This name is a synonym of Pseudotsuga menziesii var. glauca (Beissn.) Franco.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 386562) with original publication details: Mitt. Deutsch. Dendrol. Ges. 33: 91 1923.
This name was in version 1 of The Plant List, record kew-2872643.