Tussilago farfara (Colt's-foot)
| Site | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. | |
|---|---|---|---|---|---|---|
| Ølbergstranden | Rogaland, Norway | 1 | 1 | 0 | 2008-03-15 | |
| Øra naturreservat | Østfold, Norway | 1 | 1 | 0 | 2008-02-27 | |
| Øre | Møre og Romsdal, Norway | 2 | 1 | 0 | 2020-04-14 | |
| Øren skole | Buskerud, Norway | 2 | 1 | 0 | 2008-04-29 | |
| Østby | Trøndelag, Norway | 1 | 1 | 0 | 2007-04-17 | |
| Østensjø | Oslo, Norway | 1 | 1 | 0 | 2007-04-11 | |
| Østlandet | Oslo, Norway | 1 | 1 | 0 | 2007-04-19 | |
| Østre Torp | Akershus, Norway | 1 | 1 | 0 | 2018-04-08 | |
| øståsen | Buskerud, Norway | 2 | 1 | 0 | 2008-04-10 | |
| Øvre Alta | Finnmark, Norway | 1 | 1 | 0 | 2013-04-26 | |
| Øvre Alta | Finnmark, Norway | 1 | 1 | 0 | 2013-05-08 | |
| Øvre Brenn | Innlandet, Norway | 5 | 1 | 0 | 2023-04-25 | |
| Øvre Dagsvik | Nordland, Norway | 1 | 1 | 0 | 2010-04-28 | |
| Øvre Hellefossvei | Buskerud, Norway | 1 | 1 | 0 | 2020-04-10 | |
| Øvre Langviksveien 17 | Trøndelag, Norway | 1 | 1 | 0 | 2019-04-05 | |
| Øya i Mosjøen | Nordland, Norway | 1 | 1 | 0 | 2012-09-21 | |
| Øystese | Vestland, Norway | 1 | 1 | 0 | 2020-03-07 | |
| Øystese | Vestland, Norway | 1 | 1 | 1 | 2016-03-30 | |
| Å barneskole | Agder, Norway | 2 | 1 | 0 | 2010-04-06 | |
| Åbøgrend | Telemark, Norway | 1 | 1 | 0 | 2020-04-28 | |
| Ådland | Rogaland, Norway | 1 | 1 | 0 | 2001-05-21 | |
| Åfjorden | Trøndelag, Norway | 2 | 1 | 0 | 2007-04-03 | |
| Ågskardet | Nordland, Norway | 1 | 1 | 0 | 2008-04-02 | |
| Åkvika | Møre og Romsdal, Norway | 1 | 1 | 0 | 2013-03-26 | |
| Ålmo | Trøndelag, Norway | 1 | 1 | 0 | 2007-04-30 | |
| Ålvik | Vestland, Norway | 1 | 1 | 0 | 2015-04-03 | |
| Åmot sentrum | Telemark, Norway | 1 | 1 | 0 | 2008-05-06 | |
| Årnesveien 25 | Troms, Norway | 1 | 1 | 0 | 2007-04-10 | |
| Åros | Akershus, Norway | 1 | 1 | 0 | 2008-04-07 | |
| Årset | Møre og Romsdal, Norway | 2 | 1 | 0 | 2008-03-12 | |
| Årø | Vestfold, Norway | 1 | 1 | 0 | 2001-04-25 | |
| ås | Akershus, Norway | 1 | 1 | 0 | 2007-04-17 | |
| Åsen, Blylaget | Akershus, Norway | 1 | 1 | 1 | 2007-04-25 | |
| åsheim | Nordland, Norway | 1 | 1 | 0 | 2017-01-31 | |
| Åsleiastubben | Akershus, Norway | 2 | 1 | 0 | 2017-04-04 | |
| Åsvang Skole | Trøndelag, Norway | 1 | 1 | 0 | 2010-04-28 | |
| Åsvang, Ryfoss, Høre område | Innlandet, Norway | 1 | 1 | 0 | 2012-03-30 |