Betula pubescens (Downy Birch)
| Site | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. | |
|---|---|---|---|---|---|---|
| Bekk ved Fjelltun | Rogaland, Norway | 2 | 1 | 0 | 2022-09-09 | |
| Bekkelaget | Innlandet, Norway | 10 | 1 | 4 | 2022-09-22 | |
| Berge | Telemark, Norway | 1 | 1 | 0 | 2007-04-14 | |
| Bergshaugen 10, 3175 Ramnes | Vestfold, Norway | 5 | 1 | 0 | 2022-09-02 | |
| Bergåsen | Vestfold, Norway | 6 | 1 | 0 | 2022-09-09 | |
| Berkåk | Trøndelag, Norway | 1 | 1 | 0 | 2008-08-26 | |
| Berkåk-Lyngholt | Trøndelag, Norway | 3 | 1 | 0 | 2006-06-20 | |
| Bilitt | Innlandet, Norway | 1 | 1 | 0 | 2007-04-19 | |
| billefjord | Finnmark, Norway | 3 | 1 | 1 | 2013-05-22 | |
| Bioforsk Svanhovd | Finnmark, Norway | 1 | 1 | 0 | 2016-05-16 | |
| Biristrand | Innlandet, Norway | 1 | 1 | 0 | 2007-04-18 | |
| Bjelland oppvekstsenter | Agder, Norway | 1 | 1 | 0 | 2013-05-22 | |
| Bjordal | Vestland, Norway | 1 | 1 | 0 | 2008-09-10 | |
| Bjorøy | Vestland, Norway | 2 | 1 | 0 | 2006-05-09 | |
| Bjørheimsbygd, nedre | Rogaland, Norway | 1 | 1 | 0 | 2007-06-04 | |
| Bjørkan | Trøndelag, Norway | 1 | 1 | 0 | 2007-06-11 | |
| Bjørkelangen | Akershus, Norway | 5 | 1 | 0 | 2024-05-07 | |
| bjørkeskog | Nordland, Norway | 3 | 1 | 0 | 2008-05-13 | |
| Bjørlien skole | Akershus, Norway | 4 | 1 | 0 | 2022-09-05 | |
| Bjørn Wirkolas vei | Finnmark, Norway | 1 | 1 | 1 | 2023-09-12 | |
| Bjørnstad | Innlandet, Norway | 8 | 1 | 0 | 2016-05-14 | |
| Bjørnstad jordet | Telemark, Norway | 1 | 1 | 0 | 2007-04-29 | |
| Bjørset | Møre og Romsdal, Norway | 1 | 1 | 0 | 2009-04-14 | |
| Bleikstranda | Nordland, Norway | 2 | 1 | 0 | 2008-05-06 | |
| Blindern | Oslo, Norway | 3 | 1 | 0 | 2006-06-20 | |
| Blokkhaugen skole | Vestland, Norway | 4 | 1 | 0 | 2009-06-04 | |
| Blokknr 132 | Møre og Romsdal, Norway | 1 | 1 | 0 | 2007-04-24 | |
| Blokknummer 80 | Møre og Romsdal, Norway | 1 | 1 | 0 | 2001-06-14 | |
| blommenholm | Akershus, Norway | 1 | 1 | 0 | 2007-04-19 | |
| Blomsterveien | Akershus, Norway | 1 | 1 | 0 | 2007-04-22 | |
| Blåbærveien | Finnmark, Norway | 1 | 1 | 0 | 2021-06-08 | |
| Bodin 4H-gård | Nordland, Norway | 1 | 1 | 0 | 2008-05-07 | |
| Bodin videregående og Maritime Fagskole | Nordland, Norway | 1 | 1 | 0 | 2021-08-30 | |
| Bodøsjøen | Nordland, Norway | 1 | 1 | 0 | 2021-08-26 | |
| Boknabergsvatnet | Rogaland, Norway | 1 | 1 | 0 | 2003-04-22 | |
| boligområde | Buskerud, Norway | 1 | 1 | 0 | 2013-05-12 | |
| Bolkåsen | Trøndelag, Norway | 25 | 1 | 0 | 2006-12-06 | |
| borge | Telemark, Norway | 1 | 1 | 0 | 2011-05-16 | |
| Borgemarka 75 | Telemark, Norway | 1 | 1 | 0 | 2007-04-14 | |
| Borgen | Akershus, Norway | 2 | 1 | 1 | 2022-09-21 | |
| Borgundnuten/Fjelberg | Vestland, Norway | 4 | 1 | 0 | 2008-05-08 | |
| Borgundskogen | Møre og Romsdal, Norway | 1 | 1 | 0 | 2018-10-16 | |
| Borgøy | Rogaland, Norway | 1 | 1 | 0 | 2007-04-23 | |
| Borkenes | Troms, Norway | 9 | 1 | 0 | 2022-05-18 | |
| Bosted i Moss,Jeløy og Gudbrandsdalen | Østfold, Norway | 1 | 1 | 0 | 2007-04-24 | |
| Brandekleiv | Agder, Norway | 1 | 1 | 0 | 2008-05-08 | |
| Brandsfjord barne- og ungdomsskole | Trøndelag, Norway | 1 | 1 | 0 | 2008-05-14 | |
| Bratsbergkleiva skole | Telemark, Norway | 14 | 1 | 0 | 2020-04-03 | |
| Breibuktnes | Finnmark, Norway | 5 | 1 | 0 | 2005-01-07 | |
| Breistein | Vestland, Norway | 1 | 1 | 0 | 2022-05-05 |