This name is a synonym of Crassula expansa subsp. fragilis .
The record derives from WCSP (in review) (data supplied on ) which reports it as a synonym with original publication details: Man. Fl. Pl. & Ferns 1: 38, 140 1927.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:273010-1
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This name was in version 1 of The Plant List, record kew-2741552.