Heteranthera dubia
PNW
BC
ID
MT
OR
WA
106 specimens from 11 herbaria:
British Columbia (13)
Idaho (3)
Montana (16)
Oregon (23)
Washington (51)
58 images from 9 herbaria:
BLMVL (3)
CIC (7)
ID (6)
MONT (2)
MONTU (11)
OSC (7)
SRP (1)
UBC (1)
WTU (20)