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 4D9DA4B2-0CE6-4169-9D87-7F6A236A2540) with original publication details: Pittonia 3 284 1898.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:14590-2.
This name was in version 1 of The Plant List, record gcc-88438.