Betula ×utahensis
PNW
AK
BC
ID
OR
WA
110 specimens from 10 herbaria:
Alaska (8)
British Columbia (38)
Idaho (41)
Oregon (7)
Washington (16)
39 images from 7 herbaria:
CIC-PYNF (1)
HPSU (1)
ID (23)
IDS (5)
SRP (7)
UBC (1)
WTU (1)