Tussilago farfara (Colt's-foot)
| Participant | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. |
|---|---|---|---|---|---|
| Alvøen skole | Vestland, Norway | 106 | 1 | 6 | 2021-05-20 |
| Bratsbergkleiva skole | Telemark, Norway | 43 | 1 | 1 | 2020-04-03 |
| Haukås skole | Vestland, Norway | 38 | 1 | 0 | 2022-05-05 |
| Uregistrert vårsjekker | Vestland, Norway | 37 | 1 | 0 | 2008-04-17 |
| Unni R. Bjerke Gamst | Troms, Norway | 30 | 1 | 0 | 2013-03-17 |
| Kalvatræet skole | Vestland, Norway | 28 | 1 | 0 | 2010-05-19 |
| Flaktveit skole | Vestland, Norway | 23 | 1 | 8 | 2023-04-24 |
| Tylldalen skole | Innlandet, Norway | 21 | 1 | 0 | 2024-04-09 |
| Rune Nilsen | Agder, Norway | 20 | 1 | 2 | 2024-03-09 |
| Linda Jasmin Skålvik | Trøndelag, Norway | 20 | 1 | 0 | 2024-04-13 |
| Ranvik ungdomsskole | Vestfold, Norway | 20 | 1 | 0 | 2015-05-26 |
| Marit Hansen | Trøndelag, Norway | 19 | 1 | 0 | 2024-03-31 |
| Gunvor Hustoft | Rogaland, Norway | 18 | 1 | 0 | 2024-03-28 |
| Charlotte Bakke | Telemark, Norway | 18 | 1 | 0 | 2024-04-07 |
| Batnfjord skule | Møre og Romsdal, Norway | 17 | 1 | 4 | 2020-04-22 |
| John Skjelseth | Innlandet, Norway | 16 | 1 | 0 | 2024-04-01 |
| Martin Andreas Ressem Målø | Trøndelag, Norway | 15 | 1 | 0 | 2024-04-14 |
| Velle skule | Møre og Romsdal, Norway | 14 | 1 | 0 | 2008-04-16 |
| Asak skole | Akershus, Norway | 14 | 1 | 0 | 2012-03-22 |
| Frode Øen | Buskerud, Norway | 13 | 1 | 0 | 2019-04-24 |
| Elly Hardy Bakstad | Vestfold, Norway | 13 | 1 | 0 | 2016-03-20 |
| Meldal Ungdomsskole/løkken barneskole | Trøndelag, Norway | 13 | 1 | 0 | 2016-04-08 |
| Gol skule | Buskerud, Norway | 13 | 1 | 0 | 2010-05-28 |
| Kaldfjord skole | Troms, Norway | 13 | 1 | 0 | 2023-04-21 |
| Risøyhamn skole | Nordland, Norway | 12 | 1 | 0 | 2007-04-27 |
| Byrknes skule | Vestland, Norway | 12 | 1 | 0 | 2024-04-15 |
| Steigenskolen Leines | Nordland, Norway | 12 | 1 | 0 | 2008-05-07 |
| Moe skole | Vestfold, Norway | 12 | 1 | 0 | 2008-05-20 |
| Åsmund Berg | Innlandet, Norway | 12 | 1 | 3 | 2024-04-10 |
| Ingar Granholt | Vestfold, Norway | 12 | 1 | 0 | 2017-03-21 |
| Eli Brattland | Nordland, Norway | 12 | 1 | 0 | 2020-03-17 |
| Borgen ungdomsskole | Akershus, Norway | 11 | 1 | 0 | 2020-04-03 |
| Ottar Sætre | Møre og Romsdal, Norway | 11 | 1 | 2 | 2024-03-04 |
| Alstad barneskole | Nordland, Norway | 11 | 1 | 0 | 2017-04-27 |
| Olaf Hunsdal | Troms, Norway | 11 | 1 | 0 | 2014-04-26 |
| Liv Marie Sæther Sandberg | Innlandet, Norway | 11 | 1 | 0 | 2023-04-23 |
| Bjørg Vaage | Akershus, Norway | 11 | 1 | 0 | 2023-06-07 |
| Saksvik skole | Trøndelag, Norway | 11 | 1 | 0 | 2020-04-15 |
| Jønsberg videregående skole | Innlandet, Norway | 11 | 1 | 1 | 2020-05-12 |
| Kjell Arne Olsen | Vestfold, Norway | 11 | 1 | 0 | 2022-03-15 |
| Nils Battin | Agder, Norway | 10 | 1 | 0 | 2024-03-22 |
| Bioforsk Midt-Norge | Trøndelag, Norway | 10 | 1 | 0 | 2007-04-20 |
| Per Torgersen | Akershus, Norway | 10 | 1 | 0 | 2024-03-19 |
| Grav skole | Akershus, Norway | 10 | 1 | 0 | 2007-04-19 |
| elin sissener | Agder, Norway | 10 | 1 | 0 | 2024-04-02 |
| Vollebekk skole | Oslo, Norway | 10 | 1 | 5 | 2018-04-25 |
| Åmot skule avd skule | Telemark, Norway | 10 | 1 | 0 | 2020-05-06 |
| Olaug Elise Mjelde | Vestland, Norway | 9 | 1 | 0 | 2023-03-24 |
| Tove Hamre | Innlandet, Norway | 9 | 1 | 0 | 2019-03-27 |
| Ellen Palmstrøm | Buskerud, Norway | 9 | 1 | 0 | 2016-06-01 |