Polygonum bistorta
| Inflorescence | Flower |
| Recorded | 2006-06-17 |
| Location | Lac de Joux VD-CH |
| Copyright | Florence Rüegger |
| Family | Polygonaceae |
| Neophyte | No |
| Blooming Period | may–july |
| Height | 30–80cm |
| References | en.wikipedia.org |
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