Epilobium roseumThe pale willowherb is a species of flowering plant belonging to the family Onagraceae.Descriptioncan be difficult to distinguish from other species, for which reason it has been mistaken from Epilobium ciliatum, E. hirsutum, E. montanum and E. obscurum.Distribution and habitat's native range is Europe to China. It is a common species in lowlands, especially on moist ruderal sites.