This name is a synonym of Hesperolinon congestum (A. Gray) Small.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 50120770) with original publication details: Man. Fl. Pl. Calif. 587 1925.
This name was in version 1 of The Plant List, record tro-50120770, and has not been changed.