This name is a synonym.
* Carex utriculata Boott in W.J.Hooker, Fl. Bor.-Amer. 2: 221 (1839).
Carex ampullacea var. utriculata (Boott) J.Carey in A.Gray, Manual: 566 (1848).
Carex rostrata var. utriculata (Boott) L.H.Bailey, Proc. Amer. Acad. Arts 22: 67 (1886).
Carex rostrata subsp. utriculata (Boott) Asch. & Graebn., Syn. Mitteleur. Fl. 2(2): 210 (1903).
Carex inflata var. utriculata (Boott) Druce, Rep. Bot. Soc. Exch. Club Brit. Isles 9(1): 141 (1930).
* Basionym/Replaced Synonym