Lemna minor
PNW
AK
BC
ID
MT
OR
WA
337 specimens from 34 herbaria:
Alaska (2)
British Columbia (42)
Idaho (86)
Montana (32)
Oregon (89)
Washington (81)
225 images from 30 herbaria:
BBLM (3)
CIC (22)
CIC-PYNF (1)
COCC (1)
CRMO (3)
EWU (2)
HPSU (17)
ID (27)
IDE (7)
IDS (17)
LINF (1)
MONT (22)
MONTU (4)
MORA (1)
NOCA (2)
OSC (37)
PLU (1)
PSM (1)
REED (3)
SAJH (1)
SEF (1)
SOC (3)
SRP (3)
UAAH (1)
UBC (4)
VALE (1)
WCW (2)
WS (4)
WTU (27)
WWB (6)