Carex pensylvanica, commonly known as Pennsylvania sedge, is a perennial herbaceous plant native to dry, open woodlands and forest edges in eastern North America, including eastern Canada and the eastern United States. It typically grows up to 18 inches tall and forms dense tufts and mats through cordlike rhizomes. Pennsylvania sedge blooms early in spring with inconspicuous greenish flowers that are not particularly showy. It is well-adapted to a range of soil types, from sandy to loamy, and can tolerate dry conditions once established.

Pennsylvania sedge is valued for its ability to form a low-maintenance, natural-looking ground cover, especially in shaded areas where lawn grasses may struggle. It is often used in woodland gardens, as an understory plant, and for erosion control on slopes. This sedge is also notable for its increased dominance in disturbed habitats, such as those affected by deer herbivory and invasive earthworm activity. While it is non-mycorrhizal, it can outcompete other plants in areas where mycorrhizal networks are disrupted, making it a resilient choice for challenging sites. In cultivation, it requires minimal care, thriving in part shade to full shade and preferring well-drained soils.CC BY-SA 4.0