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 78AB75D1-7516-4012-B409-286439F62329) with original publication details: Rhodora 47 184 1945.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:14764-2.
This name was in version 1 of The Plant List, record gcc-21830.