Hibiscus immaculatus M. J. Roe , Pacific Sci. 15: 22. 1961.
Type information:
Holotype [BISH]. C.N. Forbes 551.Mo. September 1912. Moloka`i: Wailau Valley, pali of Oloku`i above Waiehu.
=Hibiscus arnottianus subsp. immaculatus

*Verification: Wagner, W.L., D.R. Herbst, & S.H. Sohmer. 1989. Man. Fl. Pl. Hawai`i. 988pp..