| Giant Hogweed (Heracleum mantegazzianum) | | 2023-09-18 | 2023-09-18 |  | Florida (Vestland, Norway) |  |
| Giant Hogweed (Heracleum mantegazzianum) | | 2022-09-08 | 2022-08-25 | | Olsvik skole (Vestland, Norway) | |
| Giant Hogweed (Heracleum mantegazzianum) | | 2022-08-24 | 2022-08-22 | | Flaktveit (Vestland, Norway) | |
| Giant Hogweed (Heracleum mantegazzianum) | | 2022-08-23 | 2022-08-22 | | Flaktveit (Vestland, Norway) | |
| Giant Hogweed (Heracleum mantegazzianum) | | 2021-09-28 | 2021-09-28 | | Algrøyna (Vestland, Norway) | |
| Giant Hogweed (Heracleum mantegazzianum) | | 2021-09-15 | 2021-09-15 | | Hopsvannet (Vestland, Norway) | |
| Giant Hogweed (Heracleum mantegazzianum) | | 2020-10-16 | 2020-10-02 | | Leitet (Vestland, Norway) | |
| Giant Hogweed (Heracleum mantegazzianum) | | 2020-09-29 | 2020-09-24 | | Kiste-stue (Vestfold, Norway) | |
| Giant Hogweed (Heracleum mantegazzianum) | | 2020-09-25 | 2020-09-14 | | Løkken (Innlandet, Norway) | |
| Giant Hogweed (Heracleum mantegazzianum) | | 2020-09-25 | 2020-09-13 | | Tranbergrønningen (Innlandet, Norway) | |
| Giant Hogweed (Heracleum mantegazzianum) | | 2020-06-16 | 2020-06-16 | | Kongsvinger ungdomsskole (Innlandet, Norway) | |
| Giant Hogweed (Heracleum mantegazzianum) | | 2020-06-16 | 2020-06-16 | | Kongsvinger ungdomsskole (Innlandet, Norway) | |
| Giant Hogweed (Heracleum mantegazzianum) | | 2020-06-09 | 2020-06-09 | | Mesterfjellet skole (Vestfold, Norway) | |
| Giant Hogweed (Heracleum mantegazzianum) | | 2020-05-25 | 2020-05-25 | | Nybømarka/Svarteskogen (Vestland, Norway) | |
| Giant Hogweed (Heracleum mantegazzianum) | | 2019-06-18 | 2019-06-17 | | Orkanger ungdomsskole (Trøndelag, Norway) | |
| Giant Hogweed (Heracleum mantegazzianum) | | 2019-06-06 | 2019-06-04 | | Nidelva leirfossen (Trøndelag, Norway) | |
| Giant Hogweed (Heracleum mantegazzianum) | | 2019-06-06 | 2019-06-06 | | Nidelva leirfossen (Trøndelag, Norway) | |
| Giant Hogweed (Heracleum mantegazzianum) | | 2019-06-06 | 2019-06-06 | | Nidelva leirfossen (Trøndelag, Norway) | |
| Giant Hogweed (Heracleum mantegazzianum) | | 2019-05-22 | 2019-05-21 | | Lygra (Vestland, Norway) | |
| Giant Hogweed (Heracleum mantegazzianum) | | 2019-05-22 | 2019-05-21 | | Lygra (Vestland, Norway) | |
| Giant Hogweed (Heracleum mantegazzianum) | | 2018-06-18 | 2018-06-18 | | Skolevei (Akershus, Norway) | |
| Giant Hogweed (Heracleum mantegazzianum) | | 2018-06-18 | 2018-06-18 | | Skolevei (Akershus, Norway) | |
| Giant Hogweed (Heracleum mantegazzianum) | | 2017-09-29 | 2017-09-29 | | Hagellia (Vestland, Norway) | |
| Giant Hogweed (Heracleum mantegazzianum) | | 2017-09-28 | 2017-09-28 | | Stend (Vestland, Norway) | |
| Giant Hogweed (Heracleum mantegazzianum) | | 2017-09-28 | 2017-09-28 | | Stend (Vestland, Norway) | |
| Giant Hogweed (Heracleum mantegazzianum) | | 2017-09-04 | 2017-09-04 | | Ullern vgs (Oslo, Norway) | |
