,21156,295040-1,"Herb. Color. Amérique","t. 36","","1783",kew-21527
kew-21157,A,Betulaceae,,Betula,,"andreji",,"","V.N.Vassil.",Synonym,,H,WCSP,21157,107712-1,"Bot. Mater. Gerb. Bot. Inst. Komarova Akad. Nauk S.S.S.R.","19: 90","","1959",kew-21636
kew-21158,A,Betulaceae,,Betula,×,"andrewsii",,"","A.Nelson",Synonym,,H,WCSP,21158,32115-2,"Bot. Gaz.","43: 281","","1907",kew-21790
tro-3600452,A,Betulaceae,,Betula,,"andrewsii",,"","A. Nelson",Synonym,,L,TRO,3600452,,"Bot. Gaz.","43: 279","279","1907",tro-3600117
tro-50271662,A,Betulaceae,,Betula,,"angulata",,"","Steud.",Unresolved,,L,TRO,50271662,295041-1,"Nomencl. Bot. (ed. 2)","1: 201","201","1840",
kew-21160,A,Nothofagaceae,,Betula,,"antarctica",,"","G.Forst.",Synonym,,H,WCSP,21160,295042-1,"Comment. Soc. Regiae Sci. Gott.","9: 45","","1789",kew-135748
kew-21161,A,Betulaceae,,Betula,,"apoiensis",,"","Nakai ex H.Hara",Accepted,,H,WCSP,21161,,"J. Jap. Bot.","10: 227","","1934",
kew-21162,A,Betulaceae,,Betula,×,"arbuscula",,"","Dugle",Synonym,,H,WCSP,21162,324787-2,"Canad. J. Bot.","44: 983","","1966",kew-21276
kew-21163,A,Betulaceae,,Betula,,"arguta",,"","Schltdl.",Synonym,,H,WCSP,21163,32116-2,"Linnaea","7: 139","","1832",kew-6248
kew-21164,A,Betulaceae,,Betula,×,"aschersoniana",,"","Hayek",Unresolved,,L,WCSP,21164,107716-1,"Fl. Steiermark","1: 105","","1908",
kew-468635,A,Betulaceae,,Betula,,"ashburneri",,"","McAll. & Rushforth",Accepted,,H,WCSP,468635,,"Curtis's Bot. Mag.","28: 116","","2011",
kew-21165,A,Betulaceae,,Betula,,"asplenifolia",,"","Regel",Synonym,,H,WCSP,21165,295044-1,"Prodr.","16(2): 167","","1868",kew-21636
kew-21166,A,Betulaceae,,Betula,×,"atrata",,"","Domin",Synonym,,H,WCSP,21166,107717-1,"Bull. Int. Acad. Tchéque Sci., Cl. Sci. Math. Nat. Méd.","28: 249","","1927",kew-21167
kew-21167,A,Betulaceae,,Betula,×,"aurata",,"","Borkh.",Accepted,,H,WCSP,21167,295045-1,"Theor. Prakt. Handb. Forstbot.","1: 378","","1800",
kew-221333,A,Betulaceae,,Betula,×,"aurata",var.,"rhombifolia","(Tausch) Tzvelev",Synonym,,L,WCSP,221333,50426219-2,"Novosti Sist. Vyssh. Rast.","34: 60","","2002",kew-21167
kew-21168,A,Betulaceae,,Betula,,"aurea",,"","Steud.",Synonym,,H,WCSP,21168,295046-1,"Nomencl. Bot.","ed. 2, 1: 201","","1840",kew-21636
kew-21169,A,Betulaceae,,Betula,,"austrosichotensis",,"","V.N.Vassil. & V.I.Baranov",Accepted,,H,WCSP,21169,903689-1,"Novosti Sist. Vyssh. Rast.","21: 60","","1984",
kew-21170,A,Betulaceae,,Betula,,"austrosinensis",,"","Chun ex P.C.Li",Synonym,,H,WCSP,21170,107718-1,"Acta Phytotax. Sin.","17(2): 89","","1979",kew-21394
kew-21171,A,Betulaceae,,Betula,×,"avatshensis",,"","Kom.",Accepted,,H,WCSP,21171,,"Repert. Spec. Nov. Regni Veg.","13: 166","","1914",
kew-21172,A,Betulaceae,,Betula,,"baeumkeri",,"","H.J.P.Winkl.",Synonym,,H,WCSP,21172,,"Pflanzenr.","IV, 61: 91","","1904",kew-21462
kew-21173,A,Betulaceae,,Betula,,"baicalensis",,"","Sukaczev",Synonym,,H,WCSP,21173,107720-1,"Izv. Imp. Akad. Nauk","8: 233","","1914",kew-21272
tro-50270182,A,Betulaceae,,Betula,×,"baicalensis",,"","Sukaczev",Unresolved,,L,TRO,50270182,107720-1,"Izv. Imp. Akad. Nauk","8: 233","233","1914",
kew-21174,A,Betulaceae,,Betula,,"baicalia",,"","V.N.Vassil.",Synonym,,H,WCSP,21174,107721-1,"Bot. Mater. Gerb. Bot. Inst. Komarova Akad. Nauk S.S.S.R.","18: 73","","1957",kew-21636
kew-21175,A,Betulaceae,,Betula,,"baranovii",,"","Sukaczev",Synonym,,H,WCSP,21175,107722-1,"Trudy Mongol'sk. Komiss.","14: 1-45","","1934",kew-21492
kew-21176,A,Betulaceae,,Betula,,"barguzinensis",,"","Popov",Synonym,Illegitimate,H,WCSP,21176,107723-1,"Fl. Centr. Sibir.","2: 814","","1959",kew-21272
kew-221334,A,Betulaceae,,Betula,,"baschkirica",,"","Tzvelev",Accepted,,H,WCSP,221334,50426223-2,"Novosti Sist. Vyssh. Rast.","34: 65","","2002",
kew-21177,A,Betulaceae,,Betula,,"beeniana",,"","A.Nelson",Synonym,,H,WCSP,21177,32117-2,"Amer. J. Bot.","32: 284","","1945",kew-21535
kew-21180,A,Betulaceae,,Betula,,"bhojpattra",,"","Lindl. ex Wall.",Synonym,,H,WCSP,21180,295049-1,"Pl. Asiat. Rar.","2: 7","","1830",kew-21791
kew-342776,A,Betulaceae,,Betula,,"bhojpattra",var.,"glandulifera","Regel",Synonym,,L,WCSP,342776,,"Bull. Soc. Imp. Naturalistes Moscou","38(2): 416","","1865",kew-21791
kew-21178,A,Betulaceae,,Betula,,"bhojpattra",var.,"jacquemontii","(Spach) Regel",Synonym,,L,WCSP,21178,,"Nouv. Mém. Soc. Imp. Naturalistes Moscou","13(2): 118","","1861",kew-21793
kew-21181,A,Betulaceae,,Betula,,"bhojpattra",var.,"japonica","Shirai",Synonym,,L,WCSP,21181,,"Bot. Mag. (Tokyo)","19: 165","","1905",kew-21287
kew-21182,A,Betulaceae,,Betula,,"bhojpattra",var.,"latifolia","Regel",Synonym,,L,WCSP,21182,,"Bull. Soc. Imp. Naturalistes Moscou","38(2): 416","","1865",kew-21791
kew-21183,A,Betulaceae,,Betula,,"bhojpattra",var.,"sinensis","Franch.",Synonym,,L,WCSP,21183,,"J. Bot. (Morot)","13: 207","","1899",kew-21133
kew-21184,A,Betulaceae,,Betula,,"bhojpattra",var.,"subcordata","Regel",Synonym,,L,WCSP,21184,,"Bull. Soc. Imp. Naturalistes Moscou","38(2): 416","","1865",kew-21355
kew-21185,A,Betulaceae,,Betula,,"bomiensis",,"","P.C.Li",Accepted,,H,WCSP,21185,901592-1,"in Fl. Xizangica","1: 484","","1983",
kew-21186,A,Betulaceae,,Betula,,"borealis",,"","Spach",Synonym,,H,WCSP,21186,295050-1,"Ann. Sci. Nat., Bot.","II, 15: 196","","1841",kew-21671
tro-3600460,A,Betulaceae,,Betula,,"borealis",,"","Auth.",Synonym,,M,TRO,3600460,,"","","","",kew-21275
kew-21187,A,Betulaceae,,Betula,×,"borggreveana",,"","Zabel ex H.J.P.Winkl.",Unresolved,,L,WCSP,21187,,"Pflanzenr.","IV, 61: 94","","1904",
tro-50271664,A,Betulaceae,,Betula,,"borggreveana",,"","Zabel ex H. Winkl.",Unresolved,,L,TRO,50271664,295051-1,"Pflanzenr.","IV,61: 94","94","",
kew-21188,A,Betulaceae,,Betula,,"bornmuelleri",,"","V.N.Vassil.",Synonym,,H,WCSP,21188,107725-1,"Bot. Zhurn. (Moscow & Leningrad)","48: 904","","1963",kew-21728
kew-21189,A,Betulaceae,,Betula,,"borysthenica",,"","Klokov",Synonym,,H,WCSP,21189,107726-1,"Bot. Zhurn. (Kiev)","3: 18","","1947",kew-21649
kew-21190,A,Betulaceae,,Betula,×,"bottnica",,"","Mela",Accepted,,H,WCSP,21190,,"Lyhk. Kasv.","ed. 3: 314","","1895",
kew-21191,A,Betulaceae,,Betula,,"brachylepis",,"","V.N.Vassil.",Synonym,,H,WCSP,21191,107727-1,"Trudy Inst. Ekol. Rast.","69: 89","","1969",kew-21582
kew-21192,A,Betulaceae,,Betula,,"broccembergensis",,"","Bechst.",Synonym,,H,WCSP,21192,295052-1,"Forstbot.","297","","1814",kew-21636
kew-468529,A,Betulaceae,,Betula,,"browicziana",,"","Güner",Accepted,,H,WCSP,468529,60456740-2,"Do?a Bilim Derg, A, 2 Biyol.","9: 270","","1985",
kew-21193,A,Betulaceae,,Betula,,"bucharica",,"","V.N.Vassil.",Synonym,,H,WCSP,21193,107728-1,"Bot. Zhurn. (Moscow & Leningrad)","48: 905","","1963",kew-21555
kew-21194,A,Betulaceae,,Betula,×,"caerulea",,"","Blanch.",Accepted,,H,WCSP,21194,32119-2,"Betula","1: 1","","1904",
kew-330280,A,Betulaceae,,Betula,×,"caerulea",var.,"blanchardii","Sarg.",Synonym,,L,WCSP,330280,32120-2,"Man. Trees","202","","1905",kew-21194
kew-21195,A,Betulaceae,,Betula,×,"caerulea",var.,"cunninghamii","B.Boivin",Synonym,,L,WCSP,21195,,"Natural. Canad.","94: 230","","1967",kew-21194
kew-21196,A,Betulaceae,,Betula,×,"caerulea",var.,"grandis","Blanch.",Synonym,,L,WCSP,21196,32124-2,"Betula","1: 1","","1904",kew-21194
kew-21197,A,Betulaceae,,Betula,×,"caerulea-grandis",,"","Blanch.",Synonym,,H,WCSP,21197,32123-2,"Betula","1: 1","","1904",kew-21194
kew-21198,A,Betulaceae,,Betula,,"cajanderi",,"","Sukaczev",Synonym,,H,WCSP,21198,107731-1,"Acta Forest. Fenn.","34(13): 3","","1929",kew-21582
kew-21199,A,Betulaceae,,Betula,,"cajanderi",f.,"fruticans","Kozhevn.",Synonym,,L,WCSP,21199,915630-1,"Bot. Zhurn. (Moscow & Leningrad)","59: 504","","1974",kew-21582
kew-21200,A,Betulaceae,,Betula,,"cajanderi",subsp.,"minutifolia","Kozhevn.",Synonym,,L,WCSP,21200,915631-1,"Bot. Zhurn. (Moscow & Leningrad)","59: 504","","1974",kew-21610
kew-21201,A,Betulaceae,,Betula,,"calcicola",,"","(W.W.Sm.) P.C.Li",Accepted,,H,WCSP,21201,107733-1,"in Fl. Reipubl. Popul. Sin.","21: 137","","1979",
kew-21202,A,Betulaceae,,Betula,,"callosa",,"","Notø",Synonym,,H,WCSP,21202,107734-1,"Tromsø Mus. Aarsh.","23: 158","","1901",kew-21636
tro-3600230,A,Betulaceae,,Betula,,"callosa",,"","Lindq.",Accepted,,M,TRO,3600230,,"","","","",
tro-50270653,A,Betulaceae,,Betula,,"camtschatica",,"","Regel",Unresolved,,L,TRO,50270653,,"Nouv. Mém. Soc. Imp. Naturalistes Moscou","13: 107","107","1861",
kew-21203,A,Betulaceae,,Betula,,"canadensis",,"","K.Koch",Synonym,,H,WCSP,21203,295053-1,"Dendrologie","2(2): 656","","1873",kew-21636
kew-21204,A,Betulaceae,,Betula,,"candelae",,"","Koidz.",Synonym,,H,WCSP,21204,107735-1,"Bot. Mag. (Tokyo)","27: 147","","1913",kew-21479
tro-3600088,A,Betulaceae,,Betula,,"carelica",,"","Merk.",Unresolved,,L,TRO,3600088,,"","","","",
kew-21205,A,Betulaceae,,Betula,,"carpatica",,"","Waldst. & Kit. ex Willd.",Synonym,,H,WCSP,21205,295054-1,"Sp. Pl.","4: 464","","1805",kew-21649
kew-469164,A,Betulaceae,,Betula,,"carpatica",f.,"duplicatoserrata","Kindb.",Synonym,,L,WCSP,469164,,"Bot. Not.","1909: 117","","1909",kew-21649
kew-21206,A,Betulaceae,,Betula,,"carpatica",var.,"hercynica","Rchb.",Synonym,,L,WCSP,21206,,"Icon. Fl. Germ. Helv.","12: 2","","1850",kew-21649
kew-21208,A,Betulaceae,,Betula,,"carpatica",var.,"sudetica","Rchb.",Synonym,,L,WCSP,21208,,"Icon. Fl. Germ. Helv.","12: 2","","1850",kew-21582
kew-21209,A,Betulaceae,,Betula,,"carpinifolia",,"","Siebold & Zucc.",Synonym,Illegitimate,H,WCSP,21209,295055-1,"Abh. Math.-Phys. Cl. Königl. Sächs. Ges. Wiss.","4(3): 228","","1846",kew-21355
kew-21210,A,Betulaceae,,Betula,,"carpinifolia",,"","Ehrh.",Synonym,,H,WCSP,21210,295056-1,"Beitr. Naturk.","6: 99","","1791",kew-21443
kew-21211,A,Betulaceae,,Betula,,"castanae",,"","Buch.-Ham. ex Hook.f.",Synonym,,H,WCSP,21211,295057-1,"Fl. Brit. India","5: 559","","1888",kew-21791
kew-21212,A,Betulaceae,,Betula,,"caucasica",,"","Litv. ex Leskov",Synonym,Invalid,H,WCSP,21212,107736-1,"Bot. Zhurn. S.S.S.R.","17: 259","","1932",kew-21456
kew-21213,A,Betulaceae,,Betula,,"celtiberica",,"","Rothm. & Vasc.",Synonym,,H,WCSP,21213,107737-1,"Bol. Soc. Brot.","II, 14: 147","","1940",kew-21636
kew-21214,A,Betulaceae,,Betula,,"ceratoptera",,"","G.H.Liu & Y.C.Ma",Accepted,,H,WCSP,21214,938194-1,"Bull. Bot. Res., Harbin","9(4): 55","","1989",
kew-21215,A,Betulaceae,,Betula,,"chichibuensis",,"","H.Hara",Accepted,,H,WCSP,21215,107738-1,"J. Jap. Bot.","31: 122","","1956",
kew-21216,A,Betulaceae,,Betula,,"chinensis",,"","Maxim.",Accepted,,H,WCSP,21216,295058-1,"Bull. Soc. Imp. Naturalistes Moscou","54(1): 47","","1879",
kew-21217,A,Betulaceae,,Betula,,"chinensis",var.,"angusticarpa","H.J.P.Winkl.",Synonym,,L,WCSP,21217,,"Pflanzenr.","IV, 61: 67","","1904",kew-21216
tro-3600625,A,Betulaceae,,Betula,,"chinensis",var.,"chinensis","",Synonym,,L,TRO,3600625,,"","","","",kew-21216
kew-452485,A,Betulaceae,,Betula,,"chinensis",var.,"delavayi","(Franch.) C.K.Schneid.",Synonym,,L,WCSP,452485,,"Ill. Handb. Laubholzk.","2: 884","","1912",kew-21264
kew-21218,A,Betulaceae,,Betula,,"chinensis",var.,"fargesii","(Franch.) P.C.Li",Synonym,,L,WCSP,21218,874731-1,"in Fl. Reipubl. Popul. Sin.","21: 135","","1979",kew-21216
kew-21219,A,Betulaceae,,Betula,,"chinensis",f.,"linearisquama","Hatus.",Synonym,,L,WCSP,21219,,"Rep. Exp. Forest. Agric. Kyusk. Univ.","5: 54","","1934",kew-21216
kew-21220,A,Betulaceae,,Betula,,"chinensis",var.,"linearisquama","(Hatus.) S.L.Tung",Synonym,,L,WCSP,21220,919706-1,"Bull. Bot. Res., Harbin","1(1-2): 129","","1981",kew-21216
kew-21221,A,Betulaceae,,Betula,,"chinensis",var.,"nana","Liou",Synonym,Invalid,L,WCSP,21221,,"Ill. Fl. Lign. Pl. N. E. China","201","","1955",kew-21216
kew-21222,A,Betulaceae,,Betula,,"chinensis",f.,"nana","(Liou) Kitag.",Synonym,,L,WCSP,21222,874732-1,"Neo-Lineam. Fl. Manshur.","213","","1979",kew-21216
kew-21223,A,Betulaceae,,Betula,,"chitralica",,"","Browicz",Accepted,,H,WCSP,21223,107739-1,"in Fl. Iran.","96: 3","","1972",
kew-21224,A,Betulaceae,,Betula,,"ciliata",,"","Steud.",Unresolved,,L,WCSP,21224,295059-1,"Nomencl. Bot.","ed. 2, 1: 201","","1840",
kew-21225,A,Betulaceae,,Betula,,"collina",,"","Nakai",Unresolved,,L,WCSP,21225,107740-1,"Bot. Mag. (Tokyo)","29: 44","","1915",
kew-21226,A,Betulaceae,,Betula,×,"commixta",,"","Sarg.",Synonym,,H,WCSP,21226,32126-2,"Bot. Gaz.","67: 216","","1919",kew-21790
kew-21227,A,Betulaceae,,Betula,,"concinna",,"","Gunnarsson",Synonym,,H,WCSP,21227,107742-1,"Sv. Fanerogamfl.","202","","1918",kew-21636
tro-3600454,A,Betulaceae,,Betula,×,"conmixta",,"","Sarg.",Synonym,,L,TRO,3600454,,"Man. Tr. N. Am.","1: 218","218","1905",tro-3600117
kew-21228,A,Betulaceae,,Betula,,"cordata",,"","Loisel.",Synonym,,H,WCSP,21228,295060-1,"Not. Fl. France","139","","1810",kew-6294
kew-21229,A,Betulaceae,,Betula,,"cordifolia",,"","Regel",Synonym,,H,WCSP,21229,32238-2,"Novye Mem. Moskovsk. Obshch. Isp. Prir.","13: 86","","1861",kew-21560
kew-21230,A,Betulaceae,,Betula,,"coriacea",,"","Pamp.",Unresolved,,L,WCSP,21230,107744-1,"Nuovo Giorn. Bot. Ital.","n.s., 22: 274","","1915",
kew-21231,A,Betulaceae,,Betula,,"coriacea",,"","Gunnarsson",Synonym,Illegitimate,H,WCSP,21231,107745-1,"Sv. Fanerogamfl.","201","","1918",kew-21649
kew-21232,A,Betulaceae,,Betula,,"coriaceifolia",,"","V.N.Vassil.",Accepted,,H,WCSP,21232,,"Novosti Sist. Vyssh. Rast.","7: 112","","1970 publ. 1971",
kew-21233,A,Betulaceae,,Betula,,"coriifolia",,"","Tausch ex Regel",Synonym,,H,WCSP,21233,295062-1,"Prodr.","16(2): 168","","1868",kew-21636
kew-21234,A,Betulaceae,,Betula,,"corylifolia",,"","Griff.",Unresolved,,L,WCSP,21234,107748-1,"Itin. Pl. Khasyah Mts.","54","","1848",
kew-21235,A,Betulaceae,,Betula,,"corylifolia",,"","Regel & Maxim.",Accepted,,H,WCSP,21235,295063-1,"Bull. Soc. Imp. Naturalistes Moscou","38(2): 417","","1865",
kew-21236,A,Betulaceae,,Betula,,"costata",,"","Trautv.",Accepted,,H,WCSP,21236,295064-1,"Prim. Fl. Amur.","253","","1859",
kew-21237,A,Betulaceae,,Betula,,"costata",var.,"pubescens","S.L.Liou",Synonym,,L,WCSP,21237,,"Bull. Bot. Res., Harbin","1(1-2): 129","","1981",kew-21236
kew-21238,A,Betulaceae,,Betula,,"crassijulis",,"","Musch.",Synonym,,H,WCSP,21238,,"Trudy Kazakhsk. Sel'skhoz. Inst.","4: 196","","1953",kew-21758
tro-3600234,A,Betulaceae,,Betula,,"crassijulis",,"","Muscheg.",Synonym,,M,TRO,3600234,,"?","","","",kew-21758
kew-21239,A,Betulaceae,,Betula,,"crenata",,"","Rydb. ex E.J.Butler",Synonym,,H,WCSP,21239,,"Bull. Torrey Bot. Club","36: 429","","1909",kew-21505
kew-21240,A,Betulaceae,,Betula,,"crispa",,"","Aiton",Synonym,,H,WCSP,21240,,"Hortus Kew.","3: 339","","1789",kew-466798
tro-50271311,A,Betulaceae,,Betula,,"cryptocarpa",,"","Laest.",Unresolved,,L,TRO,50271311,,"Bot. Not.","1856: 109","109","1857",
kew-21242,A,Betulaceae,,Betula,,"cuspidata",,"","Schrad. ex Regel",Synonym,Illegitimate,H,WCSP,21242,295067-1,"Prodr.","16(2): 164","","1868",kew-21620
kew-21243,A,Betulaceae,,Betula,,"cyclophylla",,"","Nakai",Unresolved,,L,WCSP,21243,107750-1,"J. Jap. Bot.","17: 4","","1941",
kew-21244,A,Betulaceae,,Betula,,"cycoviensis",,"","Steud.",Synonym,Spelling variant,H,WCSP,21244,295068-1,"Nomencl. Bot.","1: 107","","1821",kew-21593
kew-21245,A,Betulaceae,,Betula,,"cylindrostachya",,"","Lindl. ex Wall.",Accepted,,H,WCSP,21245,295069-1,"Pl. Asiat. Rar.","2: 7","","1830",
kew-21246,A,Betulaceae,,Betula,,"cylindrostachya",var.,"pilosa","(Regel) Regel",Synonym,,L,WCSP,21246,,"Prodr.","16(2): 189","","1868",kew-21139
kew-21247,A,Betulaceae,,Betula,,"cylindrostachya",var.,"resinosa","Diels",Synonym,,L,WCSP,21247,,"Bot. Jahrb. Syst.","29: 282","","1900",kew-21462
