Synonyms: Carex anguillata; Carex aquatilis anguillata; Carex aquatilis hyperborea; Carex aquatilis var. anguillata; Carex bigelowii dacica (homotypic); Carex bigelowii f. anguillata; Carex bigelowii f. glacialis; Carex bigelowii hyperborea; Carex bigelowii nardeticola; Carex bigelowii rigida; Carex caespitosa dacica (homotypic); Carex caespitosa var. dacica (homotypic); Carex cespitosa dacica; Carex cespitosa var. dacica; Carex cespitosa var. rigida; Carex fusca dacica; Carex fyllae; Carex hyperborea; Carex nigra dacica (homotypic); Carex rigida (heterotypic); Carex rigida f. aggregata (homotypic); Carex rigida f. anguillata; Carex rigida f. glacialis; Carex rigida f. infuscata; Carex rigida f. juncelliformis (homotypic); Carex rigida f. pudica; Carex rigida inferalpina; Carex rigida var. dacica; Carex rigida var. glacialis; Carex rigida var. inferalpina; Carex rigida var. recurva; Carex rigida var. saxatilis; Carex salina var. hyperborea; Carex saxatilis f. infuscata; Carex saxatilis f. pudica; Carex saxatilis var. infuscata; Carex saxatilis var. pudica; Carex vulgaris var. alpina; Carex vulgaris var. hyperborea; Onkerma rigida; Vignantha dacica (homotypic); Vignantha rigida; Vignea dacica (homotypic)
