Carex perlonga Fernald in Proc. Amer. Acad. Arts 43 (Contr. Gray Herb. n. s. 34): 61. 1907 sec. González-Elizondo & al. 2018
- =Carex viridis Schltdl. & Cham. in Linnaea 6: 30-31. 1831 syn. sec. Diego & González 2008
- =Carex viridiflora Mack., N. Amer. fl. 18: 275. 1935 syn. sec. Diego & González 2008