Cyperus compressus, commonly known as annual sedge, is an annual herb native to tropical and subtropical regions worldwide, including Africa, Asia, and the Americas. It thrives in open areas such as wetlands, riverbanks, and moist disturbed sites. This sedge typically grows to a height of 4-20 inches (10-50 cm), with a tufted growth form and green, grass-like leaves. The flowers are inconspicuous, with brownish spikelets that appear in summer. While not showy, the plant is known for its ability to thrive in wet conditions.

Annual sedge is often used for erosion control due to its fast growth and ability to stabilize soil with its roots. It is suitable for planting in rain gardens and around water features. In cultivation, it prefers full sun to part shade and requires consistently moist to wet soil conditions. It is relatively low maintenance but can become weedy if not managed properly. Cyperus compressus can be invasive outside its native range, so it is crucial to ensure it is not a problem in your area before planting.CC BY-SA 4.0