Pertusaria amara
PNW
AK
BC
ID
OR
WA
154 specimens from 7 herbaria:
Alaska (7)
British Columbia (35)
Idaho (3)
Oregon (21)
Washington (88)
31 images from 5 herbaria:
ALA (7)
OSC (14)
RR (8)
SRP (1)
WTU (1)