Populus deltoides
PNW
BC
ID
MT
OR
WA
278 specimens from 18 herbaria:
British Columbia (4)
Idaho (45)
Montana (176)
Oregon (31)
Washington (22)
170 images from 14 herbaria:
BBLM (1)
BLMVL (4)
BOIS (1)
CIC (17)
ID (15)
IDE (2)
IDS (8)
MONT (65)
MONTU (32)
PSM (1)
RM (5)
SRP (11)
USFS (6)
WTU (2)