kew-21248,A,Betulaceae,,Betula,,"cylindrostachya",var.,"subglabra","Regel",Synonym,,L,WCSP,21248,,"Prodr.","16(2): 189","","1868",kew-21139
tro-3600639,A,Betulaceae,,Betula,,"cylindrostachys",,"","Wall. ex Diels",Unresolved,,L,TRO,3600639,,"Bot. Jahrb. Syst.","29(2): 281–282","281","1900",
kew-21249,A,Betulaceae,,Betula,,"czatkalensis",,"","V.N.Vassil.",Synonym,,H,WCSP,21249,,"Novosti Sist. Vyssh. Rast.","7: 100","","1970 publ. 1971",kew-21492
kew-21250,A,Betulaceae,,Betula,,"czerepanovii",,"","N.I.Orlova",Synonym,,H,WCSP,21250,107752-1,"Vestn. Leningradsk. Univ.","1978(3): 60","","1978",kew-21659
kew-221335,A,Betulaceae,,Betula,,"czerepanovii",var.,"nasarovii","Tzvelev",Synonym,,L,WCSP,221335,50426222-2,"Novosti Sist. Vyssh. Rast.","34: 63","","2002",kew-21659
kew-21251,A,Betulaceae,,Betula,,"dahurica",,"","Pall.",Accepted,,H,WCSP,21251,295071-1,"Fl. Ross.","1: 60","","1784",
kew-21252,A,Betulaceae,,Betula,,"dahurica",var.,"americana","Regel",Synonym,,L,WCSP,21252,32127-2,"Prodr.","16(2): 175","","1868",kew-21557
kew-21253,A,Betulaceae,,Betula,,"dahurica",var.,"maximowiczii","(Rupr.) Trautv.",Synonym,,L,WCSP,21253,,"Prim. Fl. Amur.","250","","1859",kew-21251
kew-21254,A,Betulaceae,,Betula,,"dahurica",f.,"oblongifolia","(Liou) S.L.Tung",Synonym,,L,WCSP,21254,919707-1,"Bull. Bot. Res., Harbin","1(1-2): 130","","1981",kew-21251
kew-21255,A,Betulaceae,,Betula,,"dahurica",var.,"oblongifolia","Liou",Synonym,,L,WCSP,21255,,"Ill. Fl. Lign. Pl. N. E. China","196","","1955",kew-21251
kew-21256,A,Betulaceae,,Betula,,"dahurica",var.,"okuboi","Miyabe & Tatew.",Synonym,,L,WCSP,21256,,"Trans. Sapporo Nat. Hist. Soc.","17: 49","","1941",kew-21251
kew-21257,A,Betulaceae,,Betula,,"dahurica",var.,"ovalifolia","Liou",Synonym,,L,WCSP,21257,,"Ill. Fl. Lign. Pl. N. E. China","196","","1955",kew-21251
kew-21258,A,Betulaceae,,Betula,,"dahurica",f.,"ovalifolia","(Liou) S.L.Tung",Synonym,,L,WCSP,21258,919708-1,"Bull. Bot. Res., Harbin","1(1-2): 130","","1981",kew-21251
kew-21259,A,Betulaceae,,Betula,,"dahurica",f.,"tiliifolia","(Liou) S.L.Tung",Synonym,,L,WCSP,21259,919709-1,"Bull. Bot. Res., Harbin","1(1-2): 130","","1981",kew-21251
kew-21260,A,Betulaceae,,Betula,,"dahurica",var.,"tiliifolia","Liou",Synonym,,L,WCSP,21260,,"Ill. Fl. Lign. Pl. N. E. China","196","","1955",kew-21251
kew-21262,A,Betulaceae,,Betula,,"dalecarlica",,"","L.f.",Synonym,,H,WCSP,21262,295070-1,"Suppl. Pl.","416","","1782",kew-21636
kew-21263,A,Betulaceae,,Betula,,"darvasica",,"","Ovcz., Czukav. & Shibkova",Unresolved,,L,WCSP,21263,107753-1,"in Fl. Tadzhikskoi SSR","3: 123, 655","","1968",
kew-21264,A,Betulaceae,,Betula,,"delavayi",,"","Franch.",Accepted,,H,WCSP,21264,295072-1,"J. Bot. (Morot)","13: 205","","1899",
kew-21265,A,Betulaceae,,Betula,,"delavayi",var.,"calcicola","W.W.Sm.",Synonym,,L,WCSP,21265,,"Notes Roy. Bot. Gard. Edinburgh","8: 333","","1915",kew-21201
tro-3600610,A,Betulaceae,,Betula,,"delavayi",var.,"delavayi","",Synonym,,L,TRO,3600610,,"","","","",kew-21264
kew-21266,A,Betulaceae,,Betula,,"delavayi",var.,"forrestii","W.W.Sm.",Synonym,,L,WCSP,21266,,"Notes Roy. Bot. Gard. Edinburgh","8: 332","","1915",kew-21264
kew-21267,A,Betulaceae,,Betula,,"delavayi",var.,"microstachya","P.C.Li",Synonym,,L,WCSP,21267,874733-1,"Acta Phytotax. Sin.","17(1): 90","","1979",kew-21264
kew-21268,A,Betulaceae,,Betula,,"delavayi",var.,"polyneura","L.C.Hu",Synonym,,L,WCSP,21268,,"Acta Phytotax. Sin.","17(1): 90","","1979",kew-21264
kew-21269,A,Betulaceae,,Betula,,"demetrii",,"","I.V.Vassil.",Synonym,,H,WCSP,21269,107754-1,"Bot. Mater. Gerb. Bot. Inst. Komarova Akad. Nauk S.S.S.R.","21: 95","","1961",kew-21582
kew-21270,A,Betulaceae,,Betula,,"derbetica",,"","P.A.Baranov",Synonym,,H,WCSP,21270,,"Trudy Mongol'sk. Komiss.","14: 1-45","","1934",kew-21492
kew-21271,A,Betulaceae,,Betula,,"dioica",,"","Pall.",Synonym,Invalid,H,WCSP,21271,295073-1,"Reise Russ. Reich.","3: 321","","1776",kew-21251
kew-21272,A,Betulaceae,,Betula,,"divaricata",,"","Ledeb.",Accepted,,H,WCSP,21272,295074-1,"Denkschr. Bayer. Bot. Ges. Regensburg","3: 59","","1841",
kew-21273,A,Betulaceae,,Betula,,"dolicholepis",,"","Ovcz., Czukav. & Shibkova",Accepted,,H,WCSP,21273,107756-1,"in Fl. Tadzhikskoi SSR","3: 126, 655","","1968",
kew-21274,A,Betulaceae,,Betula,×,"dugleana",,"","Lepage",Accepted,,H,WCSP,21274,304963-2,"Naturaliste Canad.","103: 226","","1976",
kew-21275,A,Betulaceae,,Betula,×,"dutillyi",,"","Lepage",Accepted,,H,WCSP,21275,324788-2,"Naturaliste Canad.","79: 124","","1952",
kew-21276,A,Betulaceae,,Betula,×,"eastwoodiae",,"","Sarg.",Accepted,,H,WCSP,21276,32128-2,"Bot. Gaz.","67: 216","","1919",
tro-3600116,A,Betulaceae,,Betula,×,"eastwoodiae",,"","Dugle",Unresolved,,L,TRO,3600116,,"Canad. J. Bot.","44: 966","966","1966",
kew-21277,A,Betulaceae,,Betula,,"ellipticifolia",,"","V.N.Vassil.",Synonym,,H,WCSP,21277,107761-1,"Bot. Mater. Gerb. Bot. Inst. Komarova Akad. Nauk S.S.S.R.","22: 80","","1963",kew-21582
kew-21278,A,Betulaceae,,Betula,,"elrodiana",,"","E.J.Butler",Synonym,,H,WCSP,21278,,"Bull. Torrey Bot. Club","36: 426","","1909",kew-21535
kew-21279,A,Betulaceae,,Betula,,"emarginata",,"","Ehrh.",Synonym,Invalid,H,WCSP,21279,295075-1,"Beitr. Naturk.","5: 158","","1790",kew-6364
kew-21280,A,Betulaceae,,Betula,,"ermanii",,"","Cham.",Accepted,,H,WCSP,21280,295076-1,"Linnaea","6: 537","","1831",
kew-21281,A,Betulaceae,,Betula,,"ermanii",var.,"acutifolia","H.J.P.Winkl.",Synonym,,L,WCSP,21281,,"Pflanzenr.","IV, 61: 66","","1904",kew-21280
kew-342874,A,Betulaceae,,Betula,,"ermanii",var.,"communis","Koidz.",Synonym,,L,WCSP,342874,,"Bot. Mag. (Tokyo)","27: 149","","1913",kew-21280
kew-342879,A,Betulaceae,,Betula,,"ermanii",var.,"corticosa","Nakai",Synonym,,L,WCSP,342879,,"Rep. Veg. Daisetsusan","45","","1930",kew-21280
kew-342880,A,Betulaceae,,Betula,,"ermanii",f.,"corticosa","(Nakai) Sugim.",Synonym,,L,WCSP,342880,,"New Keys Jap. Trees","458","","1961",kew-21280
kew-21282,A,Betulaceae,,Betula,,"ermanii",var.,"costata","(Trautv.) Regel",Synonym,,L,WCSP,21282,,"Nouv. Mém. Soc. Imp. Naturalistes Moscou","13(2): 123","","1861",kew-21236
kew-21283,A,Betulaceae,,Betula,,"ermanii",var.,"ermanii","",Synonym,,L,WCSP,21283,,"Unknown","","","",kew-21280
kew-21284,A,Betulaceae,,Betula,,"ermanii",f.,"ganjuensis","(Koidz.) T.Shimizu",Synonym,,L,WCSP,21284,921826-1,"New Alp. Fl. Japan Color","2: 357","","1983",kew-21280
kew-21285,A,Betulaceae,,Betula,,"ermanii",var.,"ganjuensis","(Koidz.) Nakai",Synonym,,L,WCSP,21285,,"Bot. Mag. (Tokyo)","40: 163","","1926",kew-21280
kew-342875,A,Betulaceae,,Betula,,"ermanii",var.,"incisa","Koidz.",Synonym,,L,WCSP,342875,,"Bot. Mag. (Tokyo)","27: 148","","1913",kew-21280
kew-21287,A,Betulaceae,,Betula,,"ermanii",var.,"japonica","(Shirai) Koidz.",Accepted,,L,WCSP,21287,,"Bot. Mag. (Tokyo)","27: 149","","1913",
kew-21288,A,Betulaceae,,Betula,,"ermanii",subsp.,"lanata","(Regel) A.Skvorts.",Synonym,,L,WCSP,21288,,"Arealyderev. Kustarek. SSSR","1: 90","","1977",kew-21438
kew-21289,A,Betulaceae,,Betula,,"ermanii",var.,"lanata","Regel",Synonym,,L,WCSP,21289,,"Nouv. Mém. Soc. Imp. Naturalistes Moscou","13(2): 122","","1861",kew-21438
kew-21290,A,Betulaceae,,Betula,,"ermanii",var.,"macrostrobila","Liou",Synonym,,L,WCSP,21290,,"Ill. Fl. Lign. Pl. N. E. China","200","","1955",kew-21280
kew-342873,A,Betulaceae,,Betula,,"ermanii",var.,"nipponica","Maxim.",Synonym,,L,WCSP,342873,,"Bull. Acad. Imp. Sci. Saint-Pétersbourg","32: 622","","1888",kew-21280
kew-342877,A,Betulaceae,,Betula,,"ermanii",f.,"nipponica","(Maxim.) Koidz.",Synonym,,L,WCSP,342877,,"Bot. Mag. (Tokyo)","27: 149","","1913",kew-21280
kew-342876,A,Betulaceae,,Betula,,"ermanii",var.,"parvifolia","Koidz.",Synonym,,L,WCSP,342876,,"Bot. Mag. (Tokyo)","27: 148","","1913",kew-21280
kew-21291,A,Betulaceae,,Betula,,"ermanii",var.,"subcordata","(Regel) Koidz.",Synonym,,L,WCSP,21291,,"Bot. Mag. (Tokyo)","27: 148","","1913",kew-21355
kew-342775,A,Betulaceae,,Betula,,"ermanii",var.,"tomentosa","Regel",Synonym,,L,WCSP,342775,,"Bull. Soc. Imp. Naturalistes Moscou","38(2): 415","","1865",kew-21280
kew-21292,A,Betulaceae,,Betula,,"ermanii",var.,"yingkiliensis","S.L.Liou & Wang",Synonym,,L,WCSP,21292,,"N. E. China","200","","1955",kew-21280
tro-50271327,A,Betulaceae,,Betula,,"ethmensis",,"","Raf. ex Regel",Unresolved,,L,TRO,50271327,295077-1,"Prodr.","16(2): 163","163","1868",
kew-21294,A,Betulaceae,,Betula,,"etnensis",,"","Raf.",Synonym,,H,WCSP,21294,295078-1,"Specchio Sci.","1: 17","","1814",kew-21582
kew-21295,A,Betulaceae,,Betula,,"evenkiensis",,"","Polozhij",Synonym,,H,WCSP,21295,107763-1,"Sist. Zametki Mater. Gerb. Krylova Tomsk. Gosud. Univ. Kuybysheva","85(27): 5","","1974 publ. 1975",kew-21543
tro-3600617,A,Betulaceae,,Betula,,"exalata",,"","S. Moore",Synonym,,M,TRO,3600617,295079-1,"J. Linn. Soc., Bot.","17(102): 386, pl. 16, f. 8–10","386","1879",kew-21216
kew-21296,A,Betulaceae,,Betula,,"exaltata",,"","S.Moore",Synonym,,H,WCSP,21296,,"J. Linn. Soc., Bot.","17: 386","","1880",kew-21216
kew-21297,A,Betulaceae,,Betula,,"excelsa",,"","Pursh",Synonym,Illegitimate,H,WCSP,21297,,"Fl. Amer. Sept.","2: 621","","1813",kew-21135
kew-21298,A,Betulaceae,,Betula,,"excelsa",,"","Aiton",Synonym,,H,WCSP,21298,,"Hortus Kew.","3: 337","","1789",kew-21557
kew-21299,A,Betulaceae,,Betula,,"excelsa",,"","Hook.",Synonym,Illegitimate,H,WCSP,21299,295082-1,"Fl. Bor.-Amer.","2: 156","","1838",kew-21443
kew-21300,A,Betulaceae,,Betula,,"excelsa",var.,"canadensis","Wangenh.",Synonym,,L,WCSP,21300,,"Beytr. Teut. Forstwiss.","86","","1787",kew-21620
kew-21301,A,Betulaceae,,Betula,,"exilis",,"","Sukaczev",Synonym,,H,WCSP,21301,32130-2,"Trudy Bot. Muz. Imp. Akad. Nauk","8: 213","","1911",kew-21508
kew-21302,A,Betulaceae,,Betula,,"extremiorientalis",,"","Kuzen. & V.N.Vassil.",Synonym,,H,WCSP,21302,,"Vestn. Dal'nevost. Fil. Akad. Nauk S.S.S.R.","21 : 161","","1936",kew-343069
kew-21303,A,Betulaceae,,Betula,,"falcata",,"","V.N.Vassil.",Accepted,,H,WCSP,21303,,"Novosti Sist. Vyssh. Rast.","7: 120","","1970 publ. 1971",
kew-21304,A,Betulaceae,,Betula,,"fargesii",,"","Franch.",Synonym,,H,WCSP,21304,295083-1,"J. Bot. (Morot)","13: 205","","1899",kew-21216
kew-21305,A,Betulaceae,,Betula,,"fauriei",,"","H.Lév. ex Nakai",Synonym,Invalid,H,WCSP,21305,107767-1,"Fl. Sylv. Kor.","2: 35","","1915",kew-21216
kew-21306,A,Betulaceae,,Betula,,"fedtschenkoana",,"","V.N.Vassil.",Synonym,,H,WCSP,21306,,"Novosti Sist. Vyssh. Rast.","7: 103","","1970 publ. 1971",kew-21492
kew-21307,A,Betulaceae,,Betula,×,"fennica",,"","Dörfl.",Synonym,,H,WCSP,21307,107769-1,"Exsicc. (Herb. Norm.)","4375","","1902",kew-21190
kew-21308,A,Betulaceae,,Betula,,"ferganensis",,"","V.N.Vassil.",Accepted,,H,WCSP,21308,,"Novosti Sist. Vyssh. Rast.","7: 108","","1970 publ. 1971",
kew-21309,A,Betulaceae,,Betula,,"finituma",,"","Notø",Unresolved,,L,WCSP,21309,107771-1,"Tromsø Mus. Aarsh.","23: 159","","1901",
kew-21310,A,Betulaceae,,Betula,,"fontinalis",,"","Sarg.",Synonym,,H,WCSP,21310,32131-2,"Bot. Gaz.","31: 239","","1901",kew-21535
kew-330281,A,Betulaceae,,Betula,,"fontinalis",var.,"inopina","(Jeps.) Jeps.",Synonym,,L,WCSP,330281,32132-2,"Man. Fl. Pl. Calif.","270","","1923",kew-21535
kew-452490,A,Betulaceae,,Betula,,"fontinalis",f.,"inopina","Jeps.",Synonym,,L,WCSP,452490,,"Fl. Calif.","1: 349","","1909",kew-21535
kew-330282,A,Betulaceae,,Betula,,"fontinalis",var.,"piperi","(Britton) Sarg.",Synonym,,L,WCSP,330282,32133-2,"J. Arnold Arbor.","1: 65","","1919",kew-21790
kew-330283,A,Betulaceae,,Betula,,"fontinalis",var.,"utahensis","(Britton) Garrett",Synonym,,L,WCSP,330283,,"Spring Fl. Wasatch","ed. 3: 19","","1917",kew-21790
kew-21311,A,Betulaceae,,Betula,,"fontqueri",,"","Rothm.",Synonym,,H,WCSP,21311,107774-1,"Bol. Soc. Brot.","II, 14: 149","","1940",kew-21587
kew-221336,A,Betulaceae,,Betula,,"fontqueri",subsp.,"parvibracteata","(Peinado, G.Moreno & A.Velasco) Rivas Mart. & Ladero",Synonym,,L,WCSP,221336,20009211-1,"Itinera Geobot.","15: 698","","2002",kew-21587
kew-21312,A,Betulaceae,,Betula,,"forrestii",,"","Hand.-Mazz.",Accepted,,H,WCSP,21312,107775-1,"Symb. Sin.","7: 20","","1929",
kew-21313,A,Betulaceae,,Betula,,"forrestii",var.,"calcicola","(W.W.Sm.) Hand.-Mazz.",Synonym,,L,WCSP,21313,,"Symb. Sin.","7: 20","","1929",kew-21201
kew-21314,A,Betulaceae,,Betula,,"friesii",,"","Larss. ex Hartm.",Synonym,,H,WCSP,21314,,"Handb. Skand. Fl.","ed. 3: 376","","1838",kew-21636
kew-469166,A,Betulaceae,,Betula,,"friesii",var.,"oxyodontia","Kindb.",Synonym,,L,WCSP,469166,,"Bot. Not.","1909: 118","","1909",kew-21636
kew-469165,A,Betulaceae,,Betula,,"friesii",var.,"subalpina","Larss. ex Kindb.",Synonym,,L,WCSP,469165,,"Bot. Not.","1909: 118","","1909",kew-21636
kew-21315,A,Betulaceae,,Betula,,"fruticans",,"","Pall.",Synonym,Invalid,H,WCSP,21315,295085-1,"Reise Russ. Reich.","3: t. kk","","1776",kew-21373
kew-21316,A,Betulaceae,,Betula,,"fruticosa",,"","Willd.",Synonym,Illegitimate,H,WCSP,21316,295086-1,"Sp. Pl.","4: 467","","1805",kew-21543
kew-343069,A,Betulaceae,,Betula,,"fruticosa",,"","Pall.",Accepted,,H,WCSP,343069,,"Reise Russ. Reich.","3: 758","","1776",
kew-21317,A,Betulaceae,,Betula,,"fruticosa",var.,"cuneifolia","Regel",Synonym,,L,WCSP,21317,,"Nouv. Mém. Soc. Imp. Naturalistes Moscou","13(2): 93","","1861",kew-21492
kew-21318,A,Betulaceae,,Betula,,"fruticosa",subsp.,"extremiorientalis","(Kuzen. & V.N.Vassil.) Vorosch.",Synonym,,L,WCSP,21318,987725-1,"Florist. Issl. Razn. Raionakh SSSR","162","","1985",kew-343069
kew-21319,A,Betulaceae,,Betula,,"fruticosa",subsp.,"fusca","(Pall.) M.Schemberg",Synonym,,L,WCSP,21319,,"in Fl. Sibir.","5: 67","","1992",kew-21543
kew-452491,A,Betulaceae,,Betula,,"fruticosa",var.,"fusenensis","(Nakai) Liou",Synonym,,L,WCSP,452491,,"Ill. Fl. Lign. Pl. N. E. China","205","","1955",kew-343069
kew-21320,A,Betulaceae,,Betula,,"fruticosa",subsp.,"gmelinii","(Bunge) Kitag.",Synonym,,L,WCSP,21320,874735-1,"Neo-Lineam. Fl. Manshur.","215","","1979",kew-21543
kew-21321,A,Betulaceae,,Betula,,"fruticosa",var.,"gmelinii","(Bunge) Regel",Synonym,,L,WCSP,21321,,"Nouv. Mém. Soc. Imp. Naturalistes Moscou","13(2): 92","","1861",kew-21543
kew-21322,A,Betulaceae,,Betula,,"fruticosa",var.,"macrostachys","S.L.Tung",Synonym,,L,WCSP,21322,916144-1,"Bull. Bot. Res., Harbin","1(1-2): 132","","1981",kew-21543
kew-21323,A,Betulaceae,,Betula,,"fruticosa",var.,"ovalifolia","(Rupr.) S.L.Tung",Synonym,,L,WCSP,21323,919710-1,"Bull. Bot. Res., Harbin","1(1-2): 132","","1981",kew-21543
kew-21324,A,Betulaceae,,Betula,,"fruticosa",var.,"paishanensis","(Nakai) S.L.Tung",Synonym,,L,WCSP,21324,919711-1,"Bull. Bot. Res., Harbin","1(1-2): 132","","1981",kew-21543
kew-21325,A,Betulaceae,,Betula,,"fruticosa",var.,"ruprechtiana","Trautv.",Synonym,,L,WCSP,21325,,"Prim. Fl. Amur.","254","","1859",kew-21543
kew-21326,A,Betulaceae,,Betula,,"fruticosa",subsp.,"ruprechtiana","(Trautv.) Kitag.",Synonym,,L,WCSP,21326,,"Rep. Inst. Sci. Res. Manchoukou","3: 165","","1939",kew-21543
kew-372285,A,Betulaceae,,Betula,,"fujianensis",,"","J.Zeng, Jian H.Li & Z.D.Chen",Accepted,,H,WCSP,372285,,"Bot. J. Linn. Soc.","156: 524","","2008",
kew-21327,A,Betulaceae,,Betula,,"fusca",,"","Pall. ex Georgi",Synonym,,H,WCSP,21327,,"Bemer. Russ. Reich.","1: 234","","1775",kew-21543
kew-21328,A,Betulaceae,,Betula,,"fusenensis",,"","Nakai",Synonym,,H,WCSP,21328,107777-1,"J. Jap. Bot.","14: 743","","1938",kew-343069
kew-21329,A,Betulaceae,,Betula,,"ganjuensis",,"","Koidz.",Synonym,,H,WCSP,21329,107778-1,"Bot. Mag. (Tokyo)","27: 563","","1913",kew-21280
kew-21330,A,Betulaceae,,Betula,,"glabra",,"","Dumort.",Synonym,,H,WCSP,21330,295090-1,"Fl. Belg.","11","","1827",kew-21636
