Carduus
acanthoides
PNW
BC
ID
MT
OR
WA
54 specimens from 15 herbaria:
British Columbia (8)
Idaho (31)
Montana (6)
Oregon (4)
Washington (5)
30 images from 11 herbaria:
BOIS (1)
HPSU (1)
ID (5)
IDE (8)
LEA (1)
MONT (3)
MONTU (2)
NEZ (2)
OSC (1)
SRP (2)
WTU (4)