⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record kew-386893, and has not been changed.
This name is a synonym of Alnus incana subsp. rugosa (Du Roi) R.T.Clausen.
The record derives from WCSP which reports it as a synonym (record 386893) with original publication details: Sp. Pl. 4: 335 1805.