Populus angustifolia
PNW
ID
MT
OR
WA
268 specimens from 17 herbaria:
Idaho (115)
Montana (117)
Oregon (32)
Washington (4)
170 images from 13 herbaria:
BLMVL (9)
BOIS (5)
CIC (8)
CRMO (1)
HPSU (2)
ID (44)
IDS (23)
MONT (42)
MONTU (14)
RM (7)
SRP (10)
USFS (3)
WCW (2)