This name is a synonym of Antennaria rosea subsp. pulvinata (Greene) R.J.Bayer.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 052BAB1C-ADA4-44A5-96A8-8CBC880A6C11) with original publication details: Rhodora 16 130 1914.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:14876-2.
This name was in version 1 of The Plant List, record gcc-94328.