High Quality Content by WIKIPEDIA articles! Cladium (Fen-sedge, Sawgrass or Twig-sedge) is a genus of large sedges, with a worldwide distribution in tropical and temperate regions. These are plants characterized by long, narrow (grass-like) leaves having sharp, often serrated (sawtooth-like) margins, and flowering stems 1–3 m tall bearing a much-branched inflorescence. The number of species it contains is disputed, with different authors accepting between two and 60 species as distinct.