Imperata cylindrica
"Okavango deltaveld" has both grasses and woody plants. The woody plants are the "Fecus verruculosa" and the "Hyphaene crinata". The grasses reported are the "Phragmites communis", "Dichanthium papillusum", "Panicum repens", "Andropogon encomus", "Echinochloa pyramidelis" and "Imperata cylindrica".