This name is a synonym of Antennaria dimorpha (Nutt.) Torr. & A.Gray.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 18FDBBE9-2F3F-4866-8A50-95BCADDF3359) with original publication details: Bull. Torrey Bot. Club 28 41 1901.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:14723-2.
This name was in version 1 of The Plant List, record gcc-98279.