Synonyms: Dichromena brasiliensis; Dichromena capillaris; Dichromena cubensis; Dichromena gracilis (heterotypic); Dichromena sabulosa; Fuirena gracilis (heterotypic); Haloschoenus capillaris; Haloschoenus capillaris var. descendens; Haloschoenus capillaris var. ustilaginosa; Haloschoenus caracasanus; Haloschoenus sabulosus; Rhynchospora cubensis (heterotypic); Rhynchospora curvula (heterotypic); Rhynchospora gracilis (heterotypic); Rhynchospora juncellus; Rhynchospora pseudolunata; Rhynchospora tenuis f. major; Rhynchospora tenuis f. minor; Rhynchospora tenuis var. antillana; Rhynchospora tenuis var. brevinux; Rhynchospora tenuis var. prorepens; Rhynchospora tenuis var. pseudolunata; Spermodon curvulus