Brighamia rockii H. St. John f. longiloba H. St. John, J. Linn. Soc., Bot. 62: 201. 1969.
Type information:
Holotype [BISH]. C.N. Forbes 519[A].Mo. September 1912. Moloka`i: sea palis of Wailau, both sides of Wy Ehu [= Waiehu]. Isotype(s) [MO!].

Note: St. John (ibid.) added the "A" to Forbes' collection number to distinguish this from another sheet of C. N. Forbes 519.Mo, assigned to B. rockii f. rockii.

=Brighamia rockii
Note: St. John (ibid.) added the "A" to Forbes' collection number to distinguish this from another sheet of C. N. Forbes 519.Mo, assigned to B. rockii f. rockii.

*Verification: Lammers, T.G. 1989. Syst. Bot. 14:133-138.