Clermontia grandiflora Gaudich. var. longifolia A. Gray, Proc. Amer. Acad. Arts 5: 150. 1861.
Type information:
Lectotype [P]. C. Gaudichaud-Beaupré 144. October 1836. O`ahu: [Ko`olau Mts. above Honolulu].
Lectotypified in Lammers. Syst. Bot. Monogr. 32: 38. 1991. Isolectotype(s) [P! [4]].

Note: Syntype: U. S. Expl. Exped. s.n. (US).

=Clermontia kakeana
Note: Syntype: U. S. Expl. Exped. s.n. (US).

*Verification: Lammers, T.G. 1991. Syst. Bot. Monogr. 32:1-97.