Bladder Campion is a
perennial plant of the UK, typically found growing in grassland, hedgerows and waste ground, to a mature height of up to 60cm.
Bladder Campion is so called because each of its flowers have a distinctive enlarged greenish 'bladder', formed of fused sepals, just behind the petals. The flowers are also characterised by very deeply-cleft petals, dividing each into two rounded lobes.
Botanic classification and naming: Bladder Campion is a member of the Carnation (Caryophyllaceae) family. The genus name
'Silene' identifies the plant as a Campion and its species name 'vulgaris' means 'common species'.