Synonyms: Isolepis ambigua (heterotypic); Isolepis juncoides; Isolepis mesantha; Isolepis oryzetorum; Schoenoplectiella lateriflora lateriflora; Schoenoplectiella supina lateriflora (homotypic); Schoenoplectus lateriflorus (homotypic); Schoenoplectus oryzetorum; Schoenoplectus supinus lateriflorus (homotypic); Schoenoplectus supinus var. lateriflorus (homotypic); Scirpus erectogracilis; Scirpus lateriflorus (homotypic); Scirpus oryzetorum; Scirpus supinus lateriflorus (homotypic); Scirpus supinus var. lateriflorus (homotypic)