Drosanthemum giffenii (L.Bolus) Schwantes in Natl. Cact. Succ. J. 4: 58. 1949 sec. Hartmann 2017
- ≡Mesembryanthemum giffenii L.Bolus in Ann. Bolus Herb. 4: 12. 1925 syn. sec. Hartmann 2017
- ≡Drosanthemum giffenii var. giffenii syn. sec. The Plant List v. 1.1 2013
- =Mesembryanthemum giffenii var. intertextum L.Bolus in Ann. Bolus Herb. 4: