Potamogeton robbinsii
PNW
AK
BC
ID
MT
OR
WA
182 specimens from 19 herbaria:
Alaska (11)
British Columbia (20)
Idaho (18)
Montana (20)
Oregon (24)
Washington (89)
81 images from 14 herbaria:
BLMVL (1)
CIC (3)
EWU (2)
HPSU (7)
ID (16)
IDS (6)
MONTU (16)
NOCA (1)
REED (1)
SRP (1)
UAAH (8)
UBC (4)
WTU (11)
WWB (4)