Carex nigricans
PNW
AK
BC
ID
MT
OR
WA
890 specimens from 27 herbaria:
Alaska (41)
British Columbia (220)
Idaho (95)
Montana (106)
Oregon (120)
Washington (306)
463 images from 22 herbaria:
BABY (1)
CIC (11)
COCC (6)
EWU (1)
HPSU (1)
ID (61)
IDS (1)
LEA (2)
MONT (17)
MONTU (77)
MORA (21)
NOCA (23)
OSC (5)
PLU (8)
PSM (11)
REED (7)
SRP (9)
UAAH (2)
UBC (42)
WS (2)
WTU (127)
WWB (28)