This name is a synonym of Delphinium umbrosum var. drepanocentrum (Brühl ex Huth) W.T.Wang & M.J.Warnock.
The record derives from WCSP (in review)
(data supplied on 2012-03-23)
which reports it as a synonym with original publication details: Bot. Jahrb. Syst. 20: 419 1895.
This name was in version 1 of The Plant List, record kew-2759401.