Xyris operculata is a plant species that belongs to the Xyridaceae family. It is also commonly referred to as the yellow-eyed grass due to its small yellow flowers. Several synonyms have been identified to refer to this plant, including Xyris caroliniana, Xyris difformis, Xyris juncea, Xyris laxiflora and Xyris mellichampii. The plant is native to the United States and can be found growing in wetlands, marshes and boggy areas. The leaves of the plant are long and narrow, with flowers that grow on a tall stem. Although it is not a particularly well-known plant, it is one that is highly valued for its aesthetic and ecological contributions.