Carex atratiformis
PNW
AK
BC
ID
MT
OR
WA
YK
61 specimens from 11 herbaria:
Alaska (15)
British Columbia (20)
Idaho (3)
Montana (1)
Oregon (1)
Washington (1)
Yukon Territory (20)
36 images from 8 herbaria:
ALA (20)
BOIS (2)
CIC (1)
ID (1)
MONT (1)
UAAH (2)
UBC (8)
WWB (1)