Viburnum
opulus
PNW
BC
ID
MT
OR
WA
136 specimens from 16 herbaria:
British Columbia (48)
Idaho (10)
Montana (14)
Oregon (25)
Washington (39)
62 images from 14 herbaria:
CIC (1)
CIC-PYNF (1)
HPSU (6)
ID (3)
IDS (1)
MONTU (12)
NOCA (2)
OSC (7)
PLU (4)
SRP (4)
UBC (11)
UWB (2)
WS (2)
WTU (6)