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 F2750CBA-9108-45A8-A8E4-B47B4696E241) with original publication details: Rhodora 16 131 1914.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:14879-2.
This name was in version 1 of The Plant List, record gcc-112038.