This name is a synonym of Gutierrezia serotina Greene.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 4D659E77-005E-4BAE-9220-687AE41D0DAF) with original publication details: Amer. J. Bot. 25 117 1938.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:115043-2.
This name was in version 1 of The Plant List, record gcc-78150, and has not been changed.