This name is a synonym of Helianthus giganteus L..
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 0D18C8ED-A0EE-42D6-9F6C-BAD43B8CF2B6) with original publication details: 74 1972.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:119199-2.
This name was in version 1 of The Plant List, record gcc-63947.