Paspalum lepton, commonly known as Thin paspalum or Brownseed paspalum, is a perennial grass native to the seasonally flooded grasslands and savannas of South America. It typically grows at a moderate rate to a height of 1.5-3 feet (0.46-0.9 meters) and is characterized by its narrow leaves and seed heads. The flowers, which are green or brown, are inconspicuous and bloom in the summer and fall, but they are important for seed production. This grass is often used for forage due to its ability to thrive in wet conditions.

Thin paspalum is valued for its adaptability to wet environments and is often used in areas where water retention is desired, such as in rain gardens or for erosion control. It is also utilized for pasture in its native range due to its tolerance of heavy grazing. In cultivation, it requires full sun and can grow in medium or slow draining clay or loam soils, with medium to high water needs. However, it can be potentially invasive outside its native range, and its aggressive growth can outcompete native vegetation. Gardeners should consult local regulations before planting to ensure it is not considered invasive in their region.CC BY-SA 4.0