Aira praecox
PNW
BC
OR
WA
YK
406 specimens from 19 herbaria:
British Columbia (204)
Oregon (53)
Washington (148)
Yukon Territory (1)
50 images from 12 herbaria:
ALA (1)
CIC (1)
HPSU (3)
ID (1)
LEA (1)
NOCA (4)
PLU (9)
PSM (8)
REED (7)
SOC (3)
UBC (6)
WTU (6)