⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record kew-21597, 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 21597
) with original publication details: Novosti Sist. Vyssh. Rast. 3: 75 1966.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:32225-2
.