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 CF931CB2-D337-4650-8875-4453257CA726) with original publication details: Proc. U. S. Natl. Mus. 23 706 1901.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:14849-2.
This name was in version 1 of The Plant List, record gcc-36869.