Cetraria
aculeata
PNW
AK
BC
ID
MT
OR
WA
YK
209 specimens from 9 herbaria:
Alaska (53)
British Columbia (97)
Idaho (3)
Montana (8)
Oregon (6)
Washington (27)
Yukon Territory (15)
65 images from 5 herbaria:
ALA (39)
OSC (2)
RR (21)
SRP (1)
SRP-L (2)