This name is a synonym of Antennaria argentea (Gray) Benth..
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 9C244825-FEB1-4A74-8D65-0D42F7953044).
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 argentea in version 1 of The Plant List.