| Part of speech | common noun |
|---|---|
| Hyphenation | po·li·gon·o |
| Singular | Plural | |
|---|---|---|
| Nominative | poligono | poligonoj |
| Accusative | poligonon | poligonojn |
| Afrikaans | duisendknoop |
|---|---|
| Bulgarian | |
| Danish | pileurt |
| Dutch | duizendknoop; varkensgras |
| English | knotweed; polygonum; knotgrass |
| French | renouée |
| German | Knöterich |
| Italian | poligono |
| Norwegian | hønsegras |
| Russian | горец |
| Spanish | polígono |
| Swedish | pilört |
| Ukrainian | гірчак |