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 2BD12CE7-71D4-406C-A9DB-0C57E2CD6131) with original publication details: in Dict. Sc. Nat. xxv. 475. 1822.
This name was in version 1 of The Plant List, record gcc-6649.