The record derives from TICA
(data supplied on )
which reports it as a synonym (record
10114618-64F7-4BA3-A341-625AD82FD60C) with original publication details: "Korsh. in Zap. Imp. Akad. Nauk, Fiz.-Mat. Otd. 1. 1898" 264 1898.
This name record (from TICA) was not included in version 1 of The Plant List. It is possible the same name was included from a different data source, to check this you can search for Mulgedium tataricum in version 1 of The Plant List.