| Osmunda regalis |
| Authority | : | Linnaeus, 1753 |
| Nederlands | : | Koningsvaren |
| English | : | royal Fern, regal fern |
| Deutsch | : | Königsfarn, Königsrispenfarn |
| Norsk | : | Kongsbregne |
| Svenska | : | Kungsbräken |
| Français | : | Fougère royale |
| Italiano | : | felce florida |
| Español | : | antojil, helecho acuático, helecho florido helecho real, lantochil, moco de pavo |
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| Amstelveen, the Netherlands; 8 May 2011 & 12 May 2018. | ||
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| Bussum, the Netherlands; 9 June 2021. | ||