Calliergon
stramineum
PNW
AK
BC
ID
MT
OR
WA
387 specimens from 7 herbaria:
Alaska (281)
British Columbia (60)
Idaho (8)
Montana (3)
Oregon (11)
Washington (24)
183 images from 3 herbaria:
ALA (178)
UAAH (2)
WTU (3)