Persicaria pensylvanica var. laevigata (Fernald) W.C. Ferguson

Persicaria pensylvanica var. laevigata (Fernald) W.C. Ferguson is a synonym sensu IPNI of:

Persicaria pensylvanica (Linnaeus) M. Gómez de la Maza, an accepted species name sensu FNA Ed. Comm., 2005.