tro-50271269,A,Betulaceae,,Betula,,"glabrata",,"","Wahlenb.",Unresolved,,L,TRO,50271269,,"Fl. Carpat. Princ.","306","306","1814",
kew-21331,A,Betulaceae,,Betula,,"glaebosa",,"","Notø",Unresolved,,L,WCSP,21331,,"Tromsø Mus. Aarsh.","23: 157","","1901",
kew-21332,A,Betulaceae,,Betula,,"glandulifera",,"","(Regel) E.J.Butler",Synonym,,H,WCSP,21332,,"Bull. Torrey Bot. Club","36: 425","","1909",kew-21671
kew-21333,A,Betulaceae,,Betula,×,"glandulosa",,"","Berl.",Unresolved,,L,WCSP,21333,324789-2,"Öfvers. Kongl. Vetensk.-Akad. Förh.","41(2): 63","","1884",
kew-21334,A,Betulaceae,,Betula,,"glandulosa",,"","Michx.",Accepted,,H,WCSP,21334,295091-1,"Fl. Bor.-Amer.","2: 180","","1803",
kew-330284,A,Betulaceae,,Betula,,"glandulosa",var.,"eucycla","Lepage",Synonym,,L,WCSP,330284,32136-2,"Naturaliste Canad.","79: 124","","1952",kew-21334
kew-330285,A,Betulaceae,,Betula,,"glandulosa",var.,"flabellifolia","Rosenv.",Synonym,,L,WCSP,330285,32137-2,"Meddel. Grønland","3: 706","","1892",kew-21334
kew-21335,A,Betulaceae,,Betula,,"glandulosa",var.,"glandulifera","(Regel) Gleason",Synonym,,L,WCSP,21335,32138-2,"Phytologia","4: 23","","1952",kew-21671
tro-3600103,A,Betulaceae,,Betula,,"glandulosa",var.,"glandulosa","",Synonym,,L,TRO,3600103,,"","","","",kew-21334
kew-21336,A,Betulaceae,,Betula,,"glandulosa",var.,"hallii","(Howell) C.L.Hitchc.",Synonym,,L,WCSP,21336,32139-2,"Vasc. Pl. Pacific Northw.","2: 77","","1964",kew-21671
kew-330286,A,Betulaceae,,Betula,,"glandulosa",f.,"intermedia","Kurtz",Synonym,,L,WCSP,330286,293130-2,"Bot. Jahrb. Syst.","19: 405","","1894",kew-21505
kew-330287,A,Betulaceae,,Betula,,"glandulosa",var.,"pumila","Alph.Wood",Synonym,,L,WCSP,330287,32140-2,"Class-book Bot.","346","","1845",kew-21334
kew-330288,A,Betulaceae,,Betula,,"glandulosa",var.,"rhomboidea","Rosenv.",Synonym,,L,WCSP,330288,32141-2,"Meddel. Grønland","3: 707","","1892",kew-21334
kew-21337,A,Betulaceae,,Betula,,"glandulosa",var.,"rotundifolia","(Spach) Regel",Synonym,,L,WCSP,21337,,"Bull. Soc. Imp. Naturalistes Moscou","38(2): 408","","1865",kew-21520
kew-21338,A,Betulaceae,,Betula,,"glandulosa",var.,"sibirica","(Ledeb.) C.K.Schneid.",Synonym,,L,WCSP,21338,,"Ill. Handb. Laubholzk.","1: 105","","1904",kew-21508
tro-50318365,A,Betulaceae,,Betula,,"glandulosa",var.,"sibirica","(Ledeb.) S.F. Blake",Synonym,,L,TRO,50318365,32142-2,"Rhodora","17: 87","87","1915",kew-21508
kew-21340,A,Betulaceae,,Betula,,"glauca",,"","Wender.",Synonym,,H,WCSP,21340,295093-1,"Bot. Zeitung (Berlin)","4: 291","","1846",kew-21636
kew-21341,A,Betulaceae,,Betula,,"globispica",,"","Shirai",Accepted,,H,WCSP,21341,295094-1,"Bot. Mag. (Tokyo)","8: 318","","1894",
kew-21342,A,Betulaceae,,Betula,,"glutinosa",,"","Wallr.",Synonym,Illegitimate,H,WCSP,21342,295096-1,"Sched. Crit.","497","","1822",kew-21649
kew-21343,A,Betulaceae,,Betula,,"glutinosa",,"","(L.) Lam.",Synonym,,H,WCSP,21343,295095-1,"Encycl.","1: 454","","1785",kew-6364
kew-21345,A,Betulaceae,,Betula,,"gmelinii",,"","Bunge",Synonym,,H,WCSP,21345,295097-1,"Verz. Altai Pfl.","113","","1835",kew-21543
kew-21346,A,Betulaceae,,Betula,,"gmelinii",var.,"zyzyphifolia","(C.Wang & S.L.Tung) G.H.Liu & E.W.Ma",Synonym,,L,WCSP,21346,967179-1,"in Fl. Intramongolica","ed. 2, 2: 87","","1990 publ. 1991",kew-21543
kew-21347,A,Betulaceae,,Betula,,"golitsinii",,"","V.N.Vassil.",Synonym,,H,WCSP,21347,107782-1,"Novosti Sist. Vyssh. Rast.","2: 98","","1965",kew-221341
kew-21348,A,Betulaceae,,Betula,,"gordiagini",,"","P.A.Baranov",Synonym,,H,WCSP,21348,,"Trudy Mongol'sk. Komiss.","14: 1-45","","1934",kew-21492
kew-21350,A,Betulaceae,,Betula,,"grandifolia",,"","Litv.",Synonym,Illegitimate,H,WCSP,21350,295098-1,"Trudy Bot. Muz. Imp. Akad. Nauk","2: 98","","1905",kew-21582
kew-21351,A,Betulaceae,,Betula,,"grandifolia",var.,"pubescens","Kuzen.",Synonym,,L,WCSP,21351,,"Trudy Bot. Muz. Imp. Akad. Nauk","12: 64","","1914",kew-21582
kew-21352,A,Betulaceae,,Betula,,"grandis",,"","Schrad.",Synonym,,H,WCSP,21352,295099-1,"Index Seminum (GOET)","1833: 2","","1833",kew-21557
kew-21354,A,Betulaceae,,Betula,,"grayi",,"","Regel",Synonym,,H,WCSP,21354,295100-1,"Bull. Soc. Imp. Naturalistes Moscou","38(2): 406","","1865",kew-21671
kew-21355,A,Betulaceae,,Betula,,"grossa",,"","Siebold & Zucc.",Accepted,,H,WCSP,21355,295101-1,"Abh. Math.-Phys. Cl. Königl. Sächs. Ges. Wiss.","4(3): 228","","1846",
kew-21356,A,Betulaceae,,Betula,×,"grossii",,"","Natho",Unresolved,,L,WCSP,21356,107785-1,"Repert. Spec. Nov. Regni Veg.","61: 265","","1959",
kew-21357,A,Betulaceae,,Betula,,"gummifera",,"","Bertol.",Synonym,,H,WCSP,21357,295102-1,"Fl. Ital.","10: 229","","1855",kew-21582
kew-21358,A,Betulaceae,,Betula,,"guthriei",,"","Sudw.",Unresolved,,L,WCSP,21358,32143-2,"Amer. Forests Forest Life","33: 286","","1927",
kew-21359,A,Betulaceae,,Betula,,"gynoterminalis",,"","Y.C.Hsu & C.J.Wang",Synonym,,H,WCSP,21359,901593-1,"Acta Bot. Yunnan.","5: 381","","1983",kew-21394
kew-21360,A,Betulaceae,,Betula,,"hackelii",,"","Opiz ex Steud.",Synonym,,H,WCSP,21360,295103-1,"Nomencl. Bot.","ed. 2, 1: 201","","1840",kew-21636
kew-21361,A,Betulaceae,,Betula,,"hallii",,"","Howell",Synonym,,H,WCSP,21361,32144-2,"Fl. N. W. Amer.","614","","1902",kew-21671
kew-21362,A,Betulaceae,,Betula,,"halophila",,"","Ching",Accepted,,H,WCSP,21362,,"Acta Phytotax. Sin.","17(1): 88","","1979",
kew-21364,A,Betulaceae,,Betula,×,"harcynica",,"","Wender.",Unresolved,,L,WCSP,21364,107788-1,"Schriften Ges. Beförd. Gesammten Naturwiss. Marburg","2: 263","","1831",
tro-50271302,A,Betulaceae,,Betula,,"harcynica",,"","Wender. ex Steud.",Unresolved,,L,TRO,50271302,295105-1,"Nomencl. Bot. (ed. 2)","1: 201","201","1840",
kew-21365,A,Betulaceae,,Betula,,"henriettae",,"","Sukaczev & V.N.Vassil.",Synonym,,H,WCSP,21365,,"Trudy Inst. For. Acad. Sci. URSS","37: 121","","1958",kew-21272
kew-21366,A,Betulaceae,,Betula,,"heptopotamica",,"","V.N.Vassil.",Accepted,,H,WCSP,21366,,"Novosti Sist. Vyssh. Rast.","7: 115","","1970 publ. 1971",
kew-21367,A,Betulaceae,,Betula,,"hippolyti",,"","Sukaczev",Synonym,,H,WCSP,21367,,"Severn. Mongoliya","1: 161","","1925 publ. 1926",kew-21582
kew-21368,A,Betulaceae,,Betula,,"hissarica",,"","V.N.Vassil.",Synonym,,H,WCSP,21368,107791-1,"Bot. Zhurn. (Moscow & Leningrad)","48: 903","","1963",kew-21728
kew-21369,A,Betulaceae,,Betula,,"honanensis",,"","S.Y.Wang & C.L.Chang",Accepted,,H,WCSP,21369,976443-1,"J. Henan Agric. Coll.","14(2): 6","","1980",
kew-21370,A,Betulaceae,,Betula,×,"hornei",,"","E.J.Butler",Accepted,,H,WCSP,21370,,"Bull. Torrey Bot. Club","36: 425","","1909",
tro-3600065,A,Betulaceae,,Betula,,"hornei",,"","B.T. Butler",Unresolved,,L,TRO,3600065,32145-2,"Bull. Torrey Bot. Club","36(8): 425–426, f. 3","425","1909",
kew-21371,A,Betulaceae,,Betula,,"humilis",,"","Marshall",Synonym,Invalid,H,WCSP,21371,107793-1,"Arbust. Amer.","19","","1785",kew-21443
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
kew-21384,A,Betulaceae,,Betula,,"hupehensis",,"","C.K.Schneid.",Synonym,,H,WCSP,21384,107794-1,"Ill. Handb. Laubholzk.","2: 882","","1912",kew-21462
kew-21385,A,Betulaceae,,Betula,,"hybrida",,"","Blom",Synonym,,H,WCSP,21385,295108-1,"Kongl. Vetensk. Acad. Nya Handl.","7: 186","","1786",kew-21582
kew-21386,A,Betulaceae,,Betula,×,"hybrida",,"","Bechst.",Unresolved,Illegitimate,L,WCSP,21386,,"Arch. Bot. (Leipzig)","2: 74","","1799",
kew-21391,A,Betulaceae,,Betula,,"incana",,"","(L.) L.f.",Synonym,,H,WCSP,21391,107796-1,"Suppl. Pl.","417","","1782",kew-6417
kew-386898,A,Betulaceae,,Betula,,"incana",var.,"angulata","Aiton",Synonym,,L,WCSP,386898,,"Hortus Kew.","3: 339","","1789",kew-6417
kew-386897,A,Betulaceae,,Betula,,"incana",var.,"glauca","Aiton",Synonym,,L,WCSP,386897,,"Hortus Kew.","3: 339","","1789",kew-6448
kew-21392,A,Betulaceae,,Betula,,"incana",var.,"minor","Tourr.",Synonym,,L,WCSP,21392,,"Chlor. Lugd.","27","","1785",kew-6417
kew-21393,A,Betulaceae,,Betula,,"incisa",,"","(Koidz.) Koidz.",Synonym,,H,WCSP,21393,,"Bot. Mag. (Tokyo)","27: 562","","1913",kew-21280
kew-21394,A,Betulaceae,,Betula,,"insignis",,"","Franch.",Accepted,,H,WCSP,21394,295112-1,"J. Bot. (Morot)","13: 206","","1899",
kew-21395,A,Betulaceae,,Betula,,"insularis",,"","V.N.Vassil.",Synonym,,H,WCSP,21395,107798-1,"Novosti Sist. Vyssh. Rast.","6: 39","","1970",kew-21582
kew-21396,A,Betulaceae,,Betula,×,"intermedia",,"","Thomas ex Rchb.",Unresolved,,L,WCSP,21396,295113-1,"Icon. Fl. Germ. Helv.","12: t. 624. f. 1283","","1850",
kew-21397,A,Betulaceae,,Betula,,"ircutensis",,"","Sukaczev",Synonym,,H,WCSP,21397,107799-1,"Trudy Bot. Muz. Imp. Akad. Nauk","8: 226","","1911",kew-21438
kew-21398,A,Betulaceae,,Betula,,"itelmenorum",,"","V.N.Vassil.",Synonym,,H,WCSP,21398,,"Novosti Sist. Vyssh. Rast.","7: 134","","1970 publ. 1971",kew-21272
kew-21399,A,Betulaceae,,Betula,×,"jackii",,"","C.K.Schneid.",Accepted,,H,WCSP,21399,,"Ill. Handb. Laubholzk.","1: 102","","1904",
tro-50270659,A,Betulaceae,,Betula,,"jackii",,"","C.K. Schneid.",Unresolved,,L,TRO,50270659,,"?","","","",
kew-21400,A,Betulaceae,,Betula,,"jacquemontii",,"","Spach",Synonym,,H,WCSP,21400,295114-1,"Ann. Sci. Nat., Bot.","II, 15: 189","","1841",kew-21793
kew-21401,A,Betulaceae,,Betula,,"jacquemontii",subsp.,"occidentalis","(Kitam.) Browicz",Synonym,,L,WCSP,21401,874737-1,"in Fl. Iran.","96: 5","","1972",kew-21797
kew-21402,A,Betulaceae,,Betula,,"jacutica",,"","V.N.Vassil.",Synonym,,H,WCSP,21402,107801-1,"Trudy Inst. For. Acad. Sci. URSS","37: 137","","1958",kew-21636
kew-21403,A,Betulaceae,,Betula,,"japonica",,"","Thunb.",Synonym,,H,WCSP,21403,30323474-2,"Nova Acta Regiae Soc. Sci. Upsal.","6: 45","","1799",kew-6471
kew-21404,A,Betulaceae,,Betula,,"japonica",,"","(Miq.) Siebold ex H.J.W.Winkl.",Synonym,Illegitimate,H,WCSP,21404,,"Pflanzenr.","IV, 61: 78","","1904",kew-342865
kew-21405,A,Betulaceae,,Betula,,"japonica",var.,"camtschatica","(Regel) H.J.P.Winkl.",Synonym,,L,WCSP,21405,,"Pflanzenr.","IV, 61: 79","","1904",kew-21604
kew-21406,A,Betulaceae,,Betula,,"japonica",var.,"mandshurica","(Regel) H.J.P.Winkl.",Synonym,,L,WCSP,21406,,"Pflanzenr.","IV, 61: 78","","1904",kew-342865
kew-21407,A,Betulaceae,,Betula,,"japonica",var.,"pluricostata","H.J.P.Winkl.",Synonym,,L,WCSP,21407,,"Pflanzenr.","IV, 61: 79","","1904",kew-342865
kew-21408,A,Betulaceae,,Betula,,"japonica",var.,"resinifera","(Regel) H.J.P.Winkl.",Synonym,,L,WCSP,21408,32150-2,"Pflanzenr.","IV, 61: 79","","1904",kew-21604
kew-21409,A,Betulaceae,,Betula,,"japonica",var.,"rockii","Rehder",Synonym,,L,WCSP,21409,,"J. Arnold Arbor.","9: 25","","1928",kew-21700
kew-342853,A,Betulaceae,,Betula,,"japonica",var.,"sachalinensis","Koidz.",Synonym,,L,WCSP,342853,,"Bot. Mag. (Tokyo)","27: 563","","1913",kew-342865
kew-21410,A,Betulaceae,,Betula,,"japonica",var.,"szechuanica","C.K.Schneid.",Synonym,,L,WCSP,21410,,"Ill. Handb. Laubholzk.","3: 44","","1917",kew-21751
kew-21411,A,Betulaceae,,Betula,,"japonica",var.,"tauschii","(Regel) H.J.P.Winkl.",Synonym,,L,WCSP,21411,,"Pflanzenr.","IV, 61: 78","","1904",kew-21604
kew-21412,A,Betulaceae,,Betula,,"jarmolenkoana",,"","Golosk.",Accepted,,H,WCSP,21412,107802-1,"Vestn. Akad. Nauk Kazakhsk. S.S.R.","2(131): 92","","1956",
kew-21413,A,Betulaceae,,Betula,,"jiaodongensis",,"","S.B.Liang",Accepted,,H,WCSP,21413,903690-1,"Bull. Bot. Res., Harbin","4(2): 155","","1984",
kew-464361,A,Betulaceae,,Betula,,"jinpingensis",,"","P.C.Li",Accepted,,H,WCSP,464361,107803-1,"Acta Phytotax. Sin.","17(1): 89","","1979",
kew-21415,A,Betulaceae,,Betula,,"jiulungensis",,"","P.C.Li ex Q.Lin",Accepted,,H,WCSP,21415,77083054-1,"Bull. Bot. Res., Harbin","27(3): 267","","2007",
kew-21416,A,Betulaceae,,Betula,,"kamtschatica",,"","H.Buek",Synonym,,H,WCSP,21416,295116-1,"Gen. Sp. Syn. Candoll.","4: 52","","1874",kew-21373
kew-21417,A,Betulaceae,,Betula,,"kamtschatica",,"","(Regel) C.-A.Jansson",Synonym,Illegitimate,H,WCSP,21417,107805-1,"Acta Horti Gothob.","25: 130","","1962",kew-21607
kew-330291,A,Betulaceae,,Betula,,"kamtschatica",var.,"kenaica","(W.H.Evans) C.-A.Jansson",Synonym,,L,WCSP,330291,32151-2,"Acta Horti Gothob.","25: 137","","1962",kew-21420
kew-21418,A,Betulaceae,,Betula,,"karagandensis",,"","V.N.Vassil.",Accepted,,H,WCSP,21418,107807-1,"Trudy Inst. Ekol. Rast.","69: 120","","1969",
kew-221337,A,Betulaceae,,Betula,×,"kateninii",,"","Tzvelev",Synonym,,H,WCSP,221337,50426224-2,"Novosti Sist. Vyssh. Rast.","34: 66","","2002",kew-21167
kew-21419,A,Betulaceae,,Betula,,"kelleriana",,"","Sukaczev",Synonym,,H,WCSP,21419,107808-1,"Izv. Imp. Akad. Nauk","8: 235","","1914",kew-21492
kew-21420,A,Betulaceae,,Betula,,"kenaica",,"","W.H.Evans",Accepted,,H,WCSP,21420,32152-2,"Bot. Gaz.","27: 481","","1899",
kew-342866,A,Betulaceae,,Betula,,"kenaica",var.,"japonica","(Miq.) Lindq.",Synonym,,L,WCSP,342866,,"Svensk Bot. Tidskr.","41: 75","","1947",kew-342865
kew-21421,A,Betulaceae,,Betula,,"kirghisorum",,"","Sawicz",Accepted,,H,WCSP,21421,107809-1,"Vestn. Tiflissk. Bot. Sada","25: 11","","1912",
kew-21422,A,Betulaceae,,Betula,,"klokovii",,"","Zaver.",Accepted,,H,WCSP,21422,107810-1,"Ukrayins'k. Bot. Zhurn.","21(5): 80","","1964",
kew-21423,A,Betulaceae,,Betula,×,"koehnei",,"","C.K.Schneid.",Unresolved,,L,WCSP,21423,,"Handb. Laubholzk.","1: 114","","1904",
kew-21424,A,Betulaceae,,Betula,,"komarovii",,"","Perfil. & Kolesn.",Synonym,,H,WCSP,21424,,"Unknown","","","",kew-21280
kew-21425,A,Betulaceae,,Betula,,"korshinskyi",,"","Litv.",Accepted,,H,WCSP,21425,107811-1,"Trudy Bot. Muz. Imp. Akad. Nauk","12: 89","","1914",
kew-21426,A,Betulaceae,,Betula,,"kossogolica",,"","V.N.Vassil.",Synonym,,H,WCSP,21426,107812-1,"Bot. Mater. Gerb. Bot. Inst. Komarova Akad. Nauk S.S.S.R.","22: 84","","1963",kew-21582
kew-21427,A,Betulaceae,,Betula,,"kotulae",,"","Zaver.",Accepted,,H,WCSP,21427,107813-1,"Ukrayins'k. Bot. Zhurn.","21(5): 83","","1964",
kew-21428,A,Betulaceae,,Betula,,"krylovii",,"","G.V.Krylov",Synonym,,H,WCSP,21428,107814-1,"Bot. Zhurn. (Moscow & Leningrad)","39: 251","","1954",kew-21636
kew-21429,A,Betulaceae,,Betula,,"kunarensis",,"","Browicz",Accepted,,H,WCSP,21429,107815-1,"in Fl. Iran.","96: 2","","1972",
kew-21430,A,Betulaceae,,Betula,×,"kusmisscheffii",,"","(Regel) Sukaczev",Unresolved,,L,WCSP,21430,107816-1,"Izv. Imp. Akad. Nauk","8: 233","","1914",
kew-21431,A,Betulaceae,,Betula,,"kwangsiensis",,"","F.P.Metcalf",Synonym,,H,WCSP,21431,107817-1,"Lingnan Sci. J.","20: 216","","1942",kew-21394
kew-21432,A,Betulaceae,,Betula,,"kweichowensis",,"","Hu",Synonym,,H,WCSP,21432,107818-1,"Sinensia","3: 88","","1932",kew-21394
kew-21433,A,Betulaceae,,Betula,,"laciniata",,"","Ehrh.",Synonym,Illegitimate,H,WCSP,21433,295119-1,"Beitr. Naturk.","3: 22","","1788",kew-6364
kew-21434,A,Betulaceae,,Betula,,"laciniata",,"","Thunb.",Synonym,Illegitimate,H,WCSP,21434,295120-1,"Betula","10","","1807",kew-21636
kew-21435,A,Betulaceae,,Betula,,"laciniata",,"","Blom",Synonym,,H,WCSP,21435,,"Kongl. Vetensk. Acad. Nya Handl.","7: 156","","1786",kew-21636
kew-330292,A,Betulaceae,,Betula,,"laciniata",,"","Wahlenb.",Synonym,Illegitimate,H,WCSP,330292,,"Fl. Suec.","1: 164","","1824",kew-21582
kew-21436,A,Betulaceae,,Betula,,"laciniata",var.,"crispa","Rchb.",Synonym,,L,WCSP,21436,,"Ic. Fl. Germ.","13: 3 c, t. 627","","1850",kew-21582
kew-21437,A,Betulaceae,,Betula,×,"lagopina",,"","Hartm. ex Regel",Unresolved,,L,WCSP,21437,295121-1,"Prodr.","16(2): 173","","1868",
kew-21438,A,Betulaceae,,Betula,,"lanata",,"","(Regel) V.N.Vassil.",Accepted,,H,WCSP,21438,107819-1,"Bot. Zhurn. S.S.S.R.","27: 11","","1942",
