Smicrostigma viride (Haw.) N.E.Br. in Gard. Chron., ser. 3, 87: 72. 1930 sec. Hartmann 2017
- ≡Mesembryanthemum viride Haw., Observ. Mesembryanthemum 2: 314. 1795 syn. sec. Hartmann 2017
- ≡Erepsia viridis (Haw.) L.Bolus in Fl. Pl. South Africa 7: t. 270. 1927 syn. sec. Hartmann 2017
- ≡Ruschia viridis (Haw.) G.D.Rowley in Natl. Cact. Succ. J. 33: 9. 1978 syn. sec. Hartmann 2017
- =Mesembryanthemum subaduncum Haw., Suppl. Pl. Succ.: 96. 1819 syn. sec. Kew WCVP (2019)
- =Mesembryanthemum integrum L.Bolus in Ann. Bolus Herb. 3: 134. 1922 syn. sec. Hartmann 2017
- ≡Ruschia integra (L.Bolus) Schwantes in Z. Sukkulentenk. 2: 187. 1926 syn. sec. Hartmann 2017