Callitriche stagnalis
PNW
BC
ID
MT
OR
WA
189 specimens from 19 herbaria:
British Columbia (40)
Idaho (2)
Montana (7)
Oregon (78)
Washington (62)
58 images from 13 herbaria:
CIC (1)
HPSU (14)
ID (5)
LEA (1)
MONTU (4)
NOCA (6)
PLU (5)
PSM (3)
SOC (2)
SRP (2)
UBC (3)
WTU (10)
WWB (2)