Viburnum opulus var. opulus
PNW
BC
ID
MT
OR
WA
61 specimens from 9 herbaria:
British Columbia (15)
Idaho (1)
Montana (12)
Oregon (13)
Washington (20)
23 images from 6 herbaria:
HPSU (3)
ID (1)
MONTU (11)
UBC (4)
UWB (2)
WTU (2)