This name is a synonym of Antennaria parvifolia Nutt..
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 30AB6E73-3DF7-4B2E-889A-B4C70D654AE4) with original publication details: Rhodora 52 59 1950.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:14596-2.
This name was in version 1 of The Plant List, record gcc-63186.