Green kyllinga is a perennial sedge that grows in continuously enlarging patches. Kyllinga grows well in warm weather and is usually found in damp or wet areas. It grows in a prostrate manner, reaching a height of 15 inches, and produces a network of numerous underground rhizomes. It roots and sends out leaves at each stem node. Leaves are long and narrow, tapering to a point and ranging from 1 to 6 inches in length. Leaves have a distinct ridge along the midvein and no hairs, auricles or ligules are present. Flowering usually occurs from May to October, producing flower stalks that are triangular in cross section and 2 to 8 inches in length. Flowers are round, green and about 3/8 inch in diameter. Directly below the flower is a group of three leaves that radiate out from the stalk. There are 30 to 75 spikelets within each flower and each one is capable of producing one seed. Once a few plants become established in turfgrass or ornamental areas, spread can be rapid. In warm weather, rhizomes can grow more than 1 inch per day, forming thick mats in just a few weeks.
