Yellow nutsedge is a troublesome, difficult to control weed often found in turf areas.
Also known as nutgrass or swampgrass, yellow nutsedge is not a broadleaf weed or a grassy weed, but a sedge, and a thorough understanding of yellow nutsedge is required before it can be controlled. Life Cycle and Identification Yellow nutsedge is a perennial plant that reproduces primarily by small underground tubers called nutlets. Farmers have difficulty controlling this weed, and as farm land is converted to home sites, the yellow nutsedge plants, as well as nutlets, are often found in the soil of lawns. Yellow nutsedge is most easily identified by the triangular shape of the stem. If you roll the stem of the plant in your fingers, you should be able to feel the triangular shape.