Carex ensifolia subsp. arctisibirica Jurtzev in Novosti Sist. Vysš. Rast: 308. 1965
Carex ensifolia subsp. arctisibirica in Novosti Sist. Vysš. Rast: 308. 1965
is basionym for Carex bigelowii subsp. arctisibirica in Univ. Colorado Stud., Ser. Biol., 24: 22. 1966