Viburnum trilobum (American Cranberrybush Viburnum, American Cranberrybush or Highbush or High Bush Cranberry) is a species of Viburnum native to northern North America, from Newfounland west to British Columbia, south to Washington state and east to northern Virginia, with an isolated population in New Mexico. It is very closely related to the European and Asian Viburnum opulus, and is often treated as a variety of it, as Viburnum opulus L. var. americanum Ait., or as a subspecies, Viburnum opulus subsp. trilobum (Marshall) Clausen.