Polygonaceae
| Authority | : | Jussieu, 1789 |
| Nederlands | : | Duizendknoopfamilie |
| English | : | knotweed family, buckwheat family |
| Deutsch | : | Knöterichgewächse |
| Rumex lunaria |
| Authority | : | Linnaeus, 1753 |
| English | : | Canary Islands sorrel, tree sorrel |
| Deutsch | : | Kanarenampfer |
| Español | : | calcosa, paradella canaria, vinagrera canaria |
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| Montaña Colorada (Tenerife), Spain; 19 December 2015. Native range is Canary Islands. |
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