Campi e prati.
Dalla strada comunale per Monbercelli verso il confine SW del Parco.
Growing in the dunes by the top track.
I am assuming sheep sorrel,
Rumex acetosella is a species of sorrel, bearing the common names sheep's sorrel, red sorrel, sour weed, and field sorrel. The plant and its subspecies are common perennial weeds. It has green arrowhead-shaped leaves and red-tinted deeply ridged stems, and it sprouts from an aggressive and spreading rhizome. The flowers emerge from a tall, upright stem. Female flowers are maroon in color.