Ptilidium
pulcherrimum
PNW
AK
BC
ID
MT
OR
WA
YK
576 specimens from 9 herbaria:
Alaska (128)
British Columbia (256)
Idaho (32)
Montana (43)
Oregon (1)
Washington (111)
Yukon Territory (5)
67 images from 4 herbaria:
ALA (42)
SRP (4)
SRP-L (1)
WTU (20)