Carex wahuensis C.A. Mey. var. rubiginosa R.W. Krauss, Pacific Sci. 4: 257. 1950.
Type information:
Holotype [BISH]. H. St. John , R.S. Bean and & E.Y. Hosaka 11228. 21 December 1931. Hawai`i: Ka`u Dist., Kilauea Iki.1200m. Isotype(s) [US!].
=Carex wahuensis subsp. rubiginosa

*Verification: W.L. Wagner, D.M. Mix.