Carex emoryi, the riverbank tussock sedge or Emory's sedge, is a plant species native to Canada, the United States, and the States of Chihuahua and Coahuila in northern Mexico. Its natural habitat consists of the banks of rivers and streams. It also occurs on sand and gravel bars in streams. It spreads by means of underground rhizomes. The species is sometimes utilized as a border along retention ponds, for erosion prevention and maintenance reduction along shorelines.