Lemna trisulca
PNW
AK
BC
ID
MT
OR
WA
209 specimens from 18 herbaria:
Alaska (6)
British Columbia (41)
Idaho (8)
Montana (58)
Oregon (18)
Washington (71)
106 images from 13 herbaria:
BABY (2)
EWU (12)
HPSU (2)
ID (9)
IDS (1)
MONT (14)
MONTU (31)
NOCA (2)
OSC (14)
UAAH (5)
WCW (2)
WTU (4)
WWB (8)