Silene latifolia, commonly known as 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 US as bladder campion but should not be confused with Silene vulgaris, which is more generally called bladder campion.

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.