This name is a synonym of Eryngium armatum (S.Watson) J.M.Coult. & Rose.
The record derives from WCSP (in review)
(data supplied on 2012-03-23)
which reports it as a synonym with original publication details: Bot. California 1: 255 1876.
This name was in version 1 of The Plant List, record kew-2799495, and has not been changed.