Royle ex Bab. Polygonum smallianum T.M.Schust. & Reveal Polygonum spergulariiforme Meisn. ex Small Polygonum striatulum B.L.Rob. Polygonum stypticum Cham...

Polygonum spergulariiforme is a North American species of flowering plants in the buckwheat family known by the common name spurry knotweed or fall knotweed...

Johnston's knotweed Polygonum spergulariiforme, scatter knotweed Polygonum viviparum, alpine bistort Reynoutria japonica (syn. Polygonum cuspidatum), Japanese...