Polygonum
heterosepalum
PNW
ID
OR
66 specimens from 11 herbaria:
Idaho (28)
Oregon (38)
43 images from 9 herbaria:
BBLM (2)
BLMVL (4)
CIC (10)
ID (4)
IDS (1)
OSC (12)
SRP (8)
WS (1)
WTU (1)