Phylum: Karsporeplanter (Pteridophyta)
| Site | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. | |
|---|---|---|---|---|---|---|
| Rossevatn | Rogaland, Norway | 3 | 3 | 0 | 1989-09-06 | |
| Rudolf Steinerskolen Holtebrekk | Akershus, Norway | 2 | 2 | 0 | 2006-08-24 | |
| Røldalstjørnet | Vestland, Norway | 1 | 1 | 0 | 1989-09-14 | |
| Sagtjernet | Innlandet, Norway | 1 | 1 | 0 | 1989-09-20 | |
| Sagåsen | Innlandet, Norway | 1 | 1 | 0 | 2014-05-29 | |
| Sakseid | Vestland, Norway | 2 | 2 | 1 | 2020-04-24 | |
| Samnanger ungdomsskule | Vestland, Norway | 2 | 1 | 2 | 2019-09-17 | |
| Sandgotna skole | Vestland, Norway | 1 | 1 | 0 | 2016-05-30 | |
| Seljebøvatnet | Møre og Romsdal, Norway | 1 | 1 | 0 | 1989-09-19 | |
| Semsvannet | Akershus, Norway | 4 | 4 | 0 | 1994-05-18 | |
| Sillongen | Innlandet, Norway | 2 | 2 | 0 | 1989-09-14 | |
| Sjøholt | Møre og Romsdal, Norway | 1 | 1 | 0 | 2015-05-14 | |
| skartveit | Rogaland, Norway | 1 | 1 | 0 | 2010-05-20 | |
| Skarvatnet | Møre og Romsdal, Norway | 2 | 2 | 0 | 1989-09-13 | |
| Skeiene ungdomsskole | Rogaland, Norway | 4 | 1 | 1 | 2022-09-07 | |
| Skjelbreidvatnet | Vestland, Norway | 4 | 4 | 0 | 1991-06-06 | |
| Skomakerdiket | Vestland, Norway | 13 | 8 | 0 | 2012-09-12 | |
| Skranevatnet | Vestland, Norway | 32 | 9 | 5 | 2014-05-22 | |
| skraperudtjern | Oslo, Norway | 1 | 1 | 0 | 2011-09-15 | |
| Smertudammen | Østfold, Norway | 6 | 2 | 1 | 2017-09-04 | |
| Smertudammen | Østfold, Norway | 1 | 1 | 0 | 2017-08-29 | |
| Smertudammen Kråkerøy | Østfold, Norway | 1 | 1 | 0 | 2017-08-29 | |
| Solobservatoriet | Akershus, Norway | 1 | 1 | 0 | 2013-08-28 | |
| Solobservatoriet | Akershus, Norway | 2 | 2 | 2 | 2013-08-28 | |
| Solobservatoriet | Akershus, Norway | 1 | 1 | 1 | 2013-08-28 | |
| Solobservatoriet | Akershus, Norway | 1 | 1 | 1 | 2013-08-28 | |
| Spildervatnet | Nordland, Norway | 2 | 2 | 0 | 1989-09-20 | |
| St. Olavskilden | Akershus, Norway | 1 | 1 | 1 | 2002-05-12 | |
| Stavsjø | Innlandet, Norway | 2 | 1 | 0 | 1989-09-05 | |
| Steinsdalen | Vestland, Norway | 1 | 1 | 1 | 2023-10-11 | |
| stenbakk | Finnmark, Norway | 1 | 1 | 0 | 2014-04-23 | |
| Stensrudtjern | Oslo, Norway | 1 | 1 | 0 | 1989-09-21 | |
| Stignavatnet | Vestland, Norway | 1 | 1 | 0 | 2013-06-12 | |
| Stokkevannet | Telemark, Norway | 1 | 1 | 0 | 1989-09-13 | |
| Storavatnet | Vestland, Norway | 2 | 2 | 0 | 1989-09-26 | |
| Stordammen | Akershus, Norway | 1 | 1 | 0 | 1989-09-08 | |
| Store Bjørnevatnet | Agder, Norway | 1 | 1 | 0 | 1989-08-30 | |
| Storeidvatnet | Nordland, Norway | 1 | 1 | 0 | 1998-09-07 | |
| Storvannet | Nordland, Norway | 1 | 1 | 0 | 1990-09-07 | |
| Storvatnet | Trøndelag, Norway | 2 | 2 | 0 | 2004-08-14 | |
| Sundkilen | Telemark, Norway | 1 | 1 | 0 | 1989-09-07 | |
| Svanevatnet | Rogaland, Norway | 1 | 1 | 0 | 1989-09-04 | |
| Sæbyvannet | Østfold, Norway | 1 | 1 | 0 | 2002-05-30 | |
| Søreide | Vestland, Norway | 4 | 3 | 0 | 2013-06-13 | |
| Sørmarkveien | Rogaland, Norway | 2 | 2 | 0 | 2022-09-19 | |
| Tangeråsneset 35 | Vestland, Norway | 1 | 1 | 0 | 2023-10-03 | |
| Teie skole | Vestfold, Norway | 1 | 1 | 0 | 2016-08-15 | |
| Terråk skole | Nordland, Norway | 12 | 2 | 9 | 2023-04-17 | |
| Tjennane | Telemark, Norway | 1 | 1 | 0 | 1994-05-11 | |
| Tomaso | Vestland, Norway | 2 | 2 | 0 | 2012-06-13 |
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