This name is a synonym of Sedum tsiangii var. torquatum (Fröd.) K.T. Fu.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 50198532) with original publication details: Acta Horti Gothob. 6(App.): 76 1931.
This name was in version 1 of The Plant List, record tro-50198532, and has not been changed.