Deciduous, erect, large shrub, 1-4 m tall; twigs glabrous; bark smooth, grey.
Opposite, stalked, broadly egg-shaped to nearly round in outline, 5-13 cm long, all deeply and sharply 3-lobed, coarsely blunt-toothed, nearly glabrous or hairy beneath on the veins; stalks with a shallow groove and small glands upward.
Inflorescence a flattish cluster of several to many flowers, 5-15 cm across, with sterile marginal flowers much larger than the fertile inner ones; petals white, fused at bases into tubes that spread (1.5-2.5 cm wide) to 5 large lobes in the marginal flowers, to 3-4 mm wide in the small inner flowers; stamens conspicuous, exserted of corolla, the filaments 3-5 mm long.
Berrylike drupes, clustered, scarlet, 0.8-1.5 cm long, each with a single, large, flattened stone.
Present from Summer to Fall
Source: The USDA
||Value / Class
Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
of field plots
species was recorded in:
BEC Zone Class
All BEC Zones (# of stations/zone) species was recorded in
|ESSF(1), ICH(3), IDF(1), MS(1), SBS(1)|
Source: Klinkenberg 2013
Synonyms and Alternate Names:
Viburnum opulus subsp. trilobum (Marsh.) R.T. Clausen
Viburnum trilobum Marsh.
TAXONOMIC KEY TO VIBURNUM
1. Leaves deeply 3-lobed; sterile corollas 1.5-2.5 cm across; stamens conspicuous, exserted from the corollas V. opulus
1. Leaves shallowly 3-lobed; corollas all 0.4-0.7 cm across; stamens inconspicuous V. edule
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