⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record kew-21338, and has not been changed.
This name is a synonym of Betula nana subsp. exilis .
The record derives from WCSP which reports it as a synonym (record 21338
) with original publication details: Ill. Handb. Laubholzk. 1: 105 1904.