⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record kew-342821, and has not been changed.

Alnus sibirica f. acutiloba Koidz. is a synonym of Alnus hirsuta (Spach) Rupr.

This name is a synonym of Alnus hirsuta (Spach) Rupr..

The record derives from WCSP which reports it as a synonym (record 342821) with original publication details: Bot. Mag. (Tokyo) 27: 145 1913.