Viburnum opulus L.
Guelder Rose, Water Elder, European Cranberrybush, Cramp Bark, Snowball Tree
Guelder rose is native to Europe and Asia.
Identification: This shrub reaches 13-16' (4-5 m), with three-lobed, coarse-veined, somewhat maple-like leaves 1¾-4" (5-10 cm) in size. Leaves have course serrations, and occur in opposing pairs. Flowerheads (technically corymbs) are 1½-4" (4-11 cm) around. Each corymb has an outer ring of sterile, white- or cream-colored flowers ½-¾" (1.5-2 cm) around, with five petals. Within this ring is a large number of very small, fertile flowers, also white, about ⅛" (5 mm) around. The fruits are brilliant red when ripe, ⅛-¼" (3.2-6.3 mm) in diameter, round or somewhat oval.
See this comparison table showing Viburnums that are presently in our database, or this nicely done Viburnum species guide.
Viburnum opulus on Missouriplants.com
Viburnum opulus on Blue Planet Biomes
Viburnum opulus L. var. americanum from the USDA Forest Service, Rocky Mountain Region, Species Conservation Project (PDF)
Viburnum opulus at the University of Connecticut Plant Database
Viburnum opulus on Plants for a Future, a resource and information centre for edible and otherwise useful plants
Viburnum opulus at the Virginia Tech Department of Forest Resources and Environmental Conservation
Viburnum opulus on CalPhotos
Viburnum opulus on eFloras
Viburnum opulus description by Thomas H. Kent, last updated 25 May 2020.
Range: Zones 3-8: