Carex brunnea, commonly known as Greater Brown Sedge, is an evergreen perennial grass native to a variety of habitats including wet meadows, marshes, stream banks, and moist open woodlands across Asia, Africa, and the Pacific Islands. It typically grows to a height of 0.7-1 feet (0.2-0.3 meters) and can spread to a width of 3-4 feet (0.9-1.2 meters). The plant features narrow, arching leaves that are brownish-green in color, contributing to its common name. Greater Brown Sedge does not produce showy flowers, but its foliage provides a fine-textured contrast in garden settings.

Greater Brown Sedge is valued for its ability to thrive in wet conditions and is often used in rain gardens, as a ground cover in moist areas, and for erosion control along waterways. It is also suitable for container planting and can be used to add texture in mixed plantings. This sedge prefers full sun to part shade and requires consistently moist soil with medium drainage. While it is generally low-maintenance, it can spread vigorously in ideal conditions, which should be considered when planting.CC BY-SA 4.0