kew-21439,A,Betulaceae,,Betula,,"lanulosa",,"","Michx.",Synonym,,H,WCSP,21439,295122-1,"Fl. Bor.-Amer.","2: 181","","1803",kew-21527
kew-21440,A,Betulaceae,,Betula,,"latifolia",,"","Andrz.",Unresolved,,L,WCSP,21440,107820-1,"Izv. Univ. Kiev","7: 140","","1862",
kew-21441,A,Betulaceae,,Betula,,"latifolia",,"","Tausch",Synonym,,H,WCSP,21441,295123-1,"Flora","21: 751","","1838",kew-21557
tro-3600649,A,Betulaceae,,Betula,,"latifolia",,"","Kom.",Synonym,,M,TRO,3600649,,"Trudy Imp. S.-Peterburgsk. Bot. Sada","22(1): 38–42","38","1904",kew-21604
kew-342855,A,Betulaceae,,Betula,,"latifolia",var.,"cuneifolia","Nakai",Synonym,,L,WCSP,342855,,"Bot. Mag. (Tokyo)","42: 17","","1928",kew-342865
kew-342872,A,Betulaceae,,Betula,,"latifolia",var.,"kamtschatica","(Regel) Makino & Nemoto",Synonym,,L,WCSP,342872,,"Fl. Japan","ed. 2: 184","","1931",kew-21607
kew-342856,A,Betulaceae,,Betula,,"latifolia",var.,"mandshurica","(Regel) Nakai",Synonym,,L,WCSP,342856,,"Rep. Veg. Kamik.","38","","1928",kew-342865
kew-342858,A,Betulaceae,,Betula,,"latifolia",var.,"pluricostata","(H.J.P.Winkl.) Makino & Nemoto",Synonym,,L,WCSP,342858,,"Fl. Japan","ed. 2: 184","","1931",kew-342865
kew-21442,A,Betulaceae,,Betula,,"lenta",,"","Du Roi",Synonym,,H,WCSP,21442,295124-1,"Harbk. Baumz.","1: 92","","1772",kew-21636
kew-21443,A,Betulaceae,,Betula,,"lenta",,"","L.",Accepted,,H,WCSP,21443,295125-1,"Sp. Pl.","983","","1753",
kew-21444,A,Betulaceae,,Betula,,"lenta",var.,"carpinifolia","Regel",Synonym,,L,WCSP,21444,,"Nouv. Mém. Soc. Imp. Naturalistes Moscou","13(2): 127","","1861",kew-21355
kew-386868,A,Betulaceae,,Betula,,"lenta",var.,"grossa","(Siebold & Zucc.) Regel",Synonym,,L,WCSP,386868,,"Nouv. Mém. Soc. Imp. Naturalistes Moscou","13(2): 127","","1861",kew-21355
kew-330293,A,Betulaceae,,Betula,,"lenta",var.,"humilis","(Marshall) Castigl.",Synonym,,L,WCSP,330293,32153-2,"Viagg. Stati Uniti","2: 207","","1790",kew-21443
kew-330294,A,Betulaceae,,Betula,,"lenta",f.,"laciniata","Rehder",Synonym,,L,WCSP,330294,32154-2,"Rhodora","9: 111","","1907",kew-21443
kew-21446,A,Betulaceae,,Betula,,"lenta",subsp.,"lenta","",Synonym,,L,WCSP,21446,,"Unknown","","","",kew-21443
tro-3600166,A,Betulaceae,,Betula,,"lenta",f.,"lenta","",Synonym,,L,TRO,3600166,,"","","","",kew-21443
kew-21447,A,Betulaceae,,Betula,,"lenta",var.,"lutea","Regel",Synonym,,L,WCSP,21447,32155-2,"Prodr.","16(2): 179","","1868",kew-21135
kew-330295,A,Betulaceae,,Betula,,"lenta",var.,"papyrifera","(Marshall) Castigl.",Synonym,,L,WCSP,330295,32156-2,"Viagg. Stati Uniti","2: 207","","1790",kew-21557
kew-21448,A,Betulaceae,,Betula,,"lenta",var.,"persicifolia","Dippel",Synonym,,L,WCSP,21448,,"Handb. Laubholzk.","2: 185","","1891",kew-21443
kew-330296,A,Betulaceae,,Betula,,"lenta",var.,"populifolia","(Marshall) Castigl.",Synonym,,L,WCSP,330296,32157-2,"Viagg. Stati Uniti","2: 207","","1790",kew-21620
kew-21449,A,Betulaceae,,Betula,,"lenta",var.,"uber","Ashe",Synonym,,L,WCSP,21449,32160-2,"Rhodora","20: 64","","1918",kew-21450
kew-21450,A,Betulaceae,,Betula,,"lenta",subsp.,"uber","(Ashe) A.E.Murray",Accepted,,L,WCSP,21450,920564-1,"Kalmia","12: 18","","1982",
kew-221338,A,Betulaceae,,Betula,,"lenta",f.,"uber","(Ashe) McAll. & Ashburner",Synonym,,L,WCSP,221338,60427189-2,"Bot. Mag.","21: 58","","2004",kew-21450
kew-21451,A,Betulaceae,,Betula,,"leptophylla",,"","Regel",Synonym,,H,WCSP,21451,295127-1,"Prodr.","16(2): 181","","1868",kew-6533
kew-21452,A,Betulaceae,,Betula,,"leptostachya",,"","Wall.",Synonym,Invalid,H,WCSP,21452,295128-1,"Numer. List","2799","","1831",kew-6533
kew-21453,A,Betulaceae,,Betula,,"liaotungensis",,"","A.I.Baranov",Synonym,,H,WCSP,21453,107821-1,"Ill. Fl. Lign. Pl. N. E. China","559","","1958",kew-21216
kew-21454,A,Betulaceae,,Betula,,"lipskyi",,"","V.N.Vassil.",Synonym,,H,WCSP,21454,107822-1,"Bot. Zhurn. (Moscow & Leningrad)","48: 905","","1963",kew-21626
kew-21455,A,Betulaceae,,Betula,,"littelliana",,"","Tucker",Synonym,,H,WCSP,21455,,"Amer. J. Sci. Arts","45: 30","","1843",kew-21505
kew-21456,A,Betulaceae,,Betula,,"litwinowii",,"","Doluch.",Accepted,,H,WCSP,21456,107823-1,"Zametki Sist. Geogr. Rast.","7: 14","","1939",
kew-21457,A,Betulaceae,,Betula,,"litwinowii",var.,"recurvata","I.V.Vassil.",Synonym,,L,WCSP,21457,,"Bot. Zhurn. (Moscow & Leningrad)","36: 617","","1951",kew-21456
kew-21458,A,Betulaceae,,Betula,,"lobulata",,"","Kit.",Synonym,,H,WCSP,21458,295130-1,"Linnaea","32: 351","","1864",kew-21582
kew-21459,A,Betulaceae,,Betula,,"longifolia",,"","Bové ex Spach",Synonym,,H,WCSP,21459,295131-1,"Ann. Sci. Nat., Bot.","II, 15: 208","","1841",kew-6551
kew-21460,A,Betulaceae,,Betula,,"longilobata",,"","Sipliv.",Synonym,,H,WCSP,21460,107824-1,"Novosti Sist. Vyssh. Rast.","3: 278","","1966",kew-21438
kew-342208,A,Betulaceae,,Betula,,"lucida",,"","Courtois",Synonym,,H,WCSP,342208,,"Rev. Fl. Spa","252","","1824",kew-21636
kew-21461,A,Betulaceae,,Betula,,"ludmilae",,"","V.N.Vassil.",Synonym,,H,WCSP,21461,107825-1,"Bot. Mater. Gerb. Bot. Inst. Komarova Akad. Nauk S.S.S.R.","22: 89","","1963",kew-21582
kew-21462,A,Betulaceae,,Betula,,"luminifera",,"","H.J.P.Winkl.",Accepted,,H,WCSP,21462,,"Pflanzenr.","IV, 61: 91","","1904",
kew-21463,A,Betulaceae,,Betula,,"luminifera",var.,"baeumkeri","(H.J.P.Winkl.) P.C.Kuo",Synonym,,L,WCSP,21463,874738-1,"in Fl. Tsinlingensis","1(2): 56","","1974",kew-21462
kew-456512,A,Betulaceae,,Betula,,"luminifera",f.,"pachystachya","X.M.Liu",Synonym,,L,WCSP,456512,77096784-1,"J. Anhui Agric. Coll.","14: 12","","1987",kew-21462
kew-21464,A,Betulaceae,,Betula,,"lutea",,"","F.Michx.",Synonym,Illegitimate,H,WCSP,21464,,"Hist. Arbr. Forest.","2: 152","","1811",kew-21135
kew-330297,A,Betulaceae,,Betula,,"lutea",var.,"alleghaniensis","(Britton) Rehder",Synonym,,L,WCSP,330297,32163-2,"Bibl. Cult. Trees","96","","1949",kew-21135
kew-21465,A,Betulaceae,,Betula,,"lutea",f.,"fallax","Fassett",Synonym,,L,WCSP,21465,32164-2,"Rhodora","34: 95","","1932",kew-21135
kew-21467,A,Betulaceae,,Betula,,"lutea",f.,"macrolepis","(Fernald) Fernald",Synonym,,L,WCSP,21467,,"Rhodora","34: 95","","1932",kew-21135
kew-330298,A,Betulaceae,,Betula,,"lutea",var.,"macrolepis","Fernald",Synonym,,L,WCSP,330298,32166-2,"Rhodora","27: 170","","1922",kew-21135
kew-330299,A,Betulaceae,,Betula,,"lutea",var.,"persicifolia","Dippel",Synonym,,L,WCSP,330299,32167-2,"Handb. Laubholzk.","2: 185","","1892",kew-21135
kew-343071,A,Betulaceae,,Betula,,"lyalliana",,"","(Koehne) Bean",Synonym,,H,WCSP,343071,,"Trees Shrubs Brit. Isl.","258","","1914",kew-21557
kew-21469,A,Betulaceae,,Betula,,"maackii",,"","Rupr.",Synonym,,H,WCSP,21469,295134-1,"Bull. Cl. Phys.-Math. Acad. Imp. Sci. Saint-Pétersbourg","15: 380","","1857",kew-21251
kew-21470,A,Betulaceae,,Betula,,"maarensis",,"","V.N.Vassil. & Husseinova",Synonym,,H,WCSP,21470,,"Novosti Sist. Vyssh. Rast.","8: 129","","1971",kew-21688
kew-21471,A,Betulaceae,,Betula,,"macrostachya",,"","Schrad. ex Regel",Synonym,,H,WCSP,21471,,"Prodr.","16: 187","","1869",kew-21636
kew-21472,A,Betulaceae,,Betula,,"major",,"","Gilib.",Synonym,Invalid,H,WCSP,21472,295136-1,"Exerc. Phyt.","2: 400","","1792",kew-21636
kew-21473,A,Betulaceae,,Betula,,"mandshurica",,"","(Regel) Nakai",Synonym,,H,WCSP,21473,107827-1,"Bot. Mag. (Tokyo)","29: 42","","1915",kew-342865
kew-21474,A,Betulaceae,,Betula,,"mandshurica",var.,"japonica","(Miq.) Rehder",Synonym,,L,WCSP,21474,,"Man. Cult. Trees","ed. 2: 130","","1940",kew-342865
kew-21475,A,Betulaceae,,Betula,,"mandshurica",var.,"kamtschatica","(Regel) Rehder",Synonym,,L,WCSP,21475,,"J. Arnold Arbor.","19: 73","","1938",kew-21607
kew-452494,A,Betulaceae,,Betula,,"mandshurica",var.,"rockii","(Rehder) Rehder",Synonym,,L,WCSP,452494,,"J. Arnold Arbor.","19: 74","","1938",kew-21700
kew-21477,A,Betulaceae,,Betula,,"mandshurica",var.,"szechuanica","(C.K.Schneid.) Rehder",Synonym,,L,WCSP,21477,,"Man. Cult. Trees","ed. 2: 130","","1940",kew-21751
kew-21478,A,Betulaceae,,Betula,,"margusarica",,"","V.N.Vassil.",Accepted,,H,WCSP,21478,107828-1,"Bot. Zhurn. (Moscow & Leningrad)","48: 904","","1963",
kew-21479,A,Betulaceae,,Betula,,"maximowicziana",,"","Regel",Accepted,,H,WCSP,21479,295137-1,"Prodr.","16(2): 180","","1868",
kew-21480,A,Betulaceae,,Betula,,"maximowiczii",,"","Regel",Synonym,Illegitimate,H,WCSP,21480,295138-1,"Bull. Soc. Imp. Naturalistes Moscou","38(2): 418","","1865",kew-21479
kew-21481,A,Betulaceae,,Betula,,"maximowiczii",,"","Rupr.",Synonym,,H,WCSP,21481,295139-1,"Bull. Cl. Phys.-Math. Acad. Imp. Sci. Saint-Pétersbourg","15: 139","","1856",kew-21251
tro-50271312,A,Betulaceae,,Betula,,"media",,"","Laest.",Unresolved,,L,TRO,50271312,,"Bot. Not.","1856: 107","107","1857",
tro-50270691,A,Betulaceae,,Betula,,"medwedieaii",,"","Regel",Unresolved,,L,TRO,50270691,,"Gartenflora","36: 383","383","1887",
kew-21484,A,Betulaceae,,Betula,,"medwediewii",,"","Regel",Accepted,,H,WCSP,21484,295142-1,"Gartenflora","36: 383","","1887",
tro-50271313,A,Betulaceae,,Betula,,"megalocarpa",,"","Laest.",Unresolved,,L,TRO,50271313,,"Bot. Not.","1857: 106","106","1857",
kew-21486,A,Betulaceae,,Betula,,"megaloptera",,"","Kindb.",Synonym,,H,WCSP,21486,107829-1,"Bot. Not.","1909: 119","","1909",kew-21649
kew-21487,A,Betulaceae,,Betula,,"megrelica",,"","Sosn.",Accepted,,H,WCSP,21487,107830-1,"Trudy Tbilissk. Bot. Inst.","1: 42","","1934",
kew-21488,A,Betulaceae,,Betula,,"michauxii",,"","Spach",Accepted,,H,WCSP,21488,295144-1,"Ann. Sci. Nat., Bot.","II, 15: 195","","1841",
kew-21489,A,Betulaceae,,Betula,,"microdontia",,"","Kindb.",Synonym,,H,WCSP,21489,107831-1,"Bot. Not.","1909: 119","","1909",kew-21649
kew-21490,A,Betulaceae,,Betula,,"microlepis",,"","I.V.Vassil.",Synonym,,H,WCSP,21490,107832-1,"Bot. Mater. Gerb. Bot. Inst. Komarova Akad. Nauk S.S.S.R.","21: 97","","1961",kew-21582
kew-21491,A,Betulaceae,,Betula,,"microlepis",var.,"moldavica","Osadchii",Synonym,,L,WCSP,21491,,"Izv. Akad. Nauk Moldavsk. S.S.R., Ser. Biol. Khim. Nauk","1973(6): 11","","1973",kew-21582
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
kew-21494,A,Betulaceae,,Betula,,"middendorffii",,"","Trautv. & C.A.Mey.",Synonym,,H,WCSP,21494,,"Fl. Ochot.","84","","1856",kew-21272
kew-386862,A,Betulaceae,,Betula,,"middendorffii",var.,"communis","Trautv. ex Regel",Synonym,,L,WCSP,386862,,"Nouv. Mém. Soc. Imp. Naturalistes Moscou","13(2): 99","","1861",kew-21272
kew-386864,A,Betulaceae,,Betula,,"middendorffii",var.,"globosa","Regel",Synonym,,L,WCSP,386864,,"Nouv. Mém. Soc. Imp. Naturalistes Moscou","13(2): 99","","1861",kew-21272
kew-386863,A,Betulaceae,,Betula,,"middendorffii",var.,"nitida","Regel",Synonym,,L,WCSP,386863,,"Nouv. Mém. Soc. Imp. Naturalistes Moscou","13(2): 99","","1861",kew-21272
kew-21495,A,Betulaceae,,Betula,,"minor",,"","(Tuck.) Fernald",Accepted,,H,WCSP,21495,32171-2,"Rhodora","47: 306","","1945",
tro-3600461,A,Betulaceae,,Betula,,"minor",,"","Auth.",Synonym,,M,TRO,3600461,,"","","","",kew-21275
kew-21496,A,Betulaceae,,Betula,,"miyoshii",,"","Nakai",Synonym,Invalid,H,WCSP,21496,,"Veg. Apoi","34, 46","","1930",kew-21161
kew-21497,A,Betulaceae,,Betula,,"mongolica",,"","V.N.Vassil.",Synonym,,H,WCSP,21497,107835-1,"Bot. Mater. Gerb. Bot. Inst. Komarova Akad. Nauk S.S.S.R.","19: 92","","1959",kew-21582
kew-21498,A,Betulaceae,,Betula,,"montana",,"","V.N.Vassil.",Synonym,,H,WCSP,21498,107836-1,"Spisok Rast. Gerb. Fl. S.S.S.R. Bot. Inst. Vsesoyuzn. Akad. Nauk","11: 99","","1949",kew-21582
kew-21499,A,Betulaceae,,Betula,,"montanensis",,"","Rydb. ex B.T.Butler",Synonym,,H,WCSP,21499,32172-2,"Bull. Torrey Bot. Club","36: 438","","1909",kew-21557
kew-21500,A,Betulaceae,,Betula,,"murgabica",,"","V.N.Vassil.",Accepted,,H,WCSP,21500,107838-1,"Bot. Zhurn. (Moscow & Leningrad)","48: 904","","1963",
kew-21501,A,Betulaceae,,Betula,,"murithii",,"","Gaudin ex Regel",Synonym,,H,WCSP,21501,295147-1,"Prodr.","16(2): 168","","1868",kew-21649
kew-21502,A,Betulaceae,,Betula,×,"murrayana",,"","B.V.Barnes & Dancik",Accepted,,H,WCSP,21502,273246-2,"Canad. J. Bot.","63: 226","","1985",
kew-21503,A,Betulaceae,,Betula,,"myrsinoides",,"","Tausch",Synonym,,H,WCSP,21503,,"Flora","11: 753","","1828",kew-21373
kew-21504,A,Betulaceae,,Betula,,"nakaiana",,"","Tatew. & Hurus.",Unresolved,,L,WCSP,21504,107839-1,"J. Jap. Bot.","26: 85","","1951",
kew-21505,A,Betulaceae,,Betula,,"nana",,"","L.",Accepted,,H,WCSP,21505,301322-2,"Sp. Pl.","983","","1753",
kew-21506,A,Betulaceae,,Betula,,"nana",var.,"alpestris","(Fr.) Regel",Synonym,,L,WCSP,21506,,"Nouv. Mém. Soc. Imp. Naturalistes Moscou","13(2): 103","","1861",kew-21150
kew-386865,A,Betulaceae,,Betula,,"nana",var.,"borealis","Regel",Synonym,,L,WCSP,386865,,"Nouv. Mém. Soc. Imp. Naturalistes Moscou","13(2): 104","","1861",kew-21505
kew-21507,A,Betulaceae,,Betula,,"nana",var.,"europaea","Ledeb.",Synonym,,L,WCSP,21507,,"Fl. Ross.","3: 653","","1850",kew-21505
kew-21508,A,Betulaceae,,Betula,,"nana",subsp.,"exilis","(Sukaczev) Hultén",Accepted,,L,WCSP,21508,32173-2,"Acta Univ. Lund.","n.f., 40(1): 579","","1944",
kew-21510,A,Betulaceae,,Betula,,"nana",var.,"flabellifolia","Hook.",Synonym,,L,WCSP,21510,32174-2,"Fl. Bor.-Amer.","2: 157","","1838",kew-21505
kew-21512,A,Betulaceae,,Betula,,"nana",var.,"glandulifera","(Regel) B.Boivin",Synonym,,L,WCSP,21512,32175-2,"Naturaliste Canad.","94: 231","","1967",kew-21671
kew-21513,A,Betulaceae,,Betula,,"nana",var.,"intermedia","Hartm.",Unresolved,,L,WCSP,21513,,"Kongl. Vetensk. Acad. Handl.","148","","1818",kew-21101
kew-21514,A,Betulaceae,,Betula,,"nana",var.,"intermedia","Regel",Synonym,Illegitimate,L,WCSP,21514,,"Nouv. Mém. Soc. Imp. Naturalistes Moscou","13(2): 102","","1861",kew-21505
kew-469161,A,Betulaceae,,Betula,,"nana",var.,"macrophylla","Kindb.",Synonym,,L,WCSP,469161,,"Bot. Not.","1909: 116","","1909",kew-21505
kew-330303,A,Betulaceae,,Betula,,"nana",f.,"magnifolia","Hartz",Synonym,,L,WCSP,330303,32177-2,"Meddel. Grønland","18: 342","","1895",kew-21505
kew-21515,A,Betulaceae,,Betula,,"nana",var.,"michauxii","(Spach) Regel",Synonym,,L,WCSP,21515,,"Nouv. Mém. Soc. Imp. Naturalistes Moscou","13(2): 103","","1861",kew-21488
kew-21516,A,Betulaceae,,Betula,,"nana",subsp.,"nana","",Synonym,,L,WCSP,21516,,"Unknown","","","",kew-21505
kew-21517,A,Betulaceae,,Betula,,"nana",subsp.,"perfiljevii","(V.N.Vassil.) Á.Löve & D.Löve",Synonym,,L,WCSP,21517,874740-1,"Bot. Not.","128: 505","","1975 publ. 1976",kew-21508
kew-330304,A,Betulaceae,,Betula,,"nana",var.,"reducta","Hultén",Synonym,,L,WCSP,330304,32178-2,"Acta Univ. Lund.","n.s., 40(1): 581","","1944",kew-21505
kew-330305,A,Betulaceae,,Betula,,"nana",f.,"reducta","(Hultén) B.Boivin",Synonym,,L,WCSP,330305,32179-2,"Naturaliste Canad.","94: 631","","1967",kew-21505
kew-21518,A,Betulaceae,,Betula,,"nana",var.,"relicta","Th.Fr. ex Gürke",Synonym,,L,WCSP,21518,,"Pl. Eur.","2: 50","","1897",kew-21505
kew-340840,A,Betulaceae,,Betula,,"nana",subsp.,"relicta","(Th.Fr. ex Gürke) Nyman",Synonym,,L,WCSP,340840,,"Consp. Fl. Eur.","673","","1881",kew-21505
kew-21519,A,Betulaceae,,Betula,,"nana",var.,"renifolia","(Fernald) B.Boivin",Synonym,,L,WCSP,21519,32180-2,"Naturaliste Canad.","94: 231","","1967",kew-21671
kew-21520,A,Betulaceae,,Betula,,"nana",subsp.,"rotundifolia","(Spach) Malyschev",Accepted,,L,WCSP,21520,,"Vysokogom. Fl. Vost. Sayan","110","","1965",
kew-21521,A,Betulaceae,,Betula,,"nana",var.,"sibirica","Ledeb.",Synonym,,L,WCSP,21521,,"Fl. Ross.","3: 654","","1850",kew-21508
kew-21522,A,Betulaceae,,Betula,,"nana",subsp.,"tundrarum","(Perfil.) Á.Löve & D.Löve",Synonym,,L,WCSP,21522,874741-1,"Bot. Not.","128: 505","","1975 publ. 1976",kew-21505
