Verbena officinalis
PNW
BC
ID
MT
OR
WA
32 specimens from 11 herbaria:
British Columbia (1)
Idaho (7)
Montana (2)
Oregon (3)
Washington (19)
23 images from 8 herbaria:
BOIS (2)
CIC (3)
EWU (1)
IDE (7)
IDS (2)
MONT (1)
SRP (2)
WTU (5)