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 39F6DE33-DDB3-49B3-8B91-713197701CDF) with original publication details: 1476 1974.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:119027-2.
This name was in version 1 of The Plant List, record gcc-54831.