This name is a synonym of Sambucus racemosa f. rosaeflora (Carrière) Scoggan.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 50121161) with original publication details: Rev. Hort. 41: 434 1869.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:227230-2.
This name was in version 1 of The Plant List, record tro-50121161, and has not been changed.