Scirpus pungens/americana (Three Square Bulrush grass)

The Three Square Bulrush grass is a perennial aquatic plant that belongs to the Cyperaceae family. It is native to North America and can be found in wetlands, marshes, and along the edges of lakes and ponds. This grass has triangular stems and blue-green leaves, which can reach a height of 3 to 6 feet. It produces dense clusters of brown flowers in the summer.