Viola arvensis
PNW
BC
ID
MT
OR
WA
105 specimens from 18 herbaria:
British Columbia (8)
Idaho (31)
Montana (5)
Oregon (22)
Washington (39)
54 images from 14 herbaria:
EWU (2)
HPSU (4)
ID (12)
IDE (8)
IDS (1)
MONT (2)
MONTU (2)
NOCA (5)
PLU (2)
PSM (2)
REED (1)
SRP (4)
WTU (8)
WWB (1)