Callitriche heterophylla var. heterophylla
PNW
AK
BC
ID
MT
OR
WA
YK
70 specimens from 14 herbaria:
Alaska (26)
British Columbia (18)
Idaho (6)
Montana (3)
Oregon (9)
Washington (5)
Yukon Territory (3)
45 images from 10 herbaria:
ALA (23)
BABY (1)
HPSU (1)
ID (1)
IDS (1)
NOCA (2)
SRP (2)
UBC (8)
WTU (5)
WWB (1)