Isolepis distigmatosa, commonly known as Swamp Club-rush, is an evergreen perennial grass native to wetlands, swamps, and damp grasslands in New Zealand. It typically grows to a height of 0.5 feet (0.2 meters) and a width of 0.9 feet (0.3 meters). This grass forms tufts of fine, hair-like green foliage that can add texture to garden settings. The plant produces inconspicuous brownish flowers during the summer months, which are not particularly showy but are interesting upon close inspection.

Swamp Club-rush is valued for its ability to thrive in wet conditions and is often used in water gardens, bog gardens, and around ponds where it can help stabilize soil and provide habitat for aquatic wildlife. It is also suitable for rain gardens due to its high water requirement. In cultivation, it prefers full sun but can tolerate part shade, and it requires consistently moist to wet soil conditions with medium drainage. While it is not known for any significant diseases or pests, it can spread if conditions are ideal, so gardeners should monitor its growth to prevent unwanted spread.CC BY-SA 4.0