Carex echinata Murray subsp. echinata, Prodr. Stirp. Gott.: 76. 1770 sec. Diego & González 2008
- =Carex stellulata Gooden. in Trans. Linn. Soc. London 2: 144. 1794 syn. sec. ???
- =Carex stellulata var. angustata J. Carey, Manual: 544. 1848 syn. sec. Diego & González 2008
- =Carex echinata var. angustata (J. Carey) L.H. Bailey in Mem. Torrey Bot. Club 1: 59. 1889 syn. sec. Diego & González 2008
- =Carex angustior Mack., Fl. Rocky Mts.: 124, 1060. 1917 syn. sec. Diego & González 2008