This name is a synonym of Sedum oxypetalum Kunth.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 8902388) with original publication details: Fl. Mexic. (ed. 2) 118 1894.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:231829-2.
This name was in version 1 of The Plant List, record tro-8902388, and has not been changed.