Tricostularia pauciflora, commonly known as Few-flowered Tricostularia or Sparse-flowered Sword-sedge, is an evergreen grass native to the wetlands and seasonally inundated plains of southwestern Australia. It thrives in habitats such as sandy, peaty swamps and is adapted to environments that experience seasonal waterlogging. This grass typically grows at a moderate rate to a height of 1.5-3 feet (0.46-0.9 meters) and a width of 1-2 feet (0.3-0.6 meters). Its form is tufted with narrow, grass-like leaves, and it produces brown, inconspicuous flowers that bloom in the spring. The flowers are not particularly showy, but they do contribute to the plant’s naturalistic appeal.

Few-flowered Tricostularia is valued for its ability to tolerate wet conditions and for its evergreen foliage, which provides year-round interest in water gardens, rain gardens, and as a ground cover in damp areas of the landscape. It is also used for habitat restoration projects. In cultivation, it prefers full sun to part shade and grows best in medium draining clay, loam, or sandy soils. It requires medium amounts of water, reflecting its natural preference for moist environments. While it is generally low-maintenance, it may need to be managed to prevent it from spreading too widely in garden settings.CC BY-SA 4.0