This name is a synonym of Antennaria microphylla Rydb..
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 063C6F55-5BD6-40AF-84D7-F3B880D37A2B) with original publication details: Contr. Gray Herb. 165 100 1947.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:14684-2.
This name was in version 1 of The Plant List, record gcc-139897.