Eleocharis austriaca, commonly known as Austrian spike-rush, is a plant species found in wetlands around the globe. This plant has several synonyms, which are used in scientific literature to refer to it. Some of the synonyms for Eleocharis austriaca include Schoenoplectus tabernaemontani, Scirpus austrinus, and Eleocharis tabernaemontani. These synonyms are used interchangeably by scientists around the world to describe this species of plant. In addition to its scientific synonyms, Austrian spike-rush also has various common names, including saltmarsh spike-rush and common spike-rush. Overall, the varied names for Eleocharis austriaca demonstrate its geographic and scientific diversity.