Phyllostegia leukantha H. St. John , Phytologia 63: 177. 1987.
Flora of the Hawaiian Islands --Basionym Type Information
Note: Not validly published under ICBN Art. 34.2 (1994). St. John used the same specimen, R. Hobdy 802 (BISH-522879!), for both the type of this name and the type of P. longitubata.