Cyperus mundii, commonly known as Papyrus Sedge or Smooth-Flatsedge, is a perennial herb native to wetlands, marshes, and riverbanks in Africa and Southern Spain. It typically grows at a moderate rate to a height of 1.5-2.5 feet (0.46-0.8 meters) and a width of 1-1.5 feet (0.3-0.5 meters). This sedge forms dense clumps of triangular stems topped with green, grass-like leaves and bears greenish-brown, inconspicuous flowers that bloom in the summer. The flowers are not particularly showy, but the plant’s overall form and texture can add interest to water gardens or boggy areas.

Papyrus Sedge is valued for its ability to thrive in wet conditions and is often used in water gardens, rain gardens, and as a marginal aquatic plant. It is also suitable for erosion control along waterways. In cultivation, it requires full sun to part shade and prefers very slow or slow draining loam or clay soils, with high amounts of water. While it is generally low-maintenance, it can spread if conditions are ideal, and it may require division to manage its growth. Cyperus mundii is potentially invasive in some regions outside its native range, and gardeners should consult local regulations before planting.CC BY-SA 4.0