Bermudagrass Johnsongrass Medusahead Quackgrass Field Bindweed Hoary Cress Diffuse Knapweed Russian Knapweed Spotted Knapweed Squarrose Knapweed Purple Loosestrife Perennial Pepperweed Leafy Spurge Yellow Starthsitle Canada Thistle Musk Thistle Scotch Thistle Dyer's Woad Back to main weeds page   Yellow Nutsedge Cyperus esculentus   Adult This is a very aggressive perennial growing from six to thirty inches tall. Young plants resemble grass but instead of two ranks of leaves, they produces three ranks. True leaves sprout from the plant base. Roots and Nutlets Filamentous roots send out lateral roots for reproduction and they may produce small three-quarter inch tubers that may also produce sprouts. They are long and narrow. Seedhead Leaf-like bracts appear on the upper stems at the base of flower clusters. Yellow nutsedge was probably originally found in the Mediterranean or European areas. It now invades agricultural areas, primarily potatoes, beans, corn, and gardens, in the United States. It thrives in moist soils. It reproduces by seeds, roots, and tubers. The tubers may remain viable but dormant for many years. Back to main weeds page   Buffalobur Common Burdock Camelthorn Goatsrue Jointed Goatgrass Poison Hemlock Black Henbane Houndstongue Blue-Flowering Lettuce Western Whorled Milkweed Silverleaf Nightshade Yellow Nutsedge Puncturevine Russian-Olive Saltcedar St. Johnswort Bull Thistle Dalmatian Toadflax Yellow Toadflax Velvetleaf