Alnus glutinosa (Black Alder)
| Site | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. | |
|---|---|---|---|---|---|---|
| Almåselv | Vestland, Norway | 1 | 1 | 0 | 2015-08-31 | |
| Arboretet | Vestland, Norway | 1 | 1 | 0 | 2007-05-08 | |
| Aurdalslia | Vestland, Norway | 2 | 1 | 2 | 2013-05-28 | |
| Bjørkelangen | Akershus, Norway | 2 | 1 | 0 | 2021-06-15 | |
| Elverhøy | Rogaland, Norway | 1 | 1 | 0 | 2005-08-31 | |
| Gjellumvannet | Akershus, Norway | 1 | 1 | 0 | 2005-05-23 | |
| Griggastemma | Vestland, Norway | 1 | 1 | 0 | 2015-09-01 | |
| Heer | Akershus, Norway | 1 | 1 | 0 | 2024-03-15 | |
| Hostadvatnet | Møre og Romsdal, Norway | 2 | 1 | 0 | 1993-06-16 | |
| Hustoft gnr. 150/4 | Rogaland, Norway | 8 | 1 | 0 | 2024-05-06 | |
| Hølaløkka | Oslo, Norway | 1 | 1 | 0 | 2014-03-18 | |
| Illestadvatnet | Vestfold, Norway | 1 | 1 | 1 | 2010-09-30 | |
| Jørpeland | Rogaland, Norway | 1 | 1 | 0 | 2022-09-08 | |
| Kirkebygden barne- og ungdomsskole | Akershus, Norway | 2 | 1 | 0 | 2022-09-15 | |
| Kjeldevatnet | Vestland, Norway | 27 | 1 | 3 | 2024-05-07 | |
| Kolbjørnviksjøen | Østfold, Norway | 1 | 1 | 0 | 1989-09-01 | |
| Lutvann - badeplass i nordre ende | Oslo, Norway | 1 | 1 | 0 | 2013-06-20 | |
| Nisterud tjern | Telemark, Norway | 1 | 1 | 0 | 2005-09-19 | |
| Nitelva ved Smedstusvingen | Akershus, Norway | 2 | 1 | 0 | 2013-06-07 | |
| Området kring Nordstranda skule | Vestland, Norway | 1 | 1 | 1 | 2014-03-04 | |
| Ortunvannet | Vestland, Norway | 1 | 1 | 0 | 2016-04-21 | |
| Oscarsborg | Akershus, Norway | 1 | 1 | 2 | 2022-10-17 | |
| Skotterud | Innlandet, Norway | 1 | 1 | 0 | 2022-09-01 | |
| Skotterud skole | Innlandet, Norway | 1 | 1 | 2 | 2022-10-31 | |
| Skranevatnet | Vestland, Norway | 11 | 1 | 2 | 2013-05-30 | |
| Skåland | Rogaland, Norway | 1 | 1 | 1 | 2012-06-11 | |
| Tunstien 23 | Innlandet, Norway | 1 | 1 | 0 | 2018-04-25 |