University of Alberta Museums Search

Scientific Name Viburnum opulus L. Common Name highbush-cranberry, pembina General Description A deciduous upright shrub with grey, smooth bark, growing 1-4 m tall. Leaves

Opposite; simple; 3 pointed lobes; smooth; irregularly toothed margin; deep green above, paler below; become red in fall; reddish stalks; stipules 6 mm long with glandular tips (Johnson et al., 1995). 4-11 cm long;…

Opposite; simple; 3 pointed lobes; smooth; irregularly toothed margin; deep green above, paler below; become red in fall; reddish stalks; stipules 6 mm long with glandular tips (Johnson et al., 1995). 4-11 cm long; 4.5-8 cm wide.

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Inflorescence a cyme, terminal, 5-12 cm diameter; flowers radially symmetric; marginal flowers sterile, 1-1.5 cm across; inner flowers fertile, 6-8 mm across; sepals 5, fused, green; petals 5, bases fused into tube,…

Inflorescence a cyme, terminal, 5-12 cm diameter; flowers radially symmetric; marginal flowers sterile, 1-1.5 cm across; inner flowers fertile, 6-8 mm across; sepals 5, fused, green; petals 5, bases fused into tube, arranged disc-like, white to creamy; stamens 5, white, exserted; pistils 1, stigma 3-lobed, ovary inferior

Read More + Fruits and Seeds Round to elliptical berry-like drupes in drooping clusters; orange to red; 8-10 mm wide, juicy, acidic. Phenology Flowering May - July. Notes 2n=18 Similar species: Viburnum edule which has smaller cymes of 1-2 cm diameter, compared to the 15 cm diameter of V. opulus cymes. Range/Distribution Alberta: SW border in mountain range and central. CAN (BC, SK, MB, ON, QC, NL, NS, NB, PE); USA (WA, ID, MT, WY, SD, ND, NM, NE, MN, WI, IA, MO, IL, TN, IN, KY, OH, MI, VA, WV, PA, MD, NJ, NY, NH, RI, CT, MA, VE, ME).