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 4D96C45C-9DB7-4272-BBC3-EF17F741BA23) with original publication details: Rhodora 36 111 1934.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:14624-2.
This name was in version 1 of The Plant List, record gcc-137736.