Cyperus haspan L. Common Name : Haspan flatsedgeFamily : Cyperaceae HABIT PERENNIAL STOLONIFEROUS HERB. STEMS SLENDER, TRIQUETROUS, OBSCURELY WINGED. LEAVES LINEAR, FLAT, LIGHT GREEN. FLOWERS INFLORESCENCE COMPOUND; SPIKELETS OBLONG, CLUSTERED IN GROUPS. FRUITS NUTLETS BROADLY OVATE, TRIGONOUS, CREAM YELLOW.