Cyperus eragrostis aka Umbrella Sedge

Cyperus eragrostis, also known as tall flatsedge, nutgrass, umbrella sedge, chufa, Earth almond, zula nuts, edible galingale, and pale galingale, is a tufted, rhizomatous perennial sedge. It can grow up to 90cm in height and has stout, winged stems. The plant features long, grass-like leaves that radiate out from the tops of the stems. During summer, it produces spherical clusters of tiny green flowers. Unlike other Cyperus species, it is more tolerant of drier conditions. As a houseplant, the rare tall flatsedge requires regular watering and thrives best in abundant sunlight, preferably within 3 feet of a window. It prefers soil that retains moisture and can benefit from gentle, organic fertilizer application during the peak growing season.