Betula pendula
PNW
BC
ID
MT
OR
WA
84 specimens from 15 herbaria:
British Columbia (15)
Idaho (9)
Montana (2)
Oregon (28)
Washington (30)
22 images from 10 herbaria:
HPSU (1)
ID (3)
IDE (1)
IDS (1)
MONTU (1)
PLU (1)
SOC (2)
SRP (4)
UBC (2)
WTU (6)