kew-21523,A,Betulaceae,,Betula,,"naniformis",,"","Lindb. ex Kindb.",Synonym,,H,WCSP,21523,107840-1,"Bot. Not.","1909: 120","","1909",kew-21505
kew-21524,A,Betulaceae,,Betula,,"neoalaskana",,"","Sarg.",Accepted,,H,WCSP,21524,32182-2,"J. Arnold Arbor.","3: 206","","1922",
kew-21525,A,Betulaceae,,Betula,,"neoalaskana",var.,"kenaica","(W.H.Evans) B.Boivin",Synonym,,L,WCSP,21525,32183-2,"Naturaliste Canad.","94: 230","","1967",kew-21420
kew-21526,A,Betulaceae,,Betula,,"neoborealis",,"","Lepage",Synonym,,H,WCSP,21526,324790-2,"Naturaliste Canad.","84: 56","","1957",kew-21671
kew-21527,A,Betulaceae,,Betula,,"nigra",,"","L.",Accepted,,H,WCSP,21527,295155-1,"Sp. Pl.","982","","1753",
kew-386867,A,Betulaceae,,Betula,,"nigra",var.,"parvifolia","Regel",Synonym,,L,WCSP,386867,,"Nouv. Mém. Soc. Imp. Naturalistes Moscou","13(2): 120","","1861",kew-21527
kew-21528,A,Betulaceae,,Betula,,"nigricans",,"","Wender.",Synonym,,H,WCSP,21528,295156-1,"Bot. Zeitung (Berlin)","4: 291","","1846",kew-21636
kew-21529,A,Betulaceae,,Betula,,"niijimae",,"","Nakai",Synonym,Invalid,H,WCSP,21529,107843-1,"Veg. Apoi","34, 46","","1930",kew-21161
kew-21530,A,Betulaceae,,Betula,,"nikoensis",,"","Koidz.",Synonym,,H,WCSP,21530,107844-1,"Bot. Mag. (Tokyo)","27: 149","","1913",kew-21287
kew-21531,A,Betulaceae,,Betula,,"nitida",,"","D.Don",Synonym,,H,WCSP,21531,295157-1,"Prodr. Fl. Nepal.","58","","1825",kew-21139
kew-386869,A,Betulaceae,,Betula,,"nitida",var.,"affinis","(Spach) Regel",Synonym,,L,WCSP,386869,,"Nouv. Mém. Soc. Imp. Naturalistes Moscou","13(2): 130","","1861",kew-21139
kew-21532,A,Betulaceae,,Betula,,"oblongata",,"","Aiton",Synonym,,H,WCSP,21532,,"Hortus Kew.","3: 338","","1789",kew-6598
kew-21533,A,Betulaceae,,Betula,,"obovata",,"","E.J.Butler",Synonym,,H,WCSP,21533,,"Bull. Torrey Bot. Club","36: 427","","1909",kew-21535
kew-21534,A,Betulaceae,,Betula,×,"obscura",,"","Kotula ex Fiek",Synonym,,H,WCSP,21534,77089506-1,"Jahresber. Schles. Ges. Vaterl. Cult.","65: 314","","1888",kew-21167
tro-3600295,A,Betulaceae,,Betula,,"obscura",,"","Kotula",Accepted,,M,TRO,3600295,,"","","","",
kew-21535,A,Betulaceae,,Betula,,"occidentalis",,"","Hook.",Accepted,,H,WCSP,21535,295159-1,"Fl. Bor.-Amer.","2: 155","","1838",
kew-21536,A,Betulaceae,,Betula,,"occidentalis",var.,"fecunda","Fernald",Synonym,,L,WCSP,21536,32187-2,"Rhodora","47: 317","","1945",kew-21790
kew-21537,A,Betulaceae,,Betula,,"occidentalis",subsp.,"fecunda","(Fernald) A.E.Murray",Synonym,,L,WCSP,21537,920565-1,"Kalmia","12: 18","","1982",kew-21790
kew-21538,A,Betulaceae,,Betula,,"occidentalis",f.,"inopina","Jeps.",Synonym,,L,WCSP,21538,32188-2,"Fl. Calif.","1: 349","","1909",kew-21535
kew-21539,A,Betulaceae,,Betula,,"occidentalis",subsp.,"inopina","(Jeps.) A.E.Murray",Synonym,,L,WCSP,21539,32190-2,"Kalmia","13: 3","","1983",kew-21535
kew-330306,A,Betulaceae,,Betula,,"occidentalis",var.,"inopina","(Jeps.) C.L.Hitchc.",Synonym,,L,WCSP,330306,32189-2,"Vasc. Pl. Pacific Northw.","2: 78","","1964",kew-21535
tro-3600113,A,Betulaceae,,Betula,,"occidentalis",var.,"occidentalis","",Synonym,,L,TRO,3600113,,"","","","",kew-21535
kew-21541,A,Betulaceae,,Betula,,"odorata",,"","Bechst.",Synonym,,H,WCSP,21541,,"Arch. Bot. (Leipzig)","2: 73","","1799",kew-21649
kew-330307,A,Betulaceae,,Betula,,"odorata",var.,"alpestris","(Fr.) Rosenv.",Synonym,,L,WCSP,330307,32191-2,"Meddel. Grønland","3: 708","","1892",kew-21150
kew-21542,A,Betulaceae,,Betula,,"odorata",var.,"alpigena","Blytt",Synonym,,L,WCSP,21542,,"Haandb. Norges Fl.","402","","1874",kew-21636
kew-469162,A,Betulaceae,,Betula,,"odorata",f.,"incisa","Kindb.",Synonym,,L,WCSP,469162,,"Bot. Not.","1909: 116","","1909",kew-21649
kew-469163,A,Betulaceae,,Betula,,"odorata",subsp.,"integrifolia","Larss. ex Kindb.",Synonym,,L,WCSP,469163,,"Bot. Not.","1909: 116","","1909",kew-21649
kew-330308,A,Betulaceae,,Betula,,"odorata",var.,"tortuosa","(Ledeb.) Rosenv.",Synonym,,L,WCSP,330308,32192-2,"Meddel. Grønland","3: 707","","1892",kew-21659
kew-21543,A,Betulaceae,,Betula,,"ovalifolia",,"","Rupr.",Accepted,,H,WCSP,21543,295161-1,"Bull. Cl. Phys.-Math. Acad. Imp. Sci. Saint-Pétersbourg","15: 378","","1857",
kew-21544,A,Betulaceae,,Betula,,"ovata",,"","K.Koch",Synonym,,H,WCSP,21544,295162-1,"Linnaea","22: 333","","1849",kew-21636
kew-21545,A,Betulaceae,,Betula,,"ovata",,"","Schrank",Synonym,,H,WCSP,21545,295163-1,"Baier. Fl.","1: 419","","1789",kew-6257
kew-21546,A,Betulaceae,,Betula,,"ovczinnikovii",,"","V.N.Vassil.",Accepted,,H,WCSP,21546,107847-1,"Bot. Zhurn. (Moscow & Leningrad)","48: 903","","1963",
tro-50271684,A,Betulaceae,,Betula,,"oxytzowiensis",,"","Dippel",Unresolved,,L,TRO,50271684,295164-1,"Handb. Laubholzk.","2: 167","167","1891",
kew-21548,A,Betulaceae,,Betula,,"oycowiensis",,"","Besser",Synonym,,H,WCSP,21548,295165-1,"Prim. Fl. Galiciae Austriac.","2: 289","","1809",kew-21593
kew-21549,A,Betulaceae,,Betula,,"oycowiensis",,"","Rchb.",Synonym,Illegitimate,H,WCSP,21549,295166-1,"Icon. Fl. Germ. Helv.","12: t. 622, f. 1281","","1850",kew-21373
kew-469168,A,Betulaceae,,Betula,,"oycowiensis",var.,"majuscula","Kindb.",Synonym,,L,WCSP,469168,,"Bot. Not.","1909: 120","","1909",kew-21593
kew-21550,A,Betulaceae,,Betula,,"paishanensis",,"","Nakai",Synonym,,H,WCSP,21550,107849-1,"Bot. Mag. (Tokyo)","33: 5","","1919",kew-21543
kew-469172,A,Betulaceae,,Betula,×,"pallescens",,"","Larss. ex Kindb.",Unresolved,,L,WCSP,469172,,"Bot. Not.","1909: 121","","1909",
kew-21551,A,Betulaceae,,Betula,,"palmata",,"","Borkh.",Synonym,,H,WCSP,21551,295169-1,"Theor. Prakt. Handb. Forstbot.","1: 500","","1800",kew-21582
kew-330309,A,Betulaceae,,Betula,,"palmata",var.,"bircalensis","(Mela) Tzvelev",Synonym,,L,WCSP,330309,77068786-1,"in Fl. Vostoch. Evropy","11: 75","","2004",kew-21582
kew-330310,A,Betulaceae,,Betula,,"palmata",var.,"crispa","(Rchb.) Tzvelev",Synonym,,L,WCSP,330310,77068784-1,"in Fl. Vostoch. Evropy","11: 75","","2004",kew-21582
kew-221339,A,Betulaceae,,Betula,,"palmata",var.,"lobulata","(C.Andersson) Tzvelev",Synonym,,L,WCSP,221339,50426218-2,"Novosti Sist. Vyssh. Rast.","34: 58","","2002",kew-21582
tro-50271314,A,Betulaceae,,Betula,,"palmiformis",,"","Laest.",Unresolved,,L,TRO,50271314,,"Bot. Not.","1856: 105","105","1857",
kew-21553,A,Betulaceae,,Betula,,"palustris",,"","Salisb.",Synonym,Illegitimate,H,WCSP,21553,295170-1,"Prodr. Stirp. Chap. Allerton","395","","1796",kew-6417
kew-21554,A,Betulaceae,,Betula,,"palustris",,"","Rupr.",Synonym,Illegitimate,H,WCSP,21554,295171-1,"Bull. Cl. Phys.-Math. Acad. Imp. Sci. Saint-Pétersbourg","15: 376","","1857",kew-21373
kew-21555,A,Betulaceae,,Betula,,"pamirica",,"","Litv.",Accepted,,H,WCSP,21555,107850-1,"Trudy Bot. Muz. Imp. Akad. Nauk","12: 91","","1914",
kew-21556,A,Betulaceae,,Betula,,"papyracea",,"","Aiton",Synonym,,H,WCSP,21556,,"Hortus Kew.","3: 337","","1789",kew-21557
kew-386838,A,Betulaceae,,Betula,,"papyracea",var.,"communis","(Regel) Schelle",Synonym,,L,WCSP,386838,,"Handb. Laubholzben.","55","","1903",kew-21557
kew-386839,A,Betulaceae,,Betula,,"papyracea",var.,"cordifolia","(Regel) Dippel",Synonym,,L,WCSP,386839,32194-2,"Handb. Laubholzk.","2: 177","","1892",kew-21560
tro-100153599,A,Betulaceae,,Betula,,"papyracea",var.,"cordifolia","(Regel) Schelle",Synonym,,L,TRO,100153599,32193-2,"Handb. Laubholzben.","55","55","1903",kew-21560
kew-330311,A,Betulaceae,,Betula,,"papyracea",var.,"grandis","(Schrad.) Schelle",Synonym,,L,WCSP,330311,,"Handb. Laubholzben.","55","","1903",kew-21557
kew-386840,A,Betulaceae,,Betula,,"papyracea",var.,"lyalliana","(Koehne) Schelle",Synonym,,L,WCSP,386840,,"Handb. Laubholzben.","55","","1903",kew-21557
kew-21569,A,Betulaceae,,Betula,,"papyracea",var.,"minor","Tuck.",Synonym,,L,WCSP,21569,32195-2,"Amer. J. Sci. Arts","45: 31","","1843",kew-21495
kew-330313,A,Betulaceae,,Betula,,"papyracea",var.,"occidentalis","(Hook.) Dippel",Synonym,,L,WCSP,330313,32196-2,"Handb. Laubholzk.","2: 177","","1892",kew-21535
kew-21557,A,Betulaceae,,Betula,,"papyrifera",,"","Marshall",Accepted,,H,WCSP,21557,32197-2,"Arbust. Amer.","19","","1785",
kew-330314,A,Betulaceae,,Betula,,"papyrifera",var.,"andrewsii","Daniels",Synonym,,L,WCSP,330314,32198-2,"Fl. Boulder Colorado","101","","1911",kew-21557
kew-330315,A,Betulaceae,,Betula,,"papyrifera",var.,"communis","Regel",Synonym,,L,WCSP,330315,32199-2,"Handb. Laubholzben.","1: 115","","1904",kew-21557
kew-21558,A,Betulaceae,,Betula,,"papyrifera",var.,"commutata","(Regel) Fernald",Synonym,,L,WCSP,21558,32201-2,"Rhodora","47: 312","","1945",kew-21557
kew-21559,A,Betulaceae,,Betula,,"papyrifera",subsp.,"commutata","(Regel) A.E.Murray",Synonym,,L,WCSP,21559,32200-2,"Kalmia","12: 18","","1982",kew-21557
kew-21560,A,Betulaceae,,Betula,,"papyrifera",var.,"cordifolia","(Regel) Regel",Accepted,,L,WCSP,21560,,"Bull. Soc. Imp. Naturalistes Moscou","38(2): 401","","1865",
kew-21562,A,Betulaceae,,Betula,,"papyrifera",subsp.,"cordifolia","(Regel) A.E.Murray",Synonym,,L,WCSP,21562,32202-2,"Kalmia","12: 18","","1982",kew-21560
kew-330316,A,Betulaceae,,Betula,,"papyrifera",f.,"cordifolia","(Regel) C.K.Schneid.",Synonym,,L,WCSP,330316,293132-2,"Handb. Laubholzben.","1: 115","","1904",kew-21560
tro-3600069,A,Betulaceae,,Betula,,"papyrifera",var.,"cordifolia","(Regel) Fernald",Synonym,,L,TRO,3600069,,"Rhodora","3: 173","173","1901",kew-21560
kew-330317,A,Betulaceae,,Betula,,"papyrifera",f.,"coriacea","Fernald & Wiegand",Synonym,,L,WCSP,330317,32204-2,"Rhodora","25: 209","","1923",kew-21557
kew-21563,A,Betulaceae,,Betula,,"papyrifera",var.,"elobata","(Fernald) Sarg.",Synonym,,L,WCSP,21563,32206-2,"J. Arnold Arbor.","1: 63","","1919",kew-21557
kew-330319,A,Betulaceae,,Betula,,"papyrifera",f.,"elobata","(Fernald) B.Boivin",Synonym,,L,WCSP,330319,32205-2,"Naturaliste Canad.","94: 231","","1967",kew-21557
kew-21564,A,Betulaceae,,Betula,,"papyrifera",var.,"humilis","(Regel) Fernald & Raup",Synonym,,L,WCSP,21564,32208-2,"Rhodora","47: 321","","1945",kew-21524
kew-21565,A,Betulaceae,,Betula,,"papyrifera",subsp.,"humilis","(Regel) A.E.Murray",Synonym,,L,WCSP,21565,32207-2,"Kalmia","12: 18","","1982",kew-21524
tro-3600107,A,Betulaceae,,Betula,,"papyrifera",subsp.,"humilis","(Regel) Hultén",Synonym,,L,TRO,3600107,,"Fl. Alaska","367","367","1968",kew-21524
kew-21566,A,Betulaceae,,Betula,,"papyrifera",var.,"kenaica","(W.H.Evans) A.Henry",Synonym,,L,WCSP,21566,32210-2,"Trees Great Britain","4: 984","","1909",kew-21420
kew-21567,A,Betulaceae,,Betula,,"papyrifera",subsp.,"kenaica","(W.H.Evans) A.E.Murray",Synonym,,L,WCSP,21567,32209-2,"Kalmia","12: 18","","1982",kew-21420
kew-330320,A,Betulaceae,,Betula,,"papyrifera",f.,"longipes","Fernald",Synonym,,L,WCSP,330320,302011-2,"Rhodora","47: 319","","1945",kew-21557
kew-21468,A,Betulaceae,,Betula,,"papyrifera",var.,"lyalliana","Koehne",Synonym,,L,WCSP,21468,,"Handb. Laubholzben.","55","","1903",kew-21557
kew-21568,A,Betulaceae,,Betula,,"papyrifera",var.,"macrostachya","Fernald",Synonym,,L,WCSP,21568,32211-2,"Rhodora","47: 318","","1945",kew-21557
tro-50270703,A,Betulaceae,,Betula,,"papyrifera",var.,"minor","Tuck.",Synonym,,L,TRO,50270703,,"Amer. J. Sci. Arts","45: 31","31","1843",kew-21495
kew-330321,A,Betulaceae,,Betula,,"papyrifera",var.,"montanensis","(Rydb. ex B.T.Butler) Sarg.",Synonym,,L,WCSP,330321,32213-2,"J. Arnold Arbor.","1: 64","","1919",kew-21557
kew-330322,A,Betulaceae,,Betula,,"papyrifera",f.,"nana","B.Boivin",Synonym,,L,WCSP,330322,32214-2,"Naturaliste Canad.","94: 231","","1967",kew-21557
kew-21570,A,Betulaceae,,Betula,,"papyrifera",var.,"neoalaskana","(Sarg.) Raup",Synonym,,L,WCSP,21570,32215-2,"Contr. Arnold Arbor.","6: 152","","1934",kew-21524
kew-21571,A,Betulaceae,,Betula,,"papyrifera",subsp.,"neoalaskana","(Sarg.) A.E.Murray",Synonym,,L,WCSP,21571,32216-2,"Kalmia","13: 4","","1983",kew-21524
kew-21572,A,Betulaceae,,Betula,,"papyrifera",subsp.,"occidentalis","(Hook.) Hultén",Synonym,,L,WCSP,21572,32217-2,"Acta Univ. Lund.","n.s., 40(1): 582","","1944",kew-21535
kew-21573,A,Betulaceae,,Betula,,"papyrifera",var.,"occidentalis","(Hook.) Sarg.",Synonym,,L,WCSP,21573,32218-2,"J. Arnold Arbor.","1: 63","","1919",kew-21535
kew-21574,A,Betulaceae,,Betula,,"papyrifera",var.,"papyrifera","",Synonym,,L,WCSP,21574,,"Unknown","","","",kew-21557
tro-3600145,A,Betulaceae,,Betula,,"papyrifera",f.,"papyrifera","",Synonym,,L,TRO,3600145,,"","","","",kew-21557
kew-21575,A,Betulaceae,,Betula,,"papyrifera",var.,"pensilis","Fernald",Synonym,,L,WCSP,21575,32219-2,"Rhodora","47: 318","","1945",kew-21557
kew-330323,A,Betulaceae,,Betula,,"papyrifera",var.,"recessa","Lepage",Synonym,,L,WCSP,330323,32220-2,"Naturaliste Canad.","89: 115","","1962",kew-21557
kew-21576,A,Betulaceae,,Betula,,"papyrifera",var.,"subcordata","(Rydb. ex B.T.Butler) Sarg.",Synonym,,L,WCSP,21576,32222-2,"J. Arnold Arbor.","1: 63","","1919",kew-21557
kew-21577,A,Betulaceae,,Betula,,"papyrifera",subsp.,"subcordata","(Rydb. ex B.T.Butler) A.E.Murray",Synonym,,L,WCSP,21577,32221-2,"Kalmia","12: 18","","1982",kew-21557
kew-21578,A,Betulaceae,,Betula,,"paraermanii",,"","V.N.Vassil.",Synonym,,H,WCSP,21578,107852-1,"Bot. Zhurn. S.S.S.R.","27: 7","","1942",kew-21280
kew-21579,A,Betulaceae,,Betula,,"paramushirensis",,"","Barkalov",Accepted,,H,WCSP,21579,903691-1,"Bot. Zhurn. (Moscow & Leningrad)","69: 1685","","1984",
kew-21580,A,Betulaceae,,Betula,,"parvibracteata",,"","Peinado, G.Moreno & A.Velasco",Synonym,,H,WCSP,21580,903692-1,"Willdenowia","13: 350","","1983 publ. 1984",kew-21587
kew-21581,A,Betulaceae,,Betula,,"pavlovii",,"","P.A.Baranov",Synonym,,H,WCSP,21581,,"Trudy Mongol'sk. Komiss.","14: 1-45","","1934",kew-21492
kew-21582,A,Betulaceae,,Betula,,"pendula",,"","Roth",Accepted,,H,WCSP,21582,295174-1,"Tent. Fl. Germ.","1: 405","","1788",
kew-21583,A,Betulaceae,,Betula,,"pendula",f.,"bircalensis","(Mela) Hämet-Ahti",Synonym,,L,WCSP,21583,955354-1,"Memoranda Soc. Fauna Fl. Fenn.","65: 9","","1989",kew-21582
kew-21584,A,Betulaceae,,Betula,,"pendula",var.,"carelica","(Merckl.) Hämet-Ahti",Synonym,,L,WCSP,21584,923043-1,"Ann. Bot. Fenn.","21: 209","","1984",kew-21582
kew-21585,A,Betulaceae,,Betula,,"pendula",f.,"crispa","(Rchb.) Hämet-Ahti",Synonym,,L,WCSP,21585,955355-1,"Memoranda Soc. Fauna Fl. Fenn.","65: 9","","1989",kew-21582
kew-376436,A,Betulaceae,,Betula,,"pendula",f.,"dalecarlica","(L.f.) C.K.Schneid.",Synonym,,L,WCSP,376436,,"Ill. Handb. Laubholzk.","1: 112","","1904",kew-21582
kew-386836,A,Betulaceae,,Betula,,"pendula",subsp.,"etnensis","(Raf.) Zangh.",Synonym,,L,WCSP,386836,,"Fl. Italica","1: 79","","1976",kew-21582
kew-221340,A,Betulaceae,,Betula,,"pendula",f.,"fastigiata","(Clemenc.) Dippel",Synonym,,L,WCSP,221340,,"Handb. Laubholzk.","2: 167","","1892",kew-21582
kew-21586,A,Betulaceae,,Betula,,"pendula",subsp.,"fontqueri","(Rothm.) G.Moreno & Peinado",Synonym,,L,WCSP,21586,954595-1,"Anales Jard. Bot. Madrid","45: 359","","1988",kew-21587
kew-21587,A,Betulaceae,,Betula,,"pendula",var.,"fontqueri","(Rothm.) G.Moreno & Peinado",Accepted,,L,WCSP,21587,954596-1,"Anales Jard. Bot. Madrid","45: 359","","1988",
kew-21588,A,Betulaceae,,Betula,,"pendula",var.,"japonica","(Miq.) Rehder",Synonym,,L,WCSP,21588,,"Cycl. Amer. Hort.","1: 159","","1900",kew-342865
kew-21589,A,Betulaceae,,Betula,,"pendula",subsp.,"kamtschatica","(Regel) Shemberg",Synonym,,L,WCSP,21589,,"Bot. Zhurn. (Moscow & Leningrad)","70: 1064","","1985",kew-21607
kew-330324,A,Betulaceae,,Betula,,"pendula",var.,"laciniata","Tidestr.",Synonym,,L,WCSP,330324,32224-2,"Elys. Marian., Ferns","3: 55","","1910",kew-21582
kew-21590,A,Betulaceae,,Betula,,"pendula",var.,"lapponica","(Lindq.) Hämet-Ahti",Synonym,,L,WCSP,21590,955353-1,"Memoranda Soc. Fauna Fl. Fenn.","65: 9","","1989",kew-21582
