This name is a synonym of Antennaria dioica (L.) Gaertn..
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record A1B96D17-4C40-4EBD-8E88-41D5A60C38B8).
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 dioica in version 1 of The Plant List.