Leaves and Stem
Leaves arise from nodes (slightly swollen region of stem) as opposite pairs. The leaves are not toothed, that is the leaf margin is smooth or entire. The leaf shape may be described as lanceolate or spear shaped. The leaves, like the stem, bear numerous hairs.
Flowers and Fruits
Generally the flowers are a distinctive pink colour (18 - 25 mm across) but there is considerable variation in colour. A pale pink colour is sometimes an indication that the plant is a hybrid with the White Campion (Silene latifolia).
The petals (4/5) are deeply incised - so it looks as though there are many and surrounded on the outside by the 'teeth' of the sepals (calyx) - which are joined at their base.
Ecology and other notes
It is often found growing in rich soils in light shade in woodlands and hedegrows / hedgebanks. It is, however, widespread. It is a perennial plant.