Potamogeton pusillus
PNW
AK
BC
ID
MT
OR
WA
YK
421 specimens from 27 herbaria:
Alaska (42)
British Columbia (75)
Idaho (27)
Montana (67)
Oregon (103)
Washington (104)
Yukon Territory (3)
191 images from 22 herbaria:
ALA (37)
BABY (1)
BBLM-OWY (1)
BLMVL (2)
CIC (6)
EWU (2)
HPSU (29)
ID (19)
IDS (8)
MONT (14)
MONTU (40)
NOCA (2)
PLU (1)
PSM (1)
REED (1)
SOC (4)
SRP (2)
UAAH (1)
UBC (1)
WCW (1)
WTU (15)
WWB (3)