This name is a synonym of Helianthus californicus DC..
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 05C505C9-15F2-4B5C-B538-F5833A013F10).
This name record (from TICA) was not included in version 1 of The Plant List. It is possible the same name was included from a different data source, to check this you can search for Helianthus californicus in version 1 of The Plant List.