Eriophorum latifolium is a perennial flowering plant, commonly known as broad-leaved cotton grass or bog cotton. It is native to the wetlands and marshes of northern Europe, Asia, and North America. Some synonyms for Eriophorum latifolium include Eriophorum gracile, Eriophorum brevifolium, Eriophorum tenellum, and Eriophorum polystachion. These synonyms are often used interchangeably to refer to the same plant species. Eriophorum latifolium is known for its fluffy white seed heads that resemble cotton, which make it a popular ornamental plant in gardens and landscapes. It is also used for traditional medicine and in the production of textiles and paper.