Cyperus reflexus, commonly known as Bentawn Flatsedge, is a perennial sedge native to Australia. This species is a member of the Cyperaceae family, which includes a diverse array of grass-like plants found worldwide. Bentawn Flatsedge is characterized by its clumping growth habit, typically reaching heights of 30 to 60 centimeters. The plant produces erect, triangular stems that are smooth and green. Its leaves are basal, meaning they arise from the base of the plant, and are linear, typically measuring 2 to 5 millimeters in width. The inflorescence is a compound umbel, bearing numerous slender rays that subtend clusters of spikelets. Each spikelet contains several small, reddish-brown flowers. The fruit is a small, three-angled achene. Bentawn Flatsedge is primarily found in its native Australia, inhabiting a range of moist environments. It thrives in sandy soils and is often associated with ephemeral wetlands, creek banks, and other areas that experience seasonal inundation. Its natural distribution includes parts of Queensland, New South Wales, and Victoria. While not widely cultivated as an ornamental plant, its ability to tolerate moist conditions and its grass-like appearance make it suitable for naturalistic plantings in suitable climates. It prefers full sun to partial shade and consistently moist soil. Ecologically, Cyperus reflexus plays a role in stabilizing soil in its native habitats and provides a food source and habitat for various invertebrates and small fauna. Its seeds are dispersed by water and wind. While specific documented uses in traditional medicine, cuisine, or significant economic applications are not widely established for this particular species, many sedges have historically been utilized for weaving, thatching, or as fodder. The primary significance of Cyperus reflexus lies in its contribution to the biodiversity of Australian wetland ecosystems. Its ability to colonize damp, sandy areas highlights its adaptation to specific hydrological conditions. The plant's morphology, with its triangular stems and basal leaves, is characteristic of the sedge family, distinguishing it from true grasses. The reddish-brown color of its floral parts adds a subtle visual element to its otherwise green foliage.