Hibiscus arnottianus A. Gray var. kokio (Hillebr.) Hochr., Annuaire Conserv. Jard. Bot. Genève 4: 133. 1900.
Flora of the Hawaiian Islands --Basionym Type Information Hibiscus kokio Hillebr. , Fl. Hawaiian Islands 48 1888.
Moloka`i: Halawa Valley. 1851- 1871. W. Hillebrand s.n..
Lectotype
[B]. Isolectotype(s)
[BISH]. Lectotypified in O. Degener and I. De. Phytologia 35: 465. 1977.
Note: BISH sheet not located by Wagner et al., 1989.