Potamogeton amplifolius
PNW
BC
ID
MT
OR
WA
251 specimens from 20 herbaria:
British Columbia (26)
Idaho (38)
Montana (50)
Oregon (44)
Washington (93)
103 images from 15 herbaria:
CIC (5)
HPSU (14)
ID (21)
IDE (2)
IDS (3)
MONT (1)
MONTU (33)
NOCA (2)
SOC (3)
SRP (3)
UBC (2)
USFS (3)
WCW (1)
WTU (7)
WWB (3)