Leaves and Stem
The leaves arise as opposite pairs and are oval and pointed. The leaves have short stalks (petioles) and are clearly toothed.
Sometimes, the young leaves may have a slight "purple" tinge to them.
Flowers and Fruits
The upper lip has two red - brown or maroon lobes whereas the lower lip has three lobes and is greenish. There are five sepals which have membranous edges.
Ecology and other notes
The common figwort is found in damp (deciduous) woodland and hedgerows. It has a foetid smell
It has a tuberous root system - of small nodules - hence its specific name : nodosa. Other names for this plant are Knotted Figwort, Throatwort.
At one time, it was used by herbalists in the treatment of a number of conditions - further information here.
There are other species of figwort - yellow figwort, balm leaved figwort and water figwort.