Caltha palustris
PNW
AK
BC
ID
MT
OR
WA
YK
429 specimens from 18 herbaria:
Alaska (328)
British Columbia (22)
Idaho (3)
Montana (1)
Oregon (36)
Washington (22)
Yukon Territory (17)
302 images from 15 herbaria:
ALA (257)
BABY (3)
EWU (1)
HPSU (3)
ID (4)
IDS (1)
LEA (1)
LINF (1)
PLU (1)
PSM (2)
SOC (3)
UAAH (12)
UBC (10)
WTU (2)
WWB (1)