Polygonum persicaria
| Inflorescence | Flower |
| Recorded | 2006-08-17 |
| Location | Rothrist AG-CH |
| Copyright | Florence Rüegger |
| Family | Polygonaceae |
| Neophyte | No |
| Blooming Period | july–october |
| Height | 20–80cm |
| References | en.wikipedia.org |
6 | 20