Palm Sedge can form substantial colonies, which then provide cover for a wide variety of animals.
The seedheads are the most desirable part of the plant for wildlife. Waterfowl including the Mallard, Canada Goose, Wood Duck, Woodcock, and more dine on seeds as well as use the foliage for cover. Songbirds such as Towhees, Song Sparrows, and Swamp Sparrows also enjoy the seeds.
Many mammals will eat the seeds, but not as their main source of food. These include Black bears, fox squirrels, gray squirrels, and meadow voles.
Leaf beetles consume the leaves, along with various moths, skippers, and butterflies; however, many sources list a particular sedge as an insect’s host plant. While this may be true for some, it certainly isn’t for all. Other sedges would suffice, yet there hasn’t been any documentation to date.