Polygonaceae
| Authority | : | Jussieu, 1789 |
| Nederlands | : | Duizendknoopfamilie |
| English | : | knotweed family, buckwheat family |
| Deutsch | : | Knöterichgewächse |
| Polygonum cf. equisetiforme |
| Authority | : | Smith, 1809 |
| English | : | horsetail knotgrass |
| Italiano | : | poligono equisetiforme |
| Español | : | centinodia, hierba de la sangre |
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| Potochnitsa (Kardzjali), Bulgaria; 25 June 2021. | |