紙莎草
The papyrus swamps are dominated by the sedge "Cyperus papyrus" and the grass "Oryza barthii". The seasonally-flooded grasslands include "Hyparrhenia rufa" and "Echinochloa pyramidalis", with "Hyparrhenia" dominant in the least-flooded areas, "Echinochloa" in more frequently-flooded areas, and "Vossia" nearest the permanent wetlands.