| Scleranthus perennis |
| Authority | : | Linnaeus 1753 |
| Nederlands | : | Overblijvende hardbloem |
| English | : | Perennial Knawel |
| Deutsch | : | Ausdauernder Knäuel |
| Norsk | : | Flerårsknavel |
| Svenska | : | Vitknavel |
| Français | : | Gnavelle vivace |
| Italiano | : | centograni perenne |
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| El Portalet (Huesca), Spain; 16 June 2019. | |