Clematis occidentalis
PNW
BC
ID
MT
OR
WA
674 specimens from 23 herbaria:
British Columbia (93)
Idaho (98)
Montana (260)
Oregon (48)
Washington (175)
272 images from 18 herbaria:
CIC (13)
EWU (12)
HPSU (2)
ID (18)
IDS (8)
LEA (4)
MONT (66)
MONTU (69)
NOCA (8)
PLU (2)
PSM (3)
RM (3)
SRP (9)
UBC (1)
USFS (35)
WCW (3)
WTU (14)
WWB (2)