Synonyms
Purgosea dentata (Thunb.) G.Don
Petrogeton patens Eckl. & Zeyh.
Petrogeton typicum Eckl. & Zeyh.
Crassula dielsii Schönland
Crassula patens (Eckl. & Zeyh.) Endl.
Crassula marlothii Schönland
Petrogeton dentatum (Thunb.) Eckl. & Zeyh.
Thisantha patens Eckl. & Zeyh.
Septas dentata (Thunb.) P.V.Heath
Crassula petrogeton Walp.
Purgosea minima (Thunb.) G.Don