The woolgrass (Scirpus cyperinus) belongs to Cyperaceae (the Sedge family). It is a perennial herb that is native to the eastern United States and eastern Canada. This herb is an emergent and grows in many types of wet habitat, such as marshes and ponds. It produces short, tough rhizomes and grows in dense clumps, and it can reach 90-150 cm in height. The stem is upright and bears 5-10 long linear, ascending to spreading leaves. The inflorescence of dark green spikelets is borne in June to July. It turn an attractive soft woolly appearance by late summer. Native Americans used this plant for a number of purposes, such as bags, mats, and stuff pillows.