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 DB40762B-875E-44FA-BF3F-18E91C931DE9) with original publication details: Ottawa Naturalist 18 39 1904.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:272192-2.
This name was in version 1 of The Plant List, record gcc-13364.