Silene vulgaris, the bladder campion or maidenstears, is a plant species of the genus Silene of the family Caryophyllaceae. It is native to Europe, temperate Asia, and northern Africa. It has been widely naturalized in North America.

Silene is a genus of flowering plants in the family Caryophyllaceae. Containing nearly 900 species, it is the largest genus in the family. Common names include campion and catchfly. Many Silene species are widely distributed, particularly in the northern hemisphere.