Delosperma nubigenum Delosperma nubigenum (Schltr.) L.Bolus, Handb. Succ. Pl. 3: 1103. 1960 sec. Hartmann 20171≡Mesembryanthemum nubigenum Schltr. in J. Bot. 36: 316. 1898 syn. sec. Hartmann 201711. Hartmann, H. E. K. 2017 – In: Hartmann, H. E. K., Illustrated handbook of succulent plants. Aizoaceae, ed. 2. – Berlin: SpringerContent