Psora tuckermanii
PNW
BC
ID
MT
OR
WA
99 specimens from 10 herbaria:
British Columbia (20)
Idaho (50)
Montana (8)
Oregon (11)
Washington (10)
67 images from 8 herbaria:
BBLM (2)
CRMO (2)
OSC (1)
RR (35)
SRP (7)
SRP-L (11)
TFBLM (3)
VALE (6)