Sisymbrium officinale
PNW
BC
ID
MT
OR
WA
316 specimens from 26 herbaria:
British Columbia (91)
Idaho (20)
Montana (8)
Oregon (94)
Washington (103)
144 images from 20 herbaria:
CIC (1)
COCC (1)
EWU (2)
HPSU (9)
ID (17)
IDE (5)
IDS (5)
MONT (4)
NOCA (4)
OSC (38)
PLU (4)
PSM (4)
REED (6)
SOC (4)
SRP (5)
UBC (4)
WCW (4)
WS (1)
WTU (15)
WWB (11)