Persicaria pensylvanica var. dura (Stanford) C.F. Reed

Persicaria pensylvanica var. dura (Stanford) C.F. Reed is a synonym sensu FNA Ed. Comm., 2005 of:

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