Carex riparia, commonly known as riverbank sedge, is a species of plant that belongs to the sedge family. This plant is found predominantly near banks of rivers, streams or lakes. Carex riparia has various synonyms, including Carex acus-formis, Carex acuta and Carex vahlii. Riverbank sedge is a perennial grass that grows in dense bunches and typically reaches a height of 60 to 100 cm. It is an important plant for stabilizing riverbanks and controlling soil erosion. In addition to its ecological importance, it has various traditional medicinal uses and is a source of food for wild animals.