Phyllostegia alba H. St. John , Phytologia 63: 172. 1987.
Type information:
Holotype [BISH]. C.N. Forbes 363.M. 27 September 1917. Maui: [West Maui, Honokahau Drainage Basin, summit of Eeka, upper part of main ridge]. Isotype(s) [BISH!].
=Phyllostegia ambigua

*Verification: Wagner, W.L. 1999. Novon 9:265-279.