This name is a synonym of Antennaria rosea subsp. confinis (Greene) R.J.Bayer.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 11358DED-DA38-4221-9331-78E4A8504946) with original publication details: Canad. Field-Naturalist 64 19 1950.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:14715-2.
This name was in version 1 of The Plant List, record gcc-85531.