This name is a synonym of Baccharis rufescens var. rufescens .
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record A6205FC6-0475-42A6-8E24-BCF74D52D42D) with original publication details: 136 1915.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:28184-2.
This name was in version 1 of The Plant List, record gcc-115779.