This name is a synonym of Larix sibirica Ledeb..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym and as an illegitimate name (record 386016) with original publication details: Khvoin. Por. 50: 489 1945.
This name was in version 1 of The Plant List, record kew-2871691.