Sedge Control can be difficult, even by professionals. Understanding more about how it grows will help you understand why it can be such a big problem in your lawn. Nutsedge, also known as SEDE or Nutgrass, is an eternal plant that reproduces especially by small underground tubers, called Nutlets, which are formed at the bottom of the underground stem. The underground stem is called rhizome. One bean plant can produce several hundred tubers during the summer. In one year, reproduction of one tuber has the potential to produce 1,900 new plants and 7,000 new tubers. Yellow Nutsge can also be spread by rhizomes. Now you can see why it's so difficult to control and why it spreads on your page. Fortunately, individual tubers do not live more than 3 years. There are several ways to identify sedges and distinguish them from grasses. Sedge can be identified by the triangular shape of its stem. You can feel the shape by rolling the stem in your fingertips. Sedge leaves are arranged in groups of three, which also distinguishes it from grasses. The leaves are light green to yellowish, and each leaf has a long, tapered tip. The yellowish color is usually easy to see in a green lawn as being different. Each leaf also has a prominent midrib, and has a slick, shiny, or waxy appearance.