Cirsium hookerianum
PNW
BC
ID
MT
WA
177 specimens from 18 herbaria:
British Columbia (49)
Idaho (11)
Montana (100)
Washington (17)
109 images from 14 herbaria:
BABY (1)
CIC (1)
ID (26)
IDS (2)
LEA (1)
MONT (14)
MONTU (26)
NOCA (2)
RM (1)
SRP (1)
UBC (6)
WSTC (1)
WTU (24)
WWB (3)