Viburnum opulus var. americanum L. Ait (formerly known as Viburnum trilobum) Quick Links: FAQs || Plant Description || Insect Pests || Pruning Some Other Common Names: American cranberrybush, guelder rose, dog rowan, *European cranberry tree, marsh alder, rose elder, red elder, water elder, dog elder, gatten tree, whitten tree, ople tree, snowball tree, crampbark [caption