| Betula acuminata Kindb. |
wfo-0000330188 |
| Betula alba L. |
wfo-0000330385 |
| Betula alba subsp. glutinosa (Berher) Holub |
wfo-0000330517 |
| Betula alba var. glabrata (Wahlenb.) Muñoz Garm. & Pedrol |
wfo-0000330508 |
| Betula ambigua Hampe ex Rchb. |
wfo-0000331110 |
| Betula andreji V.N.Vassil. |
wfo-0000331132 |
| Betula aspleniifolia hort. ex Regel |
wfo-0000331200 |
| Betula aurata var. rhombifolia (Tausch) Tzvelev |
wfo-0000341096 |
| Betula aurea Steud. |
wfo-0000331233 |
| Betula baicalia V.N.Vassil. |
wfo-0000331300 |
| Betula borysthenica Klokov |
wfo-0000331460 |
| Betula broccembergensis Bechst. |
wfo-0000331494 |
| Betula callosa Lindq. |
wfo-0001214764 |
| Betula callosa Notø |
wfo-0000331596 |
| Betula canadensis hort. ex K.Koch |
wfo-0000331602 |
| Betula carpatica Waldst. & Kit. ex Willd. |
wfo-0000331624 |
| Betula coriifolia Tausch ex Regel |
wfo-0000331929 |
| Betula dalecarlica L.f. |
wfo-0000332242 |
| Betula glabra Dumort. |
wfo-0000332920 |
| Betula glauca Wender. |
wfo-0000333030 |
| Betula glutinosa Wallr. |
wfo-0000333052 |
| Betula hackelii Opiz ex Steud. |
wfo-0000333248 |
| Betula jacutica V.N.Vassil. |
wfo-0000333688 |
| Betula krylovii G.V.Krylov |
wfo-0000333934 |
| Betula laciniata Thunb. |
wfo-0000333999 |
| Betula lenta Du Roi |
wfo-0000334080 |
| Betula macrostachya Schrad. ex Regel |
wfo-0000334344 |
| Betula major Gilib. |
wfo-0000334352 |
| Betula megaloptera Kindb. |
wfo-0000334491 |
| Betula microdontia Kindb. |
wfo-0000334511 |
| Betula murithii Gaudin ex Regel |
wfo-0000334637 |
| Betula nigricans Wender. |
wfo-0000334928 |
| Betula odorata Bechst. |
wfo-0000335047 |
| Betula ovata K.Koch |
wfo-0000335079 |
| Betula platyodontia Kindb. |
wfo-0000335649 |
| Betula pontica hort. ex Loudon |
wfo-0000335808 |
| Betula pubescens f. columnaris T.Ulvinen |
wfo-0000336060 |
| Betula pubescens f. hibernifolia T.Ulvinen |
wfo-0000336142 |
| Betula pubescens f. rubra T.Ulvinen |
wfo-0000336246 |
| Betula pubescens var. appressa P.Kallio & Y.Mäkinen |
wfo-0000335996 |
| Betula rhombifolia Tausch |
wfo-0001274304 |
| Betula rotundata Beck |
wfo-0000336683 |
| Betula sajanensis V.N.Vassil. |
wfo-0000336768 |
| Betula sokolowii Hort.Petrop. ex Regel |
wfo-0000337016 |
| Betula stenocarpa Kindb. |
wfo-0000337037 |
| Betula subarctica N.I.Orlova |
wfo-0000337077 |
| Betula subarctica var. pojarkovae Tzvelev |
wfo-0000341106 |
| Betula subodorata Kindb. |
wfo-0000337098 |
| Betula tomentosa Reitter & Abel. |
wfo-0000337282 |
| Betula torfacea Schleich. |
wfo-0000337292 |
| Betula tricholepidea Kindb. |
wfo-0000337350 |
| Betula urticifolia Regel |
wfo-0000337531 |
| Betula virgata Salisb. |
wfo-0000337917 |