Betula pubescens (Downy Birch)
| Site | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. | |
|---|---|---|---|---|---|---|
| Tryvasshøgda | Oslo, Norway | 3 | 1 | 0 | 2006-06-20 | |
| Trøym | Buskerud, Norway | 5 | 1 | 0 | 2022-08-25 | |
| tun og foringsbrett | Buskerud, Norway | 1 | 1 | 0 | 2011-04-17 | |
| Tuneset | Møre og Romsdal, Norway | 1 | 1 | 0 | 2008-04-08 | |
| Tunneset | Troms, Norway | 1 | 1 | 0 | 2007-11-15 | |
| Tuntreet | Trøndelag, Norway | 7 | 1 | 0 | 2008-04-30 | |
| Tveita | Oslo, Norway | 1 | 1 | 0 | 2007-04-29 | |
| Tveitogrend | Telemark, Norway | 1 | 1 | 0 | 2020-05-06 | |
| Tveitsund | Telemark, Norway | 3 | 1 | 0 | 2006-06-20 | |
| Tyholt | Trøndelag, Norway | 2 | 1 | 0 | 2023-05-28 | |
| Tylldalen | Innlandet, Norway | 10 | 1 | 4 | 2020-05-25 | |
| Tynset | Innlandet, Norway | 1 | 1 | 0 | 2007-04-28 | |
| Tyristrand | Buskerud, Norway | 3 | 1 | 0 | 2003-04-24 | |
| Tyrivegen 29;Reinsvoll | Innlandet, Norway | 1 | 1 | 0 | 2019-04-06 | |
| Tyssøy | Vestland, Norway | 1 | 1 | 0 | 2006-05-08 | |
| Tytebærhaugen | Møre og Romsdal, Norway | 1 | 1 | 0 | 2008-05-26 | |
| Tømmerlifeltet | Innlandet, Norway | 1 | 1 | 0 | 2008-04-22 | |
| Tønsberg sentrum | Vestfold, Norway | 4 | 1 | 0 | 2001-05-25 | |
| Tønsnes | Troms, Norway | 3 | 1 | 0 | 2017-06-10 | |
| Tøyenhaugen | Akershus, Norway | 1 | 1 | 0 | 2007-08-04 | |
| Ullern | Buskerud, Norway | 1 | 1 | 0 | 2008-05-05 | |
| Ullerudåsen | Akershus, Norway | 2 | 1 | 0 | 2012-03-31 | |
| Ulriken skole | Vestland, Norway | 9 | 1 | 0 | 2022-09-01 | |
| Ulvang | Nordland, Norway | 1 | 1 | 0 | 2007-05-09 | |
| Undredal | Vestland, Norway | 3 | 1 | 0 | 2010-05-02 | |
| Ustaoset | Buskerud, Norway | 1 | 1 | 0 | 2008-06-23 | |
| Ustaoset | Buskerud, Norway | 8 | 1 | 0 | 2016-06-01 | |
| Uteklasserommet | Møre og Romsdal, Norway | 1 | 1 | 0 | 2007-08-23 | |
| Uttian | Trøndelag, Norway | 2 | 1 | 0 | 2007-04-28 | |
| Vadheim | Vestland, Norway | 3 | 1 | 0 | 2003-04-19 | |
| Vadmyra | Vestland, Norway | 3 | 1 | 0 | 2012-04-20 | |
| Vadset | Møre og Romsdal, Norway | 1 | 1 | 0 | 2008-04-23 | |
| Vaksvik | Møre og Romsdal, Norway | 5 | 1 | 0 | 2023-04-18 | |
| Valaskjold | Østfold, Norway | 1 | 1 | 0 | 2003-05-13 | |
| Valle | Agder, Norway | 1 | 1 | 0 | 2004-04-22 | |
| Vang barne- og ungdomsskolen | Innlandet, Norway | 1 | 1 | 1 | 2022-09-21 | |
| Vang barne- og ungdomsskule | Innlandet, Norway | 1 | 1 | 0 | 2015-09-07 | |
| Vanglivegen 26 | Innlandet, Norway | 1 | 1 | 0 | 2011-05-02 | |
| Vanvikan | Trøndelag, Norway | 1 | 1 | 0 | 2008-04-25 | |
| Vardetangen | Vestland, Norway | 1 | 1 | 0 | 2018-04-23 | |
| Vardetangen | Vestland, Norway | 8 | 1 | 0 | 2018-04-23 | |
| Vassbotn | Møre og Romsdal, Norway | 1 | 1 | 0 | 2007-05-01 | |
| vassenden | Innlandet, Norway | 1 | 1 | 0 | 2019-09-10 | |
| Vassetsætra | Møre og Romsdal, Norway | 3 | 1 | 0 | 2009-09-04 | |
| Vasslivatnet | Rogaland, Norway | 1 | 1 | 0 | 1994-11-24 | |
| Vassmoen, Lauvøya | Trøndelag, Norway | 8 | 1 | 0 | 2023-05-28 | |
| Vassøy | Rogaland, Norway | 1 | 1 | 0 | 2014-03-22 | |
| Vatne | Rogaland, Norway | 1 | 1 | 0 | 2007-04-15 | |
| Vats skule | Buskerud, Norway | 1 | 1 | 0 | 2003-06-04 | |
| Vaula | Rogaland, Norway | 1 | 1 | 0 | 2022-10-18 |