Eleocharis rostellata is a species of spikesedge known by the common name beaked spikerush.

It is widespread across North America (including Mexico, Guatemala and the West Indies), with isolated populations in Argentina.

[1][2][3][4] Eleocharis rostellata occurs in many types of wetland habitat, especially saline and alkaline water bodies such as hot springs, fens, and salt marshes.

Eleocharis rostellata is a rhizomatous perennial herb growing up to 1.2 meters tall with spongy, compressible stems.

The inflorescence is a single spikelet up to 2 centimeters long made up of many tiny flowers covered in light brown, sometimes purple-spotted bracts.