Usnea lapponica
PNW
AK
BC
ID
MT
OR
WA
YK
560 specimens from 9 herbaria:
Alaska (35)
British Columbia (55)
Idaho (211)
Montana (144)
Oregon (43)
Washington (71)
Yukon Territory (1)
459 images from 5 herbaria:
ALA (14)
OSC (437)
SRP (3)
RR (4)
WTU (1)