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 1A030774-FC52-4B6A-AF38-CBBADA5B03F1) with original publication details: Rhodora 36 116 1934.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:14712-2.
This name was in version 1 of The Plant List, record gcc-122309.