CLADIUM
Cladium
Cladium is a genus of large sedges, with a worldwide distribution in tropical and temperate regions. These are plants characterized by long, narrow leaves having sharp, often serrated margins, and flowering stems 1–3 m tall bearing a much-branched inflorescence.The above text is a snippet from Wikipedia: Cladium
and as such is available under the Creative Commons Attribution/Share-Alike License.