kew-21591,A,Betulaceae,,Betula,,"pendula",var.,"meridionalis","G.Moreno & Peinado",Synonym,,L,WCSP,21591,950488-1,"Anales Jard. Bot. Madrid","45: 359","","1988",kew-21582
kew-342851,A,Betulaceae,,Betula,,"pendula",f.,"microdonta","C.K.Schneid.",Synonym,,L,WCSP,342851,,"Ill. Handb. Laubholzk.","1: 113","","1904",kew-342865
kew-21592,A,Betulaceae,,Betula,,"pendula",var.,"microlepis","(I.V.Vassil.) Doluch.",Synonym,,L,WCSP,21592,874742-1,"in Fl. Gruzii","ed. 2, 3: 24","","1975",kew-21582
kew-372289,A,Betulaceae,,Betula,,"pendula",var.,"obscura","(Kotula ex Fiek) Olšavská",Synonym,,L,WCSP,372289,77089507-1,"Fl. Slovenska","5(3): 149","","2006",kew-21167
kew-21593,A,Betulaceae,,Betula,,"pendula",var.,"oycowiensis","(Besser) Dippel",Accepted,,L,WCSP,21593,,"Handb. Laubholzk.","2: 167","","1891",
kew-21594,A,Betulaceae,,Betula,,"pendula",f.,"palmeri","Hämet-Ahti",Synonym,,L,WCSP,21594,969978-1,"Ann. Bot. Fenn.","29: 329","","1992",kew-21582
kew-21595,A,Betulaceae,,Betula,,"pendula",var.,"parvibracteata","(Peinado, G.Moreno & A.Velasco) G.Moreno & Peinado",Synonym,,L,WCSP,21595,954597-1,"Anales Jard. Bot. Madrid","45: 359","","1988",kew-21587
kew-21596,A,Betulaceae,,Betula,,"pendula",var.,"pendula","",Synonym,,L,WCSP,21596,,"Unknown","","","",kew-21582
kew-342854,A,Betulaceae,,Betula,,"pendula",var.,"tauschii","(Regel) Rehder",Synonym,,L,WCSP,342854,,"Stand. Cycl. Hort.","1: 498","","1914",kew-21604
kew-21597,A,Betulaceae,,Betula,,"perfiljevii",,"","V.N.Vassil.",Synonym,,H,WCSP,21597,32225-2,"Novosti Sist. Vyssh. Rast.","3: 75","","1966",kew-21508
kew-21598,A,Betulaceae,,Betula,,"persicifolia",,"","K.Koch",Synonym,Invalid,H,WCSP,21598,295175-1,"Dendrologie","2(2): 641","","1873",kew-21135
kew-21599,A,Betulaceae,,Betula,,"pinnata",,"","Lundmark",Synonym,,H,WCSP,21599,295176-1,"Kongl. Vetensk. Acad. Nya Handl.","1790: 131","","1790",kew-6417
kew-21600,A,Betulaceae,,Betula,,"pinnata",var.,"hybrida","Lundmark",Synonym,,L,WCSP,21600,,"Kongl. Vetensk. Acad. Nya Handl.","1790: 130","","1790",kew-21582
kew-21601,A,Betulaceae,,Betula,×,"piperi",,"","Britton",Synonym,,H,WCSP,21601,32227-2,"Bull. Torrey Bot. Club","31: 165","","1904",kew-21790
tro-3600114,A,Betulaceae,,Betula,×,"piperi",,"","C.L. Hitchc.",Accepted,,M,TRO,3600114,,"Advis. Leafl. Bot. Branch","2: 78","78","1964",
kew-21602,A,Betulaceae,,Betula,,"pirifolia",,"","K.Koch",Synonym,,H,WCSP,21602,295178-1,"Dendrologie","2(2): 646","","1873",kew-21557
kew-21603,A,Betulaceae,,Betula,,"platyodontia",,"","Kindb.",Synonym,,H,WCSP,21603,107856-1,"Bot. Not.","1909: 118","","1909",kew-21649
kew-21604,A,Betulaceae,,Betula,,"platyphylla",,"","Sukaczev",Accepted,,H,WCSP,21604,107857-1,"Trudy Bot. Muz. Imp. Akad. Nauk","8: 220","","1911",
kew-21605,A,Betulaceae,,Betula,,"platyphylla",var.,"brunnea","J.X.Huang",Synonym,,L,WCSP,21605,949125-1,"Bull. Bot. Res., Harbin","6(2): 125","","1986",kew-21604
kew-342863,A,Betulaceae,,Betula,,"platyphylla",var.,"cuneifolia","(Nakai) H.Hara",Synonym,,L,WCSP,342863,,"J. Jap. Bot.","13: 385","","1937",kew-342865
kew-21606,A,Betulaceae,,Betula,,"platyphylla",var.,"japonica","(Miq.) H.Hara",Synonym,,L,WCSP,21606,,"J. Jap. Bot.","13: 384","","1937",kew-342865
tro-3600302,A,Betulaceae,,Betula,,"platyphylla",var.,"japonica","(Miq.) Hara",Synonym,,L,TRO,3600302,,"","","","",kew-21604
kew-21607,A,Betulaceae,,Betula,,"platyphylla",subsp.,"kamtschatica","(Regel) Vorosch.",Accepted,,L,WCSP,21607,987726-1,"Florist. Issl. Razn. Raionakh SSSR","162","","1985",
kew-21608,A,Betulaceae,,Betula,,"platyphylla",var.,"kamtschatica","(Regel) H.Hara",Synonym,,L,WCSP,21608,,"J. Jap. Bot.","13: 385","","1937",kew-21607
tro-3600408,A,Betulaceae,,Betula,,"platyphylla",var.,"kamtschatica","(Regel) Hara",Synonym,,L,TRO,3600408,,"?","","","",kew-21607
kew-342864,A,Betulaceae,,Betula,,"platyphylla",f.,"laciniata","(Miyabe & Tatew.) H.Hara",Synonym,,L,WCSP,342864,,"J. Jap. Bot.","13: 385","","1937",kew-342865
kew-21609,A,Betulaceae,,Betula,,"platyphylla",var.,"mandshurica","(Regel) H.Hara",Synonym,,L,WCSP,21609,,"J. Jap. Bot.","13: 385","","1937",kew-342865
kew-342865,A,Betulaceae,,Betula,,"platyphylla",subsp.,"mandshurica","(Regel) Kitag.",Accepted,,L,WCSP,342865,,"Lin. Fl. Manshur.","165","","1939",
kew-21610,A,Betulaceae,,Betula,,"platyphylla",subsp.,"minutifolia","(Kozhevn.) Kozhevn.",Accepted,,L,WCSP,21610,919712-1,"Novosti Sist. Vyssh. Rast.","18: 236","","1981",
kew-21611,A,Betulaceae,,Betula,,"platyphylla",var.,"phellodendroides","S.L.Tung",Synonym,,L,WCSP,21611,916145-1,"Bull. Bot. Res., Harbin","1(1-2): 136","","1981",kew-21604
kew-21612,A,Betulaceae,,Betula,,"platyphylla",subsp.,"platyphylla","",Synonym,,L,WCSP,21612,,"Unknown","","","",kew-21604
kew-342861,A,Betulaceae,,Betula,,"platyphylla",var.,"pluricostata","(H.J.P.Winkl.) Tatew.",Synonym,,L,WCSP,342861,,"Bull. Forest. Soc. Hokkaido","32(384): 636","","1934",kew-342865
kew-452496,A,Betulaceae,,Betula,,"platyphylla",var.,"rockii","(Rehder) Rehder",Synonym,,L,WCSP,452496,,"J. Arnold Arbor.","20: 411","","1939",kew-21700
kew-21613,A,Betulaceae,,Betula,,"platyphylla",var.,"szechuanica","(C.K.Schneid.) Rehder",Synonym,,L,WCSP,21613,,"J. Arnold Arbor.","20: 311","","1939",kew-21751
kew-342860,A,Betulaceae,,Betula,,"platyphylla",var.,"tauschii","(Regel) Tatew.",Synonym,,L,WCSP,342860,,"Bull. Forest. Soc. Hokkaido","32(384): 636","","1934",kew-21604
kew-21614,A,Betulaceae,,Betula,,"platyphylloides",,"","V.N.Vassil.",Synonym,,H,WCSP,21614,107858-1,"Spisok Rast. Gerb. Fl. S.S.S.R. Bot. Inst. Vsesoyuzn. Akad. Nauk","16: 81","","1966",kew-21582
kew-21615,A,Betulaceae,,Betula,,"platyphylloides",var.,"microphylla","Osadchii",Synonym,,L,WCSP,21615,,"Izv. Akad. Nauk Moldavsk. S.S.R., Ser. Biol. Khim. Nauk","1973(6): 12","","1973",kew-21582
tro-50271686,A,Betulaceae,,Betula,,"platyptera",,"","Kindb.",Unresolved,,L,TRO,50271686,107860-1,"Bot. Not.","1909: 119","119","1909",
kew-21616,A,Betulaceae,,Betula,,"plettkei",,"","Junge",Unresolved,,L,WCSP,21616,295179-1,"Verh. Naturwiss. Vereins Hamburg","III, 13: 39","","1905",
kew-21618,A,Betulaceae,,Betula,,"pontica",,"","Loudon",Synonym,,H,WCSP,21618,295180-1,"Encycl. Pl.","720","","1855",kew-21636
kew-21619,A,Betulaceae,,Betula,,"populifolia",,"","Aiton",Synonym,,H,WCSP,21619,,"Hort. Kew.","3: 336","","1789",kew-21636
kew-21620,A,Betulaceae,,Betula,,"populifolia",,"","Marshall",Accepted,,H,WCSP,21620,107861-1,"Arbust. Amer.","19","","1785",
kew-330325,A,Betulaceae,,Betula,,"populifolia",f.,"incisifolia","Fernald",Synonym,,L,WCSP,330325,32229-2,"Rhodora","47: 304","","1945",kew-21620
kew-376125,A,Betulaceae,,Betula,,"populifolia",var.,"pendula","Loudon",Synonym,,L,WCSP,376125,,"Arbor. Frutic. Brit.","3: 1707","","1838",kew-21620
kew-376126,A,Betulaceae,,Betula,,"populifolia",f.,"pendula","(Loudon) H.J.P.Winkl.",Synonym,,L,WCSP,376126,,"Pflanzenr.","IV, 61: 80","","1904",kew-21620
tro-3600168,A,Betulaceae,,Betula,,"populifolia",f.,"populifolia","",Synonym,,L,TRO,3600168,,"","","","",kew-21620
kew-21621,A,Betulaceae,,Betula,,"potamophila",,"","V.N.Vassil.",Accepted,,H,WCSP,21621,,"Novosti Sist. Vyssh. Rast.","7: 105","","1970 publ. 1971",
kew-21622,A,Betulaceae,,Betula,,"potaninii",,"","Batalin",Accepted,,H,WCSP,21622,295183-1,"Trudy Glavn. Bot. Sada","13: 101","","1893",
kew-21623,A,Betulaceae,,Betula,,"potaninii",var.,"trichogemma","L.C.Hu",Synonym,,L,WCSP,21623,,"Acta Phytotax. Sin.","17(2): 91","","1979",kew-21622
kew-21624,A,Betulaceae,,Betula,,"prochorowii",,"","Kuzen. & Litv.",Synonym,,H,WCSP,21624,107863-1,"Trudy Bot. Muz. Imp. Akad. Nauk","12: 70","","1914",kew-21438
kew-21625,A,Betulaceae,,Betula,,"procurva",,"","Litv.",Accepted,,H,WCSP,21625,107864-1,"Trudy Bot. Muz. Imp. Akad. Nauk","12: 93","","1914",
kew-21626,A,Betulaceae,,Betula,,"procurva",subsp.,"lipskyi","(V.N.Vassil.) Ovcz.",Accepted,,L,WCSP,21626,,"in Fl. Tadzhikskoi SSR","3: 130","","1968",
kew-343068,A,Betulaceae,,Betula,,"procurva",subsp.,"procurva","",Synonym,,L,WCSP,343068,,"Unknown","","","",kew-21625
kew-21627,A,Betulaceae,,Betula,,"procurva",subsp.,"schugnanica","(B.Fedtsch.) Ovcz.",Accepted,,L,WCSP,21627,,"in Fl. Tadzhikskoi SSR","3: 132","","1968",
kew-21628,A,Betulaceae,,Betula,,"psammophila",,"","V.N.Vassil.",Accepted,,H,WCSP,21628,,"Novosti Sist. Vyssh. Rast.","7: 97","","1970 publ. 1971",
tro-3600310,A,Betulaceae,,Betula,,"pseudoalafica",,"","V.N. Vassil.",Synonym,,M,TRO,3600310,,"","","","",kew-21082
kew-21630,A,Betulaceae,,Betula,,"pseudoalajica",,"","V.N.Vassil.",Synonym,,H,WCSP,21630,107866-1,"Bot. Zhurn. (Moscow & Leningrad)","48: 904","","1963",kew-21082
kew-21631,A,Betulaceae,,Betula,×,"pseudocarpatica",,"","Simonk.",Unresolved,,L,WCSP,21631,295184-1,"Enum. Fl. Transsilv.","491","","1887",
kew-21632,A,Betulaceae,,Betula,,"pseudolenta",,"","V.N.Vassil.",Synonym,,H,WCSP,21632,107867-1,"Bot. Zhurn. S.S.S.R.","27: 78","","1942",kew-21355
kew-21633,A,Betulaceae,,Betula,,"pseudomiddendorffii",,"","V.N.Vassil.",Synonym,,H,WCSP,21633,107868-1,"Trudy Inst. For. Acad. Sci. URSS","37: 123","","1958",kew-21272
tro-3600311,A,Betulaceae,,Betula,×,"pseudomiddendorffii",,"","V.N. Vassil.",Unresolved,,L,TRO,3600311,,"","","","",
kew-21634,A,Betulaceae,,Betula,,"pseudopendula",,"","V.N.Vassil.",Synonym,,H,WCSP,21634,107869-1,"Trudy Inst. For. Acad. Sci. URSS","37: 134","","1958",kew-21582
kew-21635,A,Betulaceae,,Betula,,"pubentissima",,"","V.N.Vassil.",Unresolved,,L,WCSP,21635,107870-1,"Bot. Zhurn. (Moscow & Leningrad)","48: 904","","1963",
kew-21636,A,Betulaceae,,Betula,,"pubescens",,"","Ehrh.",Accepted,,H,WCSP,21636,,"Beitr. Naturk.","4: 160","","1789",
kew-21637,A,Betulaceae,,Betula,,"pubescens",var.,"appressa","Kallio & Y.Mäkinen",Synonym,,L,WCSP,21637,874746-1,"Ann. Univ. Turku, A","60: 58","","1978",kew-21636
kew-330326,A,Betulaceae,,Betula,,"pubescens",subsp.,"borealis","(Spach) Á.Löve & D.Löve",Synonym,,L,WCSP,330326,32231-2,"Univ. Colorado Stud. Ser. Biol.","17: 20","","1965",kew-21671
tro-50271598,A,Betulaceae,,Betula,,"pubescens",var.,"borealis","(Spach) Á. Löve & D. Löve",Synonym,,L,TRO,50271598,,"?","","","",kew-21671
kew-21639,A,Betulaceae,,Betula,,"pubescens",subsp.,"callosa","(Notø) Á.Löve & D.Löve",Synonym,,L,WCSP,21639,,"Acta Horti Gothob.","20: 140","","1956",kew-21636
kew-21640,A,Betulaceae,,Betula,,"pubescens",subsp.,"carpatica","(Waldst. & Kit. ex Willd.) Asch. & Graebn.",Synonym,,L,WCSP,21640,,"Fl. Nordostdeut. Flachl.","253","","1898",kew-21649
kew-21641,A,Betulaceae,,Betula,,"pubescens",var.,"carpatica","(Waldst. & Kit. ex Willd.) W.D.J.Koch",Synonym,,L,WCSP,21641,,"Syn. Fl. Germ. Helv.","660","","1837",kew-21649
kew-21642,A,Betulaceae,,Betula,,"pubescens",subsp.,"celtiberica","(Rothm. & Vasc.) Rivas Mart.",Synonym,,L,WCSP,21642,,"Trab. Dept. Bot. Fisiol. Veg. Madrid","3: 78","","1971",kew-21636
kew-21643,A,Betulaceae,,Betula,,"pubescens",f.,"columnaris","T.Ulvinen",Synonym,,L,WCSP,21643,1007148-1,"Ann. Bot. Fenn.","36: 34","","1999",kew-21636
kew-21644,A,Betulaceae,,Betula,,"pubescens",subsp.,"concinna","(Gunnarsson) Á.Löve & D.Löve",Synonym,,L,WCSP,21644,,"Acta Horti Gothob.","20: 140","","1956",kew-21636
kew-21241,A,Betulaceae,,Betula,,"pubescens",var.,"cryptocarpa","Laest.",Synonym,,L,WCSP,21241,,"Bot. Not.","1856: 109","","1857",kew-21636
kew-21645,A,Betulaceae,,Betula,,"pubescens",var.,"czerepanovii","(N.I.Orlova) Hämet-Ahti",Synonym,,L,WCSP,21645,955356-1,"Memoranda Soc. Fauna Fl. Fenn.","65: 9","","1989",kew-21659
kew-21646,A,Betulaceae,,Betula,,"pubescens",subsp.,"czerepanovii","(N.I.Orlova) Hämet-Ahti",Synonym,,L,WCSP,21646,953827-1,"Phytocoenologia","15: 450","","1987",kew-21659
kew-21647,A,Betulaceae,,Betula,,"pubescens",var.,"denudata","Gren. & Godr.",Synonym,,L,WCSP,21647,,"Fl. France","3: 148","","1855",kew-21649
kew-340837,A,Betulaceae,,Betula,,"pubescens",var.,"friesii","(Larss. ex Hartm.) Nyman",Synonym,,L,WCSP,340837,,"Consp. Fl. Eur.","672","","1881",kew-21636
kew-21648,A,Betulaceae,,Betula,,"pubescens",var.,"glabra","Fiek ex C.K.Schneid.",Synonym,,L,WCSP,21648,,"Ill. Handb. Laubholzk.","1: 117","","1904",kew-21636
kew-21649,A,Betulaceae,,Betula,,"pubescens",var.,"glabrata","Wahlenb.",Accepted,,L,WCSP,21649,,"Fl. Carpat. Princ.","306","","1814",
kew-21650,A,Betulaceae,,Betula,,"pubescens",subsp.,"glutinosa","(Trautv. ex Regel) Berher",Synonym,,L,WCSP,21650,,"Fl. Vosges","ed. 2: 205","","1887",kew-21649
kew-340835,A,Betulaceae,,Betula,,"pubescens",var.,"glutinosa","(Trautv. ex Regel) Nyman",Synonym,,L,WCSP,340835,,"Consp. Fl. Eur.","672","","1881",kew-21649
kew-221341,A,Betulaceae,,Betula,,"pubescens",var.,"golitsinii","(V.N.Vassil.) Tzvelev",Accepted,,L,WCSP,221341,50426220-2,"Novosti Sist. Vyssh. Rast.","34: 61","","2002",
kew-21651,A,Betulaceae,,Betula,,"pubescens",f.,"hibernifolia","T.Ulvinen",Synonym,,L,WCSP,21651,951214-1,"Memoranda Soc. Fauna Fl. Fenn.","65: 133","","1989",kew-21636
kew-342207,A,Betulaceae,,Betula,,"pubescens",var.,"lucida","(Courtois) Wesm.",Synonym,,L,WCSP,342207,,"Bull. Soc. Roy. Bot. Belgique","2: 147","","1863",kew-21636
kew-21483,A,Betulaceae,,Betula,,"pubescens",var.,"media","Laest.",Synonym,,L,WCSP,21483,,"Bot. Not.","1856: 107","","1857",kew-21636
kew-21485,A,Betulaceae,,Betula,,"pubescens",var.,"megalocarpa","Laest.",Synonym,,L,WCSP,21485,,"Bot. Not.","1856: 106","","1857",kew-21636
kew-376521,A,Betulaceae,,Betula,,"pubescens",subsp.,"minor","(Tuck.) Á.Löve & D.Löve",Synonym,,L,WCSP,376521,,"Acta Horti Gothob.","20: 140","","1956",kew-21495
kew-21653,A,Betulaceae,,Betula,,"pubescens",var.,"murithii","(Gaudin ex Regel) Gremli",Synonym,,L,WCSP,21653,,"Excursionsfl. Schweiz","ed. 7: 365","","1893",kew-21649
kew-341947,A,Betulaceae,,Betula,,"pubescens",subsp.,"murithii","(Gaudin ex Regel) Nyman",Synonym,,L,WCSP,341947,,"Consp. Fl. Eur.","Suppl. 2: 282","","1890",kew-21649
kew-21654,A,Betulaceae,,Betula,,"pubescens",subsp.,"nigricans","Maire ex Just",Synonym,,L,WCSP,21654,,"Bot. Jahrb. Syst.","23: 228","","1896",kew-21636
kew-340836,A,Betulaceae,,Betula,,"pubescens",var.,"nigricans","(Wender.) Nyman",Synonym,,L,WCSP,340836,,"Consp. Fl. Eur.","672","","1881",kew-21636
kew-21655,A,Betulaceae,,Betula,,"pubescens",var.,"oblongifolia","Wimm.",Synonym,,L,WCSP,21655,,"Fl. Schles.","337","","1840",kew-21636
kew-21656,A,Betulaceae,,Betula,,"pubescens",subsp.,"odorata","(Bechst.) E.F.Warb.",Synonym,,L,WCSP,21656,,"Fl. Brit. Isles","729","","1952",kew-21649
tro-50271271,A,Betulaceae,,Betula,,"pubescens",subsp.,"odorata","(Bechst.) Warb.",Synonym,,L,TRO,50271271,,"?","","","",kew-21649
kew-21657,A,Betulaceae,,Betula,,"pubescens",var.,"ovalifolia","Sukaczev",Synonym,,L,WCSP,21657,,"Izv. Imp. Akad. Nauk","8: 233","","1914",kew-21636
kew-345217,A,Betulaceae,,Betula,,"pubescens",subsp.,"ovalifolia","(Sukaczev) Printz",Synonym,,L,WCSP,345217,,"Veg. Siber.-Mongol. Front.","198","","1921",kew-21636
kew-21552,A,Betulaceae,,Betula,,"pubescens",var.,"palmiformis","Laest.",Synonym,,L,WCSP,21552,,"Bot. Not.","1856: 105","","1857",kew-21636
kew-376136,A,Betulaceae,,Betula,,"pubescens",f.,"pendula","Schelle",Synonym,,L,WCSP,376136,,"Handb. Laubholzben.","53","","1903",kew-21636
kew-21658,A,Betulaceae,,Betula,,"pubescens",var.,"pubescens","",Synonym,,L,WCSP,21658,,"Unknown","","","",kew-21636
kew-21659,A,Betulaceae,,Betula,,"pubescens",var.,"pumila","(L.) Govaerts",Accepted,,L,WCSP,21659,993519-1,"World Checklist Seed Pl.","2(1): 10","","1996",
kew-21660,A,Betulaceae,,Betula,,"pubescens",var.,"rhombifolia","(Tausch) Sukaczev",Synonym,,L,WCSP,21660,,"Izv. Imp. Akad. Nauk","8: 233","","1914",kew-21167
