This name is a synonym of Helianthus petiolaris Nutt..
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 0E7A46DE-2D94-435F-B556-79EA650BC331) with original publication details: 72 1972.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:119083-2.
This name was in version 1 of The Plant List, record gcc-85984.