Psora tuckermanii
PNW
AK
BC
ID
MT
OR
WA
92 specimens from 9 herbaria:
Alaska (2)
British Columbia (20)
Idaho (42)
Montana (8)
Oregon (10)
Washington (10)
58 images from 6 herbaria:
RR (34)
SRP-L (7)
SRP (7)
CRMO (2)
BBLM (2)
VALE (6)