kew-345218,A,Betulaceae,,Betula,,"pubescens",subsp.,"rhombifolia","(Tausch) Printz",Synonym,,L,WCSP,345218,,"Veg. Siber.-Mongol. Front.","199","","1921",kew-21167
kew-21661,A,Betulaceae,,Betula,,"pubescens",f.,"rubra","T.Ulvinen",Synonym,,L,WCSP,21661,951215-1,"Memoranda Soc. Fauna Fl. Fenn.","65: 135","","1989",kew-21636
kew-21711,A,Betulaceae,,Betula,,"pubescens",var.,"rustica","Laest.",Synonym,,L,WCSP,21711,,"Bot. Not.","1856: 104","","1857",kew-21636
kew-21662,A,Betulaceae,,Betula,,"pubescens",var.,"sibakademica","Baran.",Synonym,,L,WCSP,21662,,"Izv. Zapadno-Sibirsk. Otd. Russk. Geogr. Obshch.","4(1): 52","","1924",kew-21636
kew-21734,A,Betulaceae,,Betula,,"pubescens",var.,"silvatica","Laest.",Synonym,,L,WCSP,21734,,"Bot. Not.","1856: 108","","1857",kew-21636
kew-21735,A,Betulaceae,,Betula,,"pubescens",var.,"silvestris","Laest.",Synonym,,L,WCSP,21735,,"Bot. Not.","1857: 107","","1857",kew-21636
kew-21663,A,Betulaceae,,Betula,,"pubescens",var.,"songarica","Regel",Synonym,,L,WCSP,21663,,"Enum. Pl. Semenov.","995","","1869",kew-21758
kew-21741,A,Betulaceae,,Betula,,"pubescens",var.,"subaequalis","Laest.",Synonym,,L,WCSP,21741,,"Bot. Not.","1856: 109","","1857",kew-21636
kew-21742,A,Betulaceae,,Betula,,"pubescens",var.,"subalpina","Laest.",Synonym,,L,WCSP,21742,,"Bot. Not.","1856: 110","","1857",kew-21636
kew-21664,A,Betulaceae,,Betula,,"pubescens",subsp.,"subarctica","(Orlova) Á.Löve & D.Löve",Synonym,,L,WCSP,21664,,"Bot. Not.","114: 51","","1961",kew-21636
kew-21665,A,Betulaceae,,Betula,,"pubescens",subsp.,"suecica","Gunnarsson",Synonym,,L,WCSP,21665,,"Sv. Fanerogamfl.","203","","1918",kew-21636
kew-21760,A,Betulaceae,,Betula,,"pubescens",var.,"tiliifolia","Laest.",Synonym,,L,WCSP,21760,,"Bot. Not.","1856: 106","","1857",kew-21659
kew-21666,A,Betulaceae,,Betula,,"pubescens",subsp.,"tortuosa","(Ledeb.) Nyman",Synonym,,L,WCSP,21666,,"Consp. Fl. Eur.","672","","1881",kew-21659
kew-21667,A,Betulaceae,,Betula,,"pubescens",var.,"tortuosa","(Ledeb.) Koehne",Synonym,,L,WCSP,21667,,"Deut. Dendrol.","109","","1893",kew-21659
kew-21669,A,Betulaceae,,Betula,,"pubescens",var.,"vestita","Gren. & Godr.",Synonym,,L,WCSP,21669,,"Fl. France","3: 148","","1855",kew-21636
kew-21670,A,Betulaceae,,Betula,,"pulchella",,"","Dippel",Unresolved,,L,WCSP,21670,295186-1,"Handb. Laubholzk.","2: 182","","1891",
kew-21671,A,Betulaceae,,Betula,,"pumila",,"","L.",Accepted,,H,WCSP,21671,30003581-2,"Mant. Pl.","1: 124","","1767",
kew-21672,A,Betulaceae,,Betula,,"pumila",var.,"borealis","(Spach) Regel",Synonym,,L,WCSP,21672,,"Nouv. Mém. Soc. Imp. Naturalistes Moscou","13(2): 113","","1861",kew-21671
kew-330327,A,Betulaceae,,Betula,,"pumila",var.,"fastigiata","Rehder",Synonym,,L,WCSP,330327,32232-2,"Stand. Cycl. Hort.","1: 499","","1914",kew-21671
kew-21673,A,Betulaceae,,Betula,,"pumila",var.,"glabra","Regel",Synonym,,L,WCSP,21673,,"Nouv. Mém. Soc. Imp. Naturalistes Moscou","13(2): 112","","1861",kew-21671
kew-21674,A,Betulaceae,,Betula,,"pumila",var.,"glabrescens","Regel",Synonym,,L,WCSP,21674,,"Bull. Soc. Imp. Naturalistes Moscou","38(2): 410","","1865",kew-21671
kew-452498,A,Betulaceae,,Betula,,"pumila",f.,"glabrescens","(Regel) Regel",Synonym,,L,WCSP,452498,,"Prodr.","16(2): 173","","1868",kew-21671
kew-21675,A,Betulaceae,,Betula,,"pumila",subsp.,"glandulifera","(Regel) Á.Löve & D.Löve",Synonym,,L,WCSP,21675,920571-1,"Taxon","31: 121","","1982",kew-21671
kew-21676,A,Betulaceae,,Betula,,"pumila",var.,"glandulifera","Regel",Synonym,,L,WCSP,21676,32234-2,"Bull. Soc. Imp. Naturalistes Moscou","38(2): 410","","1865",kew-21671
kew-330328,A,Betulaceae,,Betula,,"pumila",f.,"glandulifera","(Regel) H.J.P.Winkl.",Synonym,,L,WCSP,330328,293133-2,"Pflanzenr.","IV, 61: 72","","1904",kew-21671
kew-21677,A,Betulaceae,,Betula,,"pumila",f.,"hallii","(Howell) Brayshaw",Synonym,,L,WCSP,21677,874748-1,"Occas. Pap. British Columbia Prov. Mus.","18: 151","","1976",kew-21671
kew-21678,A,Betulaceae,,Betula,,"pumila",f.,"latipes","(H.J.P.Winkl.) Lepage",Synonym,,L,WCSP,21678,1089298-2,"Naturaliste Canad.","103: 220","","1976",kew-21671
kew-21679,A,Betulaceae,,Betula,,"pumila",var.,"latipes","H.J.P.Winkl.",Synonym,,L,WCSP,21679,32242-2,"Pflanzenr.","IV, 61: 72","","1904",kew-21671
kew-21680,A,Betulaceae,,Betula,,"pumila",f.,"pubescens","H.J.P.Winkl.",Synonym,,L,WCSP,21680,32243-2,"Pflanzenr.","IV, 61: 72","","1904",kew-21671
tro-3600147,A,Betulaceae,,Betula,,"pumila",var.,"pumila","",Synonym,,L,TRO,3600147,,"","","","",kew-21671
kew-21681,A,Betulaceae,,Betula,,"pumila",var.,"renifolia","Fernald",Synonym,,L,WCSP,21681,32244-2,"Rhodora","28: 190","","1926",kew-21671
kew-21682,A,Betulaceae,,Betula,,"pumila",var.,"setarioides","H.J.P.Winkl.",Synonym,,L,WCSP,21682,32245-2,"Pflanzenr.","IV, 61: 72","","1904",kew-21671
kew-21683,A,Betulaceae,,Betula,,"pumila",f.,"subcycla","Lepage",Synonym,,L,WCSP,21683,303724-2,"Naturaliste Canad.","103: 220","","1976",kew-21671
kew-21685,A,Betulaceae,,Betula,×,"purpusii",,"","C.K.Schneid.",Accepted,,H,WCSP,21685,,"Ill. Handb. Laubholzk.","1: 102","","1904",
tro-3600076,A,Betulaceae,,Betula,,"purpusii",,"","C.K. Schneid.",Unresolved,,L,TRO,3600076,,"","","","",
kew-21686,A,Betulaceae,,Betula,,"pyrolifolia",,"","V.N.Vassil.",Accepted,,H,WCSP,21686,,"Novosti Sist. Vyssh. Rast.","7: 111","","1970 publ. 1971",
kew-21687,A,Betulaceae,,Betula,,"quebeccensis",,"","Burgsd.",Synonym,,H,WCSP,21687,,"Neue Schriften Ges. Naturf. Freunde Berlin","5: 196","","1784",kew-21671
kew-21688,A,Betulaceae,,Betula,,"raddeana",,"","Trautv.",Accepted,,H,WCSP,21688,295190-1,"Trudy Glavn. Bot. Sada","5: 129","","1887",
kew-21689,A,Betulaceae,,Betula,×,"raymundii",,"","Lepage",Accepted,,H,WCSP,21689,324791-2,"Naturaliste Canad.","84: 57","","1957",
kew-21690,A,Betulaceae,,Betula,,"recurvata",,"","(I.V.Vassil.) V.N.Vassil.",Synonym,,H,WCSP,21690,107875-1,"Spisok Rast. Gerb. Fl. S.S.S.R. Bot. Inst. Vsesoyuzn. Akad. Nauk","16: 82","","1966",kew-21456
kew-21691,A,Betulaceae,,Betula,,"regeliana",,"","V.N.Vassil.",Accepted,,H,WCSP,21691,107877-1,"Bot. Zhurn. (Moscow & Leningrad)","48: 904","","1963",
kew-21692,A,Betulaceae,,Betula,,"resinifera",,"","Royle",Unresolved,,L,WCSP,21692,,"Ill. Bot. Himal. Mts.","343","","1839",
kew-21693,A,Betulaceae,,Betula,,"resinifera",,"","Britton",Synonym,Illegitimate,H,WCSP,21693,32247-2,"Bull. New York Bot. Gard.","2: 165","","1903",kew-21524
kew-21694,A,Betulaceae,,Betula,,"reticulata",,"","Rupr.",Synonym,,H,WCSP,21694,295193-1,"Bull. Cl. Phys.-Math. Acad. Imp. Sci. Saint-Pétersbourg","15: 378","","1857",kew-21543
kew-21696,A,Betulaceae,,Betula,,"rezniczenkoana",,"","(Litv.) Schischk.",Synonym,,H,WCSP,21696,107878-1,"Fl. Zap. Sibiri","4: 793","","1930",kew-21492
kew-21697,A,Betulaceae,,Betula,,"rhombibracteata",,"","P.C.Li",Synonym,,H,WCSP,21697,107879-1,"Acta Phytotax. Sin.","17(2): 88","","1979",kew-21245
kew-21698,A,Betulaceae,,Betula,×,"rhombifolia",,"","Tausch",Synonym,,H,WCSP,21698,,"Flora","38: 752","","1838",kew-21167
kew-374556,A,Betulaceae,,Betula,,"rhombifolia",,"","Nutt.",Unresolved,,L,WCSP,374556,60446927-2,"N. Amer. Sylv.","1: 24","","1842",
tro-50271214,A,Betulaceae,,Betula,,"rhombifolia",,"","Tausch",Synonym,,M,TRO,50271214,,"Flora","38: 752","752","1838",kew-21167
kew-21699,A,Betulaceae,,Betula,,"riparia",,"","W.W.Sm.",Synonym,,H,WCSP,21699,107880-1,"Notes Roy. Bot. Gard. Edinburgh","13: 155","","1921",kew-21462
kew-21700,A,Betulaceae,,Betula,,"rockii",,"","(Rehder) C.-A.Jansson",Accepted,,H,WCSP,21700,107881-1,"Acta Horti Gothob.","25: 120","","1962",
kew-21701,A,Betulaceae,,Betula,,"rosae",,"","H.J.P.Winkl.",Unresolved,,L,WCSP,21701,,"Pflanzenr.","IV, 61: 135","","1904",
kew-21702,A,Betulaceae,,Betula,×,"rosendahlii",,"","Butters & Abbe",Unresolved,,L,WCSP,21702,324792-2,"Rhodora","55: 143","","1953",
kew-21703,A,Betulaceae,,Betula,,"rossica",,"","Miniaev",Unresolved,,L,WCSP,21703,107883-1,"Konsp. Fl. Pskov. Obl., Leningrad","160: 62","","1970",
kew-21704,A,Betulaceae,,Betula,,"rotundata",,"","Beck",Synonym,,H,WCSP,21704,295197-1,"Fl. Nieder-Österreich","1: 262","","1890",kew-21636
kew-21705,A,Betulaceae,,Betula,,"rotundifolia",,"","Regel & Tiling",Synonym,Illegitimate,H,WCSP,21705,295199-1,"Fl. Ajan.","118","","1858",kew-21272
kew-21706,A,Betulaceae,,Betula,,"rotundifolia",,"","Spach",Synonym,,H,WCSP,21706,295198-1,"Ann. Sci. Nat., Bot.","II, 15: 194","","1841",kew-21520
kew-21707,A,Betulaceae,,Betula,,"rubra",,"","Regel",Unresolved,,L,WCSP,21707,295201-1,"Prodr.","16(2): 167","","1868",
kew-21708,A,Betulaceae,,Betula,,"rubra",,"","F.Michx.",Synonym,,H,WCSP,21708,295200-1,"Hist. Arbr. Forest.","2: 143","","1811",kew-21527
kew-21709,A,Betulaceae,,Betula,,"rugosa",,"","(Du Roi) Ehrh.",Synonym,,H,WCSP,21709,295202-1,"Beitr. Naturk.","3: 21","","1788",kew-6448
kew-21710,A,Betulaceae,,Betula,,"rumnica",,"","P.A.Baranov",Synonym,,H,WCSP,21710,,"Trudy Mongol'sk. Komiss.","14: 1-45","","1934",kew-21492
tro-3600248,A,Betulaceae,,Betula,,"ruprechtiana",,"","Trautv.",Unresolved,,L,TRO,3600248,,"","","","",
tro-50271315,A,Betulaceae,,Betula,,"rustica",,"","Laest.",Unresolved,,L,TRO,50271315,,"Bot. Not.","1856: 104","104","1857",
kew-21712,A,Betulaceae,,Betula,,"saitoana",,"","Nakai",Synonym,,H,WCSP,21712,107884-1,"Repert. Spec. Nov. Regni Veg.","13: 249","","1914",kew-21280
kew-21713,A,Betulaceae,,Betula,,"sajanensis",,"","V.N.Vassil.",Synonym,,H,WCSP,21713,107885-1,"Trudy Inst. For. Acad. Sci. URSS","37: 131","","1958",kew-21636
kew-21714,A,Betulaceae,,Betula,,"saksarensis",,"","Polozhij & A.T.Malzeva",Accepted,,H,WCSP,21714,107886-1,"Sist. Zametki Mater. Gerb. Krylova Tomsk. Gosud. Univ. Kuybysheva","85(27): 15","","1974 publ. 1975",
kew-21715,A,Betulaceae,,Betula,×,"sandbergii",,"","Britton",Accepted,,H,WCSP,21715,324794-2,"Bull. Torrey Bot. Club","31: 166","","1904",
tro-3600078,A,Betulaceae,,Betula,,"sandbergii",,"","Britton",Unresolved,,L,TRO,3600078,,"Bull. Torrey Bot. Club","31(3): 166","166","1904",
kew-330330,A,Betulaceae,,Betula,×,"sandbergii",f.,"maxima","Rosend.",Synonym,,L,WCSP,330330,32248-2,"Minnesota Bot. Stud.","4: 455","","1916",kew-21715
kew-21717,A,Betulaceae,,Betula,,"saposhnikovii",,"","Sukaczev",Accepted,,H,WCSP,21717,107888-1,"Izv. Imp. Akad. Nauk","VI, 8: 235","","1914",
kew-21718,A,Betulaceae,,Betula,,"saposhnikovii",subsp.,"jarmolenkoana","(Golosk.) Ovcz. & Czukav.",Synonym,,L,WCSP,21718,,"in Fl. Tadzhikskoi SSR","3: 140","","1968",kew-21412
kew-21719,A,Betulaceae,,Betula,,"saposhnikovii",subsp.,"murgabica","(V.N.Vassil.) Ovcz. & Czukav.",Synonym,,L,WCSP,21719,,"in Fl. Tadzhikskoi SSR","3: 140","","1968",kew-21500
kew-21720,A,Betulaceae,,Betula,×,"sargentii",,"","Dugle",Accepted,,H,WCSP,21720,324785-2,"Canad. J. Bot.","44: 961","","1966",
kew-21721,A,Betulaceae,,Betula,,"saviczii",,"","V.N.Vassil.",Accepted,,H,WCSP,21721,,"Novosti Sist. Vyssh. Rast.","7: 125","","1970 publ. 1971",
kew-21722,A,Betulaceae,,Betula,,"saxophila",,"","Lepage",Synonym,,H,WCSP,21722,305375-2,"Naturaliste Canad.","103: 221","","1976",kew-21495
kew-21723,A,Betulaceae,,Betula,,"schmidtii",,"","Regel",Accepted,,H,WCSP,21723,295205-1,"Bull. Soc. Imp. Naturalistes Moscou","38(2): 412","","1865",
kew-342881,A,Betulaceae,,Betula,,"schmidtii",var.,"angustifolia","Makino & Nemoto",Synonym,,L,WCSP,342881,77075063-1,"Fl. Japan","ed. 2: 185","","1931",kew-21723
kew-346089,A,Betulaceae,,Betula,,"schmidtii",f.,"angustifolia","(Makino & Nemoto) Sugim. ex H.Ohba",Synonym,,L,WCSP,346089,77075064-1,"in Fl. Japan","2a: 36","","2006",kew-21723
kew-21724,A,Betulaceae,,Betula,,"schugnanica",,"","(B.Fedtsch.) Litv.",Synonym,,H,WCSP,21724,107892-1,"Trudy Bot. Muz. Imp. Akad. Nauk","12: 93","","1914",kew-21627
kew-21725,A,Betulaceae,,Betula,×,"seideliana",,"","Missbach",Unresolved,,L,WCSP,21725,107893-1,"Allg. Bot. Z. Syst.","14: 121","","1908",
kew-21728,A,Betulaceae,,Betula,,"seravschanica",,"","V.N.Vassil.",Accepted,,H,WCSP,21728,107894-1,"Bot. Zhurn. (Moscow & Leningrad)","48: 903","","1963",
kew-21729,A,Betulaceae,,Betula,,"serrulata",,"","Aiton",Synonym,,H,WCSP,21729,32249-2,"Hortus Kew.","3: 338","","1789",kew-6598
kew-21730,A,Betulaceae,,Betula,,"sessilis",,"","Kom.",Synonym,,H,WCSP,21730,,"Bot. Mater. Gerb. Glavn. Bot. Sada RSFSR","2: 131","","1921",kew-21508
tro-50271606,A,Betulaceae,,Betula,,"setarioides",,"","H. Winkl.",Unresolved,,L,TRO,50271606,,"Pflanzenr.","IV,61: 72","72","1904",
kew-21731,A,Betulaceae,,Betula,,"shikokiana",,"","Nakai",Synonym,,H,WCSP,21731,,"Bot. Mag. (Tokyo)","28: 236","","1914",kew-21280
kew-21732,A,Betulaceae,,Betula,,"sibirica",,"","(Ledeb.) C.Pei",Synonym,,H,WCSP,21732,107896-1,"Bot. Bull. Acad. Sin.","2: 218","","1948",kew-21508
kew-21733,A,Betulaceae,,Betula,,"sibirica",,"","Lodd. ex Regel",Synonym,,H,WCSP,21733,295207-1,"Prodr.","16(2): 173","","1868",kew-21373
tro-50271316,A,Betulaceae,,Betula,,"silvatica",,"","Laest.",Unresolved,,L,TRO,50271316,,"Bot. Not.","1856: 108","108","1857",
tro-50271317,A,Betulaceae,,Betula,,"silvestris",,"","Laest.",Unresolved,,L,TRO,50271317,,"Bot. Not.","1857: 107","107","1857",
kew-21736,A,Betulaceae,,Betula,,"socolowii",,"","J.Jacq. ex Regel",Synonym,Invalid,H,WCSP,21736,295210-1,"Prodr.","16(2): 173","","1868",kew-21373
kew-21737,A,Betulaceae,,Betula,,"sokolowii",,"","Regel",Synonym,,H,WCSP,21737,295212-1,"Prodr.","16(2): 163","","1868",kew-21636
kew-21738,A,Betulaceae,,Betula,,"sollennis",,"","Koidz.",Synonym,,H,WCSP,21738,107897-1,"Fl. Symb. Orient.-Asiat.","20","","1930",kew-21355
tro-50271616,A,Betulaceae,,Betula,,"songarica",,"","Regel",Unresolved,,L,TRO,50271616,,"","995","995","1869",
kew-21739,A,Betulaceae,,Betula,,"stenocarpa",,"","Kindb.",Synonym,,H,WCSP,21739,107898-1,"Bot. Not.","1909: 117","","1909",kew-21649
kew-21740,A,Betulaceae,,Betula,,"stenolepis",,"","V.N.Vassil.",Synonym,,H,WCSP,21740,,"Bot. Zhurn. (Moscow & Leningrad)","48: 903","","1963",kew-21555
tro-50271318,A,Betulaceae,,Betula,,"subaequalis",,"","Laest.",Unresolved,,L,TRO,50271318,,"Bot. Not.","1856: 109","109","1857",
tro-50271319,A,Betulaceae,,Betula,,"subalpina",,"","Laest.",Unresolved,,L,TRO,50271319,,"Bot. Not.","1857: 110","110","1857",
kew-21743,A,Betulaceae,,Betula,,"subarctica",,"","Orlova",Synonym,,H,WCSP,21743,,"Fl. Murm. Prov.","3: 124, 365","","1956",kew-21636
kew-221342,A,Betulaceae,,Betula,,"subarctica",var.,"pojarkovae","Tzvelev",Synonym,,L,WCSP,221342,50426221-2,"Novosti Sist. Vyssh. Rast.","34: 62","","2002",kew-21636
kew-21744,A,Betulaceae,,Betula,,"subcordata",,"","Rydb. ex B.T.Butler",Synonym,,H,WCSP,21744,32250-2,"Bull. Torrey Bot. Club","36: 436","","1909",kew-21557
kew-21745,A,Betulaceae,,Betula,,"subodorata",,"","Kindb.",Synonym,,H,WCSP,21745,107902-1,"Bot. Not.","1909: 118","","1909",kew-21649
kew-21746,A,Betulaceae,,Betula,,"substepposa",,"","V.N.Vassil.",Synonym,,H,WCSP,21746,107903-1,"Bot. Mater. Gerb. Bot. Inst. Komarova Akad. Nauk S.S.S.R.","13: 61","","1950",kew-343069
kew-21747,A,Betulaceae,,Betula,×,"subtricholepidea",,"","Kindb.",Unresolved,,L,WCSP,21747,107904-1,"Bot. Not.","1909: 120","","1909",
tro-50206550,A,Betulaceae,,Betula,×,"sukaczevii",,"","Soczeva",Unresolved,,L,TRO,50206550,,"Ochr. Fitos. Fitogeogr.","393","393","1929",
kew-21748,A,Betulaceae,,Betula,×,"sukatschewii",,"","Soczava",Unresolved,,L,WCSP,21748,77103256-1,"Ochr. Fitos. Fitogeogr.","393","","1929",
kew-21749,A,Betulaceae,,Betula,,"sunanensis",,"","Y.J.Zhang",Accepted,,H,WCSP,21749,968886-1,"Bull. Bot. Res., Harbin","13: 68","","1993",
