in taxon berry plant guelder-rose plant European cranberrybush PLANTS:VIOP Viburnum opulus (common name guelder-rose) is a species of flowering plant in the family *Adoxaceae* (formerly *Caprifoliaceae*) native to Europe, northern Africa and central Asia. Other common names include water elder, cramp bark, snowball tree and European cranberrybush, though this plant is not closely related to the cranberry. [https://en.wikipedia.org/wiki/Viburnum_opulus] guelder rose crampbark crampbark viburnum opulus Viburnum opulus requires discussion