This name is a synonym of Sambucus cerulea var. neomexicana Rehder.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 50333499) with original publication details: Mitt. Deutsch. Dendrol. Ges. 18: 30 1909.
This name was in version 1 of The Plant List, record tro-50333499.