This name is a synonym of Anaphalis triplinervis (Sims) Sims ex C.B.Clarke.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 2ABA0447-A60A-4A03-ADD8-BF8F0B0946B2).
This name record (from TICA) was not included in version 1 of The Plant List. It is possible the same name was included from a different data source, to check this you can search for Antennaria triplinervis in version 1 of The Plant List.