⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record kew-35159, with some changes.

Castanopsis cuspidata var. sieboldii (Makino) Nakai is a synonym of Castanopsis sieboldii (Makino) Hatus.

This name is a synonym of Castanopsis sieboldii (Makino) Hatus..

The record derives from WCSP which reports it as a synonym (record 35159) with original publication details: J. Jap. Bot. 15: 1939.