Ptilium crista-castrensis
PNW
AK
BC
ID
MT
OR
WA
399 specimens from 12 herbaria:
Alaska (210)
British Columbia (116)
Idaho (16)
Montana (27)
Oregon (3)
Washington (13)
6 images from 4 herbaria:
OSC (2)
SRP (1)
SRP-B (1)
WTU (2)