| Giant Hogweed (Heracleum mantegazzianum) | | 2017-09-04 | 2017-09-04 | | Ullern vgs (Oslo, Norway) | |
| Giant Hogweed (Heracleum mantegazzianum) | | 2017-05-30 | 2017-05-30 | | nærmiljø_Asker (Akershus, Norway) | |
| Giant Hogweed (Heracleum mantegazzianum) | | 2017-05-30 | 2017-05-30 | | Klaus Hansens vei (Vestland, Norway) | |
| Giant Hogweed (Heracleum mantegazzianum) | | 2017-05-30 | 2017-05-30 | | Klaus Hansens vei (Vestland, Norway) | |
| Giant Hogweed (Heracleum mantegazzianum) | | 2017-05-30 | 2017-05-30 | | Klaus Hansens vei (Vestland, Norway) | |
| Giant Hogweed (Heracleum mantegazzianum) | | 2017-05-07 | 2017-05-07 | | Vardåsen (Akershus, Norway) | |
| Giant Hogweed (Heracleum mantegazzianum) | | 2017-05-07 | 2017-05-07 | | Vardåsen (Akershus, Norway) | |
| Giant Hogweed (Heracleum mantegazzianum) | | 2016-09-08 | 2016-09-08 | | Frederik Ii videregående skole (Østfold, Norway) | |
| Giant Hogweed (Heracleum mantegazzianum) | | 2016-09-07 | 2016-09-07 | | Frederik Ii videregående skole (Østfold, Norway) | |
| Giant Hogweed (Heracleum mantegazzianum) | | 2016-09-07 | 2016-09-07 | | Knipleparken og området rundt (Østfold, Norway) | |
| Giant Hogweed (Heracleum mantegazzianum) | | 2016-09-07 | 2016-09-07 | | Knipleparken og området rundt (Østfold, Norway) | |
| Giant Hogweed (Heracleum mantegazzianum) | | 2016-09-07 | 2016-09-07 | | Frederik Ii videregående skole (Østfold, Norway) | |
| Giant Hogweed (Heracleum mantegazzianum) | | 2016-09-06 | 2016-09-06 | | Frederik Ii videregående skole (Østfold, Norway) | |
| Giant Hogweed (Heracleum mantegazzianum) | | 2016-09-06 | 2016-09-06 | | Frederik Ii videregående skole (Østfold, Norway) | |
| Giant Hogweed (Heracleum mantegazzianum) | | 2016-09-06 | 2016-09-06 | | Frederik Ii videregående skole (Østfold, Norway) | |
| Giant Hogweed (Heracleum mantegazzianum) | | 2016-09-06 | 2016-09-06 | | Frederik Ii videregående skole (Østfold, Norway) | |
| Giant Hogweed (Heracleum mantegazzianum) | | 2016-08-22 | 2016-08-22 | | Flaktveit (Vestland, Norway) | |
| Giant Hogweed (Heracleum mantegazzianum) | | 2016-08-22 | 2016-08-22 | | Flaktveit (Vestland, Norway) | |
| Giant Hogweed (Heracleum mantegazzianum) | | 2016-08-19 | 2016-08-19 | | Lygra (Vestland, Norway) | |
| Giant Hogweed (Heracleum mantegazzianum) | | 2016-08-19 | 2016-08-19 | | Lygra (Vestland, Norway) | |
| Giant Hogweed (Heracleum mantegazzianum) | | 2016-06-16 | 2016-06-16 | | Lygra (Vestland, Norway) | |
| Giant Hogweed (Heracleum mantegazzianum) | | 2016-06-16 | 2016-06-16 | | Lygra (Vestland, Norway) | |
| Giant Hogweed (Heracleum mantegazzianum) | | 2016-06-15 | 2016-06-15 | | Lygra (Vestland, Norway) | |
| Giant Hogweed (Heracleum mantegazzianum) | | 2016-06-15 | 2016-06-15 | | Lygra (Vestland, Norway) | |
Sustain.no is provided by the Norwegian Centre for Science Education