Carex joorii, commonly known as Cypress Swamp Sedge, is a perennial graminoid native to the Southeastern United States, particularly thriving in wetland habitats such as depression swamps, bottomland hardwood forests, and wet prairies. It is often found in association with Sphagnum moss. This sedge typically reaches heights of 24 to 28 inches and forms dense clumps, which contribute to its role in soil stabilization and providing habitat for wildlife. The plant produces inconspicuous greenish-brown flowers that transition into fruits from summer through early fall, which are important food sources for various waterfowl and small mammals.

Cypress Swamp Sedge is valued for its ability to thrive in wet, acidic soils, making it an excellent choice for rain gardens, wetland restoration projects, and naturalized areas. It is also used to prevent erosion along waterways. In cultivation, it requires consistent moisture and can tolerate standing water, making it suitable for planting in areas that are too wet for many other species. It prefers full sun to part shade conditions. While generally low-maintenance, it can spread if conditions are ideal, so management may be necessary to keep it within bounds.CC BY-SA 4.0