Alnus incana (Grey Alder)
| Site | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. | |
|---|---|---|---|---|---|---|
| Arkavatnet | Rogaland, Norway | 1 | 1 | 0 | 1989-08-28 | |
| Asakmarka | Akershus, Norway | 2 | 1 | 0 | 2003-05-26 | |
| Bakketun | Innlandet, Norway | 4 | 1 | 0 | 2019-04-29 | |
| Bråte skole | Akershus, Norway | 1 | 1 | 0 | 2023-04-13 | |
| Bygdatunet, Granvin | Vestland, Norway | 1 | 1 | 1 | 2022-09-28 | |
| Einang i Homme | Agder, Norway | 1 | 1 | 0 | 2005-08-25 | |
| Enge | Vestland, Norway | 1 | 1 | 0 | 2003-04-13 | |
| Fløyta | Akershus, Norway | 1 | 1 | 0 | 1992-06-12 | |
| Fyresdal Kåsa sør | Telemark, Norway | 1 | 1 | 0 | 2016-03-23 | |
| Fæbydammen | Trøndelag, Norway | 2 | 1 | 0 | 2003-09-12 | |
| Grebstadlia | Møre og Romsdal, Norway | 1 | 1 | 0 | 2010-09-01 | |
| Grønnåsen | Nordland, Norway | 1 | 1 | 0 | 2004-09-13 | |
| Halsa-Holandsfjorden | Nordland, Norway | 1 | 1 | 0 | 2011-04-05 | |
| Hesnes skole | Agder, Norway | 2 | 1 | 0 | 2007-12-05 | |
| Isielva 1 | Akershus, Norway | 1 | 1 | 0 | 2008-10-22 | |
| Jensvollveien 12 | Nordland, Norway | 1 | 1 | 0 | 2021-08-27 | |
| Kjeldevatnet | Vestland, Norway | 31 | 1 | 1 | 2024-05-07 | |
| Kvitblikkvannet | Nordland, Norway | 1 | 1 | 0 | 1990-06-06 | |
| Liaset 3 Lauvskog | Møre og Romsdal, Norway | 1 | 1 | 0 | 2014-09-11 | |
| Myravatnet | Vestland, Norway | 1 | 1 | 0 | 1989-09-14 | |
| Mørkved | Nordland, Norway | 1 | 1 | 0 | 2021-08-26 | |
| Nes Verk rundt | Agder, Norway | 7 | 1 | 0 | 2024-03-09 | |
| Nigard Lien | Telemark, Norway | 2 | 1 | 1 | 2017-04-08 | |
| Nitelva ved Smedstusvingen | Akershus, Norway | 4 | 1 | 0 | 2013-06-07 | |
| Nordli_Ankerveien | Akershus, Norway | 3 | 1 | 0 | 2014-08-27 | |
| Renslotunet | Buskerud, Norway | 2 | 1 | 0 | 2010-05-20 | |
| Samnanger ungdomsskule | Vestland, Norway | 2 | 1 | 2 | 2019-09-17 | |
| Sjøholt | Møre og Romsdal, Norway | 5 | 1 | 0 | 2019-04-22 | |
| Skjetlein vgs - Landskapet på Leinstrand | Trøndelag, Norway | 1 | 1 | 0 | 2014-02-13 | |
| Skranevatnet | Vestland, Norway | 9 | 1 | 1 | 2013-05-30 | |
| skraperudtjern | Oslo, Norway | 1 | 1 | 0 | 2011-09-15 | |
| Storvatnet | Trøndelag, Norway | 1 | 1 | 0 | 2004-08-14 | |
| Torshaug | Trøndelag, Norway | 1 | 1 | 0 | 2003-04-25 | |
| Uranes | Vestland, Norway | 1 | 1 | 0 | 2008-05-04 | |
| Uteklasserommet | Møre og Romsdal, Norway | 1 | 1 | 0 | 2007-09-05 | |
| Vaksvik | Møre og Romsdal, Norway | 3 | 1 | 0 | 2023-04-22 | |
| Vassetsætra | Møre og Romsdal, Norway | 1 | 1 | 0 | 2009-09-04 | |
| Vasslivatnet | Rogaland, Norway | 1 | 1 | 0 | 1994-11-24 | |
| Vestrå | Rogaland, Norway | 1 | 1 | 0 | 2019-03-11 | |
| Vifstadlia | Trøndelag, Norway | 19 | 1 | 0 | 2007-04-20 | |
| Ørskogkvia | Møre og Romsdal, Norway | 1 | 1 | 0 | 2010-06-08 |