Silene latifolia (formerly Melandrium album), the white campion is a dioecious flowering plant in the family Caryophyllaceae, native to most of Europe, Western Asia and Northern Africa. It is a herbaceous annual, occasionally biennial or a short-lived perennial plant, growing to between 40-80 centimetres tall. It is also known in the USA as bladder campion but should not be confused with Silene vulgaris, which is more generally called Bladder Campion.