Hibiscus arnottianus A. Gray var. punaluuensis Skottsb., Acta Horti Gothob. 15: 396. 1944.
Type information:
Syntype O. Selling 3638. 1938. O`ahu: Ko`olau Loa Dist., Ko`olau Mts, Punalu`u. Syntype(s) [BISH!, S].
=Hibiscus arnottianus subsp. punaluuensis

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