| Family : | ONAGRACEAE (Evening-primrose Family) |
| Common Name (UK) : | Great Willowherb |
| Common Name (DE) : | Zottiges Weidenröschen |
| Common Name (FR) : | Epilobe hérissée |
| Habitat : | Streams, ditches, wet places |
| Remarks : | Introduced to the U.S. where it is considered a noxious weed. |
| First appearing : | June |
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