Acer negundo
PNW
BC
ID
MT
OR
WA
YK
410 specimens from 29 herbaria:
British Columbia (17)
Idaho (129)
Montana (116)
Oregon (56)
Washington (90)
Yukon Territory (2)
265 images from 25 herbaria:
BABY (2)
BOIS (1)
CIC (18)
CIC-PYNF (1)
EWU (4)
HPSU (2)
ID (46)
IDS (17)
LEA (2)
MONT (45)
MONTU (15)
NOCA (3)
PLU (8)
PSM (10)
REED (1)
RM (5)
SOC (3)
SRP (30)
UBC (7)
USFS (28)
VALE (1)
WCW (8)
WSTC (2)
WTU (3)
WWB (3)