⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record kew-2616141, and has not been changed.

Acer orientale f. quinquenerve Vierh. is a synonym of Acer hyrcanum subsp. reginae-amaliae (Orph. ex Boiss.) E.Murray

The record derives from WCSP (in review) which reports it as a synonym with original publication details: Verh. Zool.-Bot. Ges. Wien 69: 108 1914.