Phyllostegia deltoidea H. St. John , Phytologia 63: 174. 1987.
Type information:
Holotype [BISH]. J. F. Rock 6127. 21 March 1910. Moloka`i: gulch of Maunahui. Isotype(s) [GH].
=Phyllostegia haliakalae

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