Examples from the Web for persicaria
Here is a young one on this leaf of persicaria; do you see it?
It feeds in July and August on broom, dyer's greenweed (Genista tinctoria), persicaria, and other low plants.
The leaves of persicaria, also, are often selected by the female newt for the purpose of depositing her eggs.
But two or three of the Persicaria tribe are still in flower, and also some of the Goosefoots.Mirror of the Months|Peter George Patmore
It feeds in July and August on orach (Atriplex), persicaria, knot-grass, and will also eat dock.