Callitriche heterophylla var. heterophylla
PNW
AK
BC
ID
OR
WA
44 specimens from 13 herbaria:
Alaska (4)
British Columbia (18)
Idaho (6)
Oregon (9)
Washington (6)
32 images from 11 herbaria:
BABY (1)
HPSU (1)
ID (1)
IDS (1)
NOCA (2)
OSC (8)
SRP (2)
UAAH (1)
UBC (8)
WTU (6)
WWB (1)