Azolla microphylla
PNW
BC
ID
MT
OR
WA
110 specimens from 17 herbaria:
British Columbia (34)
Idaho (30)
Montana (4)
Oregon (19)
Washington (23)
60 images from 12 herbaria:
CIC (11)
HPSU (5)
ID (3)
IDE (3)
IDS (5)
LEA (1)
MONT (4)
MONTU (1)
PSM (1)
SRP (7)
WCW (3)
WTU (16)