Curled Dock ?

Curled Dock ?

Observation - Curled Dock ? - UK and Ireland. Description: Long rather narrow leaves, crisped at edges.Tepals have no teeth. But this could be Northern Dock (R.longifolius)? It is growing near the river.

Long rather narrow leaves, crisped at edges.Tepals have no teeth. But this could be Northern Dock (R.longifolius)? It is growing near the river.