This name is a synonym of Parvisedum leiocarpum (H. Sharsm.) R.T. Clausen.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 8901398) with original publication details: Madroño 5(6): 192–194, f. 1: 1, 3–4 1940.
This name was in version 1 of The Plant List, record tro-8901398, and has not been changed.