kew-21750,A,Betulaceae,,Betula,,"szaferi",,"","Jent.-Szaf. ex Staszk.",Synonym,,H,WCSP,21750,,"Acta Soc. Bot. Poloniae","55: 364","","1986",kew-21593
kew-21751,A,Betulaceae,,Betula,,"szechuanica",,"","(C.K.Schneid.) C.-A.Jansson",Accepted,,H,WCSP,21751,107906-1,"Acta Horti Gothob.","25: 113","","1962",
kew-21752,A,Betulaceae,,Betula,,"tadzhikistanica",,"","V.N.Vassil.",Accepted,,H,WCSP,21752,107907-1,"Bot. Zhurn. (Moscow & Leningrad)","48: 903","","1963",
kew-21753,A,Betulaceae,,Betula,,"talassica",,"","Poljakov",Synonym,,H,WCSP,21753,957738-1,"Byull. Glavn. Bot. Sada","6: 54","","1950",kew-21582
kew-21754,A,Betulaceae,,Betula,,"tatewakiana",,"","M.Ohki & S.Watan.",Synonym,,H,WCSP,21754,107908-1,"J. Jap. Bot.","34: 329","","1959",kew-21543
kew-21755,A,Betulaceae,,Betula,,"tauschii",,"","(Regel) Koidz.",Synonym,,H,WCSP,21755,107909-1,"Fl. Symb. Orient.-Asiat.","35","","1930",kew-21604
kew-342862,A,Betulaceae,,Betula,,"tauschii",var.,"cuneifolia","(Nakai) Nemoto",Synonym,,L,WCSP,342862,,"Fl. Japan, Suppl.","125","","1936",kew-342865
kew-342871,A,Betulaceae,,Betula,,"tauschii",var.,"kamtschatica","(Regel) Koidz.",Synonym,,L,WCSP,342871,,"Fl. Symb. Orient.-Asiat.","35","","1930",kew-21607
kew-342859,A,Betulaceae,,Betula,,"tauschii",f.,"laciniata","Miyabe & Tatew.",Synonym,,L,WCSP,342859,,"Fl. Hokkaido","4: 464","","1934",kew-342865
kew-342857,A,Betulaceae,,Betula,,"tauschii",var.,"pluricostata","(H.J.P.Winkl.) Koidz.",Synonym,,L,WCSP,342857,,"Fl. Symb. Orient.-Asiat.","35","","1930",kew-342865
kew-21756,A,Betulaceae,,Betula,,"terrae-novae",,"","Fernald",Synonym,,H,WCSP,21756,32252-2,"Rhodora","47: 326","","1945",kew-21488
kew-21757,A,Betulaceae,,Betula,,"tessingolica",,"","P.A.Baranov",Synonym,,H,WCSP,21757,,"Trudy Mongol'sk. Komiss.","14: 1-45","","1934",kew-21492
kew-21758,A,Betulaceae,,Betula,,"tianschanica",,"","Rupr.",Accepted,,H,WCSP,21758,295215-1,"Sert. Tiansch.","72","","1869",
kew-21759,A,Betulaceae,,Betula,,"tianschanica",subsp.,"margusarica","(V.N.Vassil.) Ovcz.",Synonym,,L,WCSP,21759,,"in Fl. Tadzhikskoi SSR","3: 139","","1968",kew-21478
tro-50271320,A,Betulaceae,,Betula,,"tilliifolia",,"","Laest.",Unresolved,,L,TRO,50271320,,"Bot. Not.","!856: 106","106","1857",
kew-21761,A,Betulaceae,,Betula,,"tiulinae",,"","V.N.Vassil.",Synonym,,H,WCSP,21761,107912-1,"Trudy Inst. For. Acad. Sci. URSS","37: 128","","1958",kew-21582
kew-21762,A,Betulaceae,,Betula,,"tomentosa",,"","Reitter & Abeleven",Synonym,,H,WCSP,21762,,"Abb. Deut. Holz-Art.","1: 17","","1805",kew-21636
kew-21763,A,Betulaceae,,Betula,,"torfacea",,"","Schleich.",Synonym,,H,WCSP,21763,295218-1,"Cat. Pl. Helv.","ed. 4: 9","","1821",kew-21636
kew-21764,A,Betulaceae,,Betula,,"tortuosa",,"","Ledeb.",Synonym,,H,WCSP,21764,295219-1,"Fl. Ross.","3: 652","","1850",kew-21659
kew-386846,A,Betulaceae,,Betula,,"tortuosa",var.,"pubescens","Regel",Synonym,,L,WCSP,386846,,"Nouv. Mém. Soc. Imp. Naturalistes Moscou","13(2): 93","","1861",kew-21659
kew-21766,A,Betulaceae,,Betula,,"transbaicalensis",,"","V.N.Vassil.",Synonym,,H,WCSP,21766,107915-1,"Trudy Inst. For. Acad. Sci. URSS","37: 129","","1958",kew-21582
kew-21767,A,Betulaceae,,Betula,,"transcaucasica",,"","V.N.Vassil.",Synonym,,H,WCSP,21767,107916-1,"Spisok Rast. Gerb. Fl. S.S.S.R. Bot. Inst. Vsesoyuzn. Akad. Nauk","18: 43","","1970",kew-21456
kew-21768,A,Betulaceae,,Betula,,"transsilvanica",,"","Schur",Unresolved,,L,WCSP,21768,295220-1,"Verh. Mitth. Siebenbürg. Vereins Naturwiss. Hermannstadt","4: 68","","1853",
tro-50007084,A,Betulaceae,,Betula,,"trichogemma",,"","(Hu ex P.C. Li) T. Hong",Synonym,,M,TRO,50007084,,"Silva Sin.","2: 2133","2133","1985",kew-21622
kew-21769,A,Betulaceae,,Betula,,"tricholepidea",,"","Kindb.",Synonym,,H,WCSP,21769,107917-1,"Bot. Not.","1909: 118","","1909",kew-21649
kew-469167,A,Betulaceae,,Betula,,"tricholepidea",subsp.,"stenoptera","Kindb.",Synonym,,L,WCSP,469167,,"Bot. Not.","1909: 118","","1909",kew-21649
kew-21770,A,Betulaceae,,Betula,,"triphylla",,"","Thunb.",Unresolved,,L,WCSP,21770,295221-1,"Betula","12","","1807",
kew-21771,A,Betulaceae,,Betula,,"tristis",,"","Dippel",Synonym,Invalid,H,WCSP,21771,295223-1,"Handb. Laubholzk.","2: 174","","1891",kew-21582
kew-21772,A,Betulaceae,,Betula,,"tristis",,"","Wormsk. ex Link",Synonym,Invalid,H,WCSP,21772,295222-1,"Enum. Hort. Berol. Alt.","2: 401","","1822",kew-466797
kew-21773,A,Betulaceae,,Betula,,"tundrarum",,"","Perfil.",Synonym,,H,WCSP,21773,,"Bot. Zhurn. (Moscow & Leningrad)","48: 1139","","1963",kew-21505
kew-21774,A,Betulaceae,,Betula,,"turfosa",,"","Weigel ex Rchb.",Synonym,,H,WCSP,21774,295224-1,"Fl. Germ. Excurs.","174","","1831",kew-21543
kew-21775,A,Betulaceae,,Betula,,"turkestanica",,"","Litv.",Accepted,,H,WCSP,21775,107919-1,"Trudy Bot. Muz. Imp. Akad. Nauk","12: 90","","1914",
kew-21776,A,Betulaceae,,Betula,,"turunica",,"","P.A.Baranov",Synonym,,H,WCSP,21776,,"Trudy Mongol'sk. Komiss.","14: 1-45","","1934",kew-21492
kew-21777,A,Betulaceae,,Betula,,"tuturinii",,"","V.N.Vassil.",Accepted,,H,WCSP,21777,107921-1,"Bot. Zhurn. (Moscow & Leningrad)","48: 905","","1963",
kew-21778,A,Betulaceae,,Betula,,"uber",,"","(Ashe) Fernald",Synonym,,H,WCSP,21778,32254-2,"Rhodora","47: 325","","1945",kew-21450
kew-21779,A,Betulaceae,,Betula,×,"uliginosa",,"","Dugle",Accepted,,H,WCSP,21779,324786-2,"Canad. J. Bot.","44: 951","","1966",
kew-21780,A,Betulaceae,,Betula,,"ulmifolia",,"","Siebold & Zucc.",Synonym,,H,WCSP,21780,295225-1,"Abh. Math.-Phys. Cl. Königl. Sächs. Ges. Wiss.","4(3): 228","","1846",kew-21355
kew-21781,A,Betulaceae,,Betula,,"ulmifolia",var.,"costata","(Trautv.) Regel",Synonym,,L,WCSP,21781,,"Bull. Soc. Imp. Naturalistes Moscou","38(2): 414","","1865",kew-21236
kew-21782,A,Betulaceae,,Betula,,"ulmifolia",var.,"glandulosa","H.J.P.Winkl.",Synonym,,L,WCSP,21782,,"Pflanzenr.","IV, 61: 64","","1904",kew-21280
kew-21783,A,Betulaceae,,Betula,,"ulmifolia",var.,"sericea","H.J.P.Winkl.",Synonym,,L,WCSP,21783,,"Pflanzenr.","IV, 61: 64","","1904",kew-21355
kew-21784,A,Betulaceae,,Betula,,"ulmifolia",var.,"subcordata","(Regel) H.J.P.Winkl.",Synonym,,L,WCSP,21784,,"Pflanzenr.","IV, 61: 64","","1904",kew-21355
kew-21786,A,Betulaceae,,Betula,×,"ungavensis",,"","Lepage",Synonym,,H,WCSP,21786,306930-2,"Naturaliste Canad.","103: 226","","1976",kew-21370
kew-21787,A,Betulaceae,,Betula,,"urticifolia",,"","(Spach) Regel",Synonym,,H,WCSP,21787,295227-1,"Novye Mem. Moskovsk. Obshch. Isp. Prir.","13: 115","","1861",kew-21582
kew-21789,A,Betulaceae,,Betula,,"uschkanensis",,"","Sukaczev",Synonym,Invalid,H,WCSP,21789,,"Uschnanyi Proikh. Baikala","186","","1952",kew-21582
kew-21790,A,Betulaceae,,Betula,×,"utahensis",,"","Britton",Accepted,,H,WCSP,21790,32255-2,"Bull. Torrey Bot. Club","31: 165","","1904",
tro-3600117,A,Betulaceae,,Betula,×,"utahensis",,"","Dugle",Unresolved,,L,TRO,3600117,,"Canad. J. Bot.","44: 972","972","1966",
kew-21791,A,Betulaceae,,Betula,,"utilis",,"","D.Don",Accepted,,H,WCSP,21791,295229-1,"Prodr. Fl. Nepal.","58","","1825",
kew-21792,A,Betulaceae,,Betula,,"utilis",var.,"glandulifera","Regel",Synonym,,L,WCSP,21792,,"Prodr.","16(2): 177","","1868",kew-21791
kew-21793,A,Betulaceae,,Betula,,"utilis",var.,"jacquemontii","(Spach) H.J.P.Winkl.",Accepted,,L,WCSP,21793,,"Pflanzenr.","IV, 61: 62","","1904",
kew-21794,A,Betulaceae,,Betula,,"utilis",subsp.,"jacquemontii","(Spach) Kitam.",Synonym,,L,WCSP,21794,,"Pl. West Pak. Afgh.","37","","1964",kew-21793
kew-21795,A,Betulaceae,,Betula,,"utilis",var.,"latifolia","Regel",Synonym,,L,WCSP,21795,,"Prodr.","16(2): 177","","1868",kew-21791
kew-21796,A,Betulaceae,,Betula,,"utilis",subsp.,"occidentalis","Kitam.",Synonym,,L,WCSP,21796,,"Pl. West Pak. Afgh.","37","","1964",kew-21797
kew-21797,A,Betulaceae,,Betula,,"utilis",var.,"occidentalis","(Kitam.) Ashburner & A.D.Schill.",Accepted,,L,WCSP,21797,924081-1,"Plantsman","7: 121","","1985",
kew-21799,A,Betulaceae,,Betula,,"utilis",var.,"sinensis","(Franch.) H.J.P.Winkl.",Synonym,,L,WCSP,21799,,"Pflanzenr.","IV, 61: 62","","1904",kew-21133
kew-21801,A,Betulaceae,,Betula,,"utilis",var.,"utilis","",Synonym,,L,WCSP,21801,,"Unknown","","","",kew-21791
kew-21802,A,Betulaceae,,Betula,,"vassiljevii",,"","Dylis",Synonym,,H,WCSP,21802,,"Byull. Moskovsk. Obshch. Isp. Prir., Otd. Biol.","n.s., 55(6): 65","","1950",kew-21438
tro-3600349,A,Betulaceae,,Betula,,"vassiljevii",,"","Dyl.",Synonym,,M,TRO,3600349,,"?","","","",kew-21797
kew-21803,A,Betulaceae,,Betula,,"velutina",,"","V.N.Vassil.",Synonym,,H,WCSP,21803,107925-1,"Bot. Zhurn. S.S.S.R.","27: 12","","1942",kew-21438
kew-21804,A,Betulaceae,,Betula,,"verrucosa",,"","Ehrh.",Synonym,,H,WCSP,21804,,"Beitr. Naturk.","5: 161","","1790",kew-21582
kew-469159,A,Betulaceae,,Betula,,"verrucosa",subsp.,"ambigua","Hampe ex Kindb.",Synonym,,L,WCSP,469159,,"Bot. Not.","1909: 115","","1909",kew-21582
kew-21805,A,Betulaceae,,Betula,,"verrucosa",var.,"arbuscula","(Fr.) H.J.P.Winkl.",Synonym,,L,WCSP,21805,,"Pflanzenr.","IV, 61: 77","","1904",kew-21582
kew-21806,A,Betulaceae,,Betula,,"verrucosa",f.,"bircalensis","Mela",Synonym,,L,WCSP,21806,77068785-1,"Lyhk. Kasv.","117","","1877",kew-21582
tro-50271201,A,Betulaceae,,Betula,,"verrucosa",var.,"bircalensis","Mela",Synonym,,L,TRO,50271201,,"?","","","",kew-21582
kew-469160,A,Betulaceae,,Betula,,"verrucosa",subsp.,"borealis","Kindb.",Synonym,,L,WCSP,469160,,"Bot. Not.","1909: 115","","1909",kew-21582
kew-341945,A,Betulaceae,,Betula,,"verrucosa",var.,"dalecarlica","(L.f.) Nyman",Synonym,,L,WCSP,341945,,"Consp. Fl. Eur.","Suppl. 2: 282","","1890",kew-21582
kew-376437,A,Betulaceae,,Betula,,"verrucosa",f.,"dalecarlica","(L.f.) H.J.P.Winkl.",Synonym,,L,WCSP,376437,,"Pflanzenr.","IV, 61: 76","","1904",kew-21582
tro-50271204,A,Betulaceae,,Betula,,"verrucosa",f.,"dalecarlica","L. f.",Synonym,,L,TRO,50271204,,"Suppl. Pl.","416","416","1781",kew-21582
kew-21808,A,Betulaceae,,Betula,,"verrucosa",f.,"elegans","Dippel",Synonym,,L,WCSP,21808,,"Handb. Laubholzk.","2: 166","","1891",kew-21582
kew-21809,A,Betulaceae,,Betula,,"verrucosa",f.,"expansa","Regel",Synonym,,L,WCSP,21809,,"Nouv. Mém. Soc. Imp. Naturalistes Moscou","13: 76","","1861",kew-21582
kew-469158,A,Betulaceae,,Betula,,"verrucosa",subsp.,"fallax","Kindb.",Synonym,,L,WCSP,469158,,"Bot. Not.","1909: 115","","1909",kew-21582
kew-21810,A,Betulaceae,,Betula,,"verrucosa",f.,"fastigiata","K.Koch",Synonym,,L,WCSP,21810,,"Dendrologie","2(1): 657","","1872",kew-21582
kew-469157,A,Betulaceae,,Betula,,"verrucosa",var.,"frutescens","Kindb.",Synonym,,L,WCSP,469157,,"Bot. Not.","1909: 115","","1909",kew-21582
kew-340834,A,Betulaceae,,Betula,,"verrucosa",var.,"hybrida","(Blom) Nyman",Synonym,,L,WCSP,340834,,"Consp. Fl. Eur.","672","","1881",kew-21582
kew-342852,A,Betulaceae,,Betula,,"verrucosa",var.,"japonica","(Miq.) A.Henry",Synonym,,L,WCSP,342852,,"Trees Great Britain","4: 967","","1909",kew-342865
kew-469156,A,Betulaceae,,Betula,,"verrucosa",var.,"laciniata","Kindb.",Synonym,,L,WCSP,469156,,"Bot. Not.","1909: 115","","1909",kew-21582
kew-21812,A,Betulaceae,,Betula,,"verrucosa",var.,"lapponica","Lindq.",Synonym,,L,WCSP,21812,,"Svensk Bot. Tidskr.","41: 62","","1947",kew-21582
kew-21813,A,Betulaceae,,Betula,,"verrucosa",f.,"lobata","(Regel) Anders ex H.J.P.Winkl.",Synonym,,L,WCSP,21813,,"Pflanzenr.","IV, 61: 77","","1904",kew-21582
kew-341946,A,Betulaceae,,Betula,,"verrucosa",var.,"lobulata","(Kit.) Nyman",Synonym,,L,WCSP,341946,,"Consp. Fl. Eur.","Suppl. 2: 282","","1890",kew-21582
kew-21814,A,Betulaceae,,Betula,,"verrucosa",var.,"microphylla","(Wallr.) Fiek",Synonym,,L,WCSP,21814,,"Fl. Schlesien","399","","1891",kew-21582
kew-21815,A,Betulaceae,,Betula,,"verrucosa",var.,"obscura","(Kotula ex Fiek) Gürke",Synonym,,L,WCSP,21815,,"Pl. Eur.","2: 48","","1897",kew-21167
kew-21816,A,Betulaceae,,Betula,,"verrucosa",subsp.,"obscura","(Kotula ex Fiek) Á.Löve & D.Löve",Synonym,,L,WCSP,21816,,"Bot. Not.","114: 51","","1961",kew-21167
kew-340833,A,Betulaceae,,Betula,,"verrucosa",var.,"odorata","Nyman",Synonym,,L,WCSP,340833,,"Consp. Fl. Eur.","672","","1881",kew-21582
kew-21817,A,Betulaceae,,Betula,,"verrucosa",subsp.,"oycowiensis","(Besser) Nyman",Synonym,,L,WCSP,21817,,"Consp. Fl. Eur.","672","","1881",kew-21593
kew-21818,A,Betulaceae,,Betula,,"verrucosa",var.,"oycowiensis","(Besser) H.J.P.Winkl.",Synonym,,L,WCSP,21818,,"Pflanzenr.","IV, 61: 77","","1904",kew-21593
kew-452499,A,Betulaceae,,Betula,,"verrucosa",var.,"platyphylla","(Sukaczev) Lindq.",Synonym,,L,WCSP,452499,,"Acta Horti Gothob.","25: 124","","1962",kew-21604
kew-21819,A,Betulaceae,,Betula,,"verrucosa",var.,"saxatilis","Lindq.",Synonym,,L,WCSP,21819,,"Svensk Bot. Tidskr.","41: 66","","1947",kew-21582
kew-21821,A,Betulaceae,,Betula,,"victoris",,"","E.S.Husseinov",Synonym,,H,WCSP,21821,,"Novosti Sist. Vyssh. Rast.","8: 128","","1971",kew-21688
kew-21822,A,Betulaceae,,Betula,,"viminea",,"","Kindb.",Synonym,,H,WCSP,21822,107927-1,"Bot. Not.","1909: 120","","1909",kew-21505
kew-469169,A,Betulaceae,,Betula,,"viminea",var.,"serrulata","Kindb.",Synonym,,L,WCSP,469169,,"Bot. Not.","1909: 120","","1909",kew-21505
kew-21823,A,Betulaceae,,Betula,,"virgata",,"","Salisb.",Synonym,Illegitimate,H,WCSP,21823,295231-1,"Prodr. Stirp. Chap. Allerton","395","","1796",kew-21636
kew-21824,A,Betulaceae,,Betula,,"virgultosa",,"","Fr. ex Regel",Synonym,,H,WCSP,21824,295232-1,"Novye Mem. Moskovsk. Obshch. Isp. Prir.","13: 115","","1861",kew-21582
kew-21825,A,Betulaceae,,Betula,,"viridis",,"","Chaix",Synonym,,H,WCSP,21825,107928-1,"Hist. Pl. Dauphiné","1: 374","","1786",kew-6257
tro-3600419,A,Betulaceae,,Betula,,"viridis",,"","Vill.",Synonym,,M,TRO,3600419,,"Hist. Pl. Dauphiné","3(1): 789","789","1789",kew-6257
kew-21826,A,Betulaceae,,Betula,,"vladimirii",,"","V.N.Vassil.",Synonym,,H,WCSP,21826,107929-1,"Trudy Inst. For. Acad. Sci. URSS","37: 125","","1958",kew-21582
kew-221343,A,Betulaceae,,Betula,×,"vologdensis",,"","Tzvelev",Accepted,,H,WCSP,221343,50426225-2,"Novosti Sist. Vyssh. Rast.","34: 70","","2002",
kew-21827,A,Betulaceae,,Betula,,"vulcani",,"","H.Lév. & Vaniot",Unresolved,,L,WCSP,21827,295234-1,"Bull. Soc. Bot. France","51: 423","","1907",
kew-21828,A,Betulaceae,,Betula,,"wilsoniana",,"","C.K.Schneid.",Synonym,,H,WCSP,21828,107930-1,"Ill. Handb. Laubholzk.","2: 882","","1912",kew-21462
kew-21829,A,Betulaceae,,Betula,,"wilsonii",,"","Bean",Synonym,,H,WCSP,21829,107931-1,"Bull. Misc. Inform. Kew","1914: 30","","1914",kew-21622
kew-21830,A,Betulaceae,,Betula,,"wiluica",,"","Sukaczev",Synonym,Invalid,H,WCSP,21830,107932-1,"Trudy Komiss. Izuch. Yakutsk. Avton. S.S.R.","10: 367","","1929",kew-21508
kew-21831,A,Betulaceae,,Betula,×,"winteri",,"","Dugle",Accepted,,H,WCSP,21831,324793-2,"Canad. J. Bot.","44: 986","","1966",
kew-21832,A,Betulaceae,,Betula,,"wutaica",,"","Mayr",Synonym,,H,WCSP,21832,107934-1,"Fremdländ. Wald-Parkbäume","450","","1906",kew-21251
kew-346090,A,Betulaceae,,Betula,,"wuyiensis",,"","J.B.Xiao",Accepted,,H,WCSP,346090,77080893-1,"J. Nanjing Forest Univ., Nat. Sci. Ed.","30: 125","","2006",
kew-21833,A,Betulaceae,,Betula,,"yoshimurae",,"","Miyabe & Tatew.",Synonym,,H,WCSP,21833,107935-1,"Trans. Sapporo Nat. Hist. Soc.","15: 129","","1938",kew-21543
kew-21834,A,Betulaceae,,Betula,×,"zimpelii",,"","Junge",Accepted,,H,WCSP,21834,295235-1,"Allg. Bot. Z. Syst.","10: 153","","1904",
kew-21835,A,Betulaceae,,Betula,,"zinserlingii",,"","V.N.Vassil.",Accepted,,H,WCSP,21835,,"Novosti Sist. Vyssh. Rast.","7: 117","","1970 publ. 1971",
kew-21836,A,Betulaceae,,Betula,,"zyzyphifolia",,"","C.Wang & S.L.Tung",Synonym,,H,WCSP,21836,897063-1,"Bull. Bot. Res., Harbin","1(1-2): 134","","1981",kew-21543