Populus alba
PNW
BC
ID
MT
OR
WA
103 specimens from 20 herbaria:
British Columbia (8)
Idaho (23)
Montana (2)
Oregon (34)
Washington (36)
55 images from 17 herbaria:
BABY (1)
BOIS (1)
CIC (8)
COCC (4)
HPSU (1)
ID (5)
IDS (7)
MONTU (2)
OSC (1)
PLU (2)
SOC (2)
SRP (5)
UBC (1)
VALE (1)
WCW (1)
WS (2)
WTU (11)