Betulaceae
| Site | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. | |
|---|---|---|---|---|---|---|
| Toten Montessoriskole | Innlandet, Norway | 1 | 1 | 0 | 2015-04-20 | |
| Totenvika | Innlandet, Norway | 1 | 1 | 0 | 2007-04-16 | |
| trfjorden | Trøndelag, Norway | 1 | 1 | 0 | 2007-05-20 | |
| Tromsdalen | Troms, Norway | 1 | 1 | 0 | 2007-06-05 | |
| Tromsø | Troms, Norway | 3 | 1 | 0 | 2006-06-20 | |
| Tromsøya | Troms, Norway | 1 | 1 | 0 | 2007-06-05 | |
| Tromsøya | Troms, Norway | 13 | 1 | 0 | 2005-10-27 | |
| Trysil | Innlandet, Norway | 2 | 1 | 1 | 2022-09-22 | |
| 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 | |
| Tunstien 23 | Innlandet, Norway | 1 | 1 | 0 | 2018-04-25 | |
| 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 | |
| Tverlandet | Nordland, Norway | 1 | 1 | 0 | 2021-08-27 | |
| Tyholt | Trøndelag, Norway | 2 | 1 | 0 | 2023-05-28 | |
| Tylldalen | Innlandet, Norway | 11 | 2 | 4 | 2021-05-28 | |
| 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 | |
| Tyssereinane | Vestland, Norway | 2 | 1 | 2 | 2010-04-30 | |
| 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 | |
| Universitetet i Nordland, Campus | Nordland, Norway | 2 | 1 | 1 | 2014-10-10 | |
| Uranes | Vestland, Norway | 1 | 1 | 0 | 2008-05-04 | |
| Ustaoset | Buskerud, Norway | 9 | 2 | 0 | 2016-06-01 | |
| Ustaoset | Buskerud, Norway | 1 | 1 | 0 | 2008-06-23 | |
| Uteklasserommet | Møre og Romsdal, Norway | 2 | 2 | 0 | 2007-09-05 | |
| Uteskole-plassen | Vestfold, Norway | 4 | 2 | 0 | 2010-04-30 | |
| 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 | 13 | 3 | 0 | 2023-04-22 | |
| Valaskjold | Østfold, Norway | 1 | 1 | 0 | 2003-05-13 | |
| Valestrand | Vestland, Norway | 1 | 1 | 0 | 2022-09-12 | |
| Valle | Agder, Norway | 1 | 1 | 0 | 2004-04-22 |