Sinapis
arvensis
PNW
BC
ID
MT
OR
WA
200 specimens from 20 herbaria:
British Columbia (49)
Idaho (32)
Montana (37)
Oregon (33)
Washington (49)
105 images from 15 herbaria:
CIC (1)
ID (10)
IDE (2)
IDS (12)
MONT (25)
MONTU (10)
NOCA (5)
OSC (10)
PLU (4)
PSM (1)
SOC (7)
SRP (4)
UBC (5)
WTU (8)
WWB (1)