| Family : | ONAGRACEAE (Evening-primrose Family) |
| Common Name (UK) : | Rosebay Willowherb |
| Common Name (DE) : | Schmalblättriges Weidenröschen |
| Common Name (FR) : | Epilobe en épi |
| Other Scientific Name : | Epilobium angustifolium |
| Habitat : | Very common on cleared ground in forestry plantations, on waste ground etc. Introduced to Europe from the U.S. |
| Remarks : | |
| First appearing : | July |
| Abundance : | Abundant |
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