Cyperus

Cyperus is a large genus of about 700 species of sedges, distributed throughout all continents in both tropical and temperate regions.

The word comes from the ancient Greek (kúperos), which meant one or several species of this genus. Common names include papyrus sedges, flatsedges, nutsedges, umbrella-sedges, galingales, and zozoro (from Malagasy).