Synonyms: Carex acuminata; Carex cuspidata (heterotypic); Carex diversicolor; Carex diversicolor var. cuspidata; Carex erythrostachys (homotypic); Carex flacca cuspidata (heterotypic); Carex flacca serrulata (heterotypic); Carex flacca var. acuminata; Carex flacca var. arrecta; Carex flacca var. cuspidata; Carex flacca var. erythrostachys; Carex glauca cuspidata; Carex glauca diversicolor; Carex glauca erythrostachys; Carex glauca f. acuminata; Carex glauca f. erythrostachys; Carex glauca f. serrulata (heterotypic); Carex glauca serrulata; Carex glauca var. acuminata; Carex glauca var. arrecta; Carex glauca var. bulbosa; Carex glauca var. cuspidata; Carex glauca var. erythrostachys; Carex glauca var. serrulata; Carex recurva erythrostachys; Carex serrulata (heterotypic); Loxotrema cuspidata; Olotrema acuminata