| Betula aetnensis Raf. ex J.Presl & C.Presl |
wfo-0000330309 |
| Betula alba f. dalecarlica (L.f.) Regel |
wfo-0000330479 |
| Betula alba f. laciniata (de Vos) Dippel |
wfo-0000840879 |
| Betula alba f. lobata Regel |
wfo-0000330587 |
| Betula alba subsp. arborescens Wallr. |
wfo-0000807380 |
| Betula alba subsp. verrucosa (Ehrh.) Regel |
wfo-0000804433 |
| Betula alba var. aetherea Wallr. |
wfo-0000330396 |
| Betula alba var. arbuscula Fr. |
wfo-0000330407 |
| Betula alba var. atropurpurea Dippel |
wfo-0000840880 |
| Betula alba var. bircalensis (Mela) Mela |
wfo-0000621549 |
| Betula alba var. carelica Merckl. |
wfo-0000330429 |
| Betula alba var. fastigiata Clemenc. |
wfo-0000341094 |
| Betula alba var. microphylla Wallr. |
wfo-0000330619 |
| Betula alba var. microphylla Wimm. |
wfo-0001274305 |
| Betula alba var. pendula M.E.Jones |
wfo-0000330697 |
| Betula alba var. songarica Dippel |
wfo-0000840878 |
| Betula alba var. urticifolia Spach |
wfo-0000330828 |
| Betula alba var. verrucosa (Ehrh.) Wallr. |
wfo-0000330837 |
| Betula grandifolia var. pubescens Kuzen. |
wfo-0000333149 |
| Betula hippolyti Sukaczev |
wfo-0000333321 |
| Betula laciniata (Wahlenb.) Rchb. |
wfo-0000791728 |
| Betula pendula f. dalecarlica (L.f.) C.K.Schneid. |
wfo-0000839104 |
| Betula pendula f. fastigiata (Clemenc.) Dippel |
wfo-0000341104 |
| Betula pendula subsp. etnensis (Raf.) Zangh. |
wfo-0000840872 |
| Betula pendula var. pendula |
wfo-0000335594 |
| Betula pinnata var. hybrida Lundmark |
wfo-0000335623 |
| Betula platyphylloides V.N.Vassil. |
wfo-0000335770 |
| Betula tristis hort. ex Dippel |
wfo-0000337371 |
| Betula uschkanensis Sukaczev |
wfo-0000337551 |
| Betula verrucosa f. dalecarlica L.f. |
wfo-0001274302 |
| Betula verrucosa f. dalecarlica (L.f.) H.J.P.Winkl. |
wfo-0000839105 |
| Betula verrucosa f. elegans Dippel |
wfo-0000337758 |
| Betula verrucosa f. expansa Regel |
wfo-0000337768 |
| Betula verrucosa f. fastigiata K.Koch |
wfo-0000337780 |
| Betula verrucosa f. lobata (Regel) Anders ex H.J.P.Winkl. |
wfo-0000337812 |
| Betula verrucosa subsp. ambigua Hampe ex Kindb. |
wfo-0000923469 |
| Betula verrucosa subsp. borealis Kindb. |
wfo-0000923470 |
| Betula verrucosa subsp. fallax Kindb. |
wfo-0000923468 |
| Betula verrucosa var. arbuscula (Fr.) H.J.P.Winkl. |
wfo-0000337725 |
| Betula verrucosa var. bircalensis Mela |
wfo-0001274301 |
| Betula verrucosa var. dalecarlica (L.f.) Nyman |
wfo-0000803574 |
| Betula verrucosa var. frutescens Kindb. |
wfo-0000923467 |
| Betula verrucosa var. hybrida (Blom) Nyman |
wfo-0000802440 |
| Betula verrucosa var. laciniata Kindb. |
wfo-0000923466 |
| Betula verrucosa var. lapponica Lindq. |
wfo-0000337801 |
| Betula verrucosa var. lobulata (Kit.) Nyman |
wfo-0000803575 |
| Betula verrucosa var. microphylla (Wallr.) Fiek |
wfo-0000337823 |
| Betula verrucosa var. odorata Nyman |
wfo-0000802439 |
| Betula verrucosa var. saxatilis Lindq. |
wfo-0000337876 |