This name is a synonym of Helianthus nuttallii Torr. & A.Gray.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record DFB1CBF1-F63C-4922-B3DA-87DF7F4608A1) with original publication details: Rhodora 56: 199 199 1954.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:119195-2.
This name was in version 1 of The Plant List, record gcc-57629.