[3] Hedge woundwort is an erect perennial plant with slender underground runners.

The stem branches occasionally and is squarish and hairy, with glandular hairs on the upper part of the plant.

The leaf blades are hairy, have a cordate base and are ovate with a blunt tip and with regular large teeth on the margin.

The calyx has five lobes and the corolla forms a two-lipped flower about 12 to 18 mm (0.47 to 0.71 in) long with a fused tube.

There are four stamens, two long and two short, the gynoecium has two fused carpels and the fruit is a four-chambered schizocarp.