Persicaria hydropiperoides
PNW
AK
BC
ID
OR
WA
199 specimens from 20 herbaria:
Alaska (1)
British Columbia (39)
Idaho (16)
Oregon (79)
Washington (64)
59 images from 16 herbaria:
ALA (1)
BBLM-OWY (1)
CRMO (1)
HPSU (10)
ID (6)
IDS (7)
MONT (1)
NOCA (6)
PLU (1)
PSM (2)
SOC (2)
SRP (4)
UBC (1)
UWB (2)
WTU (9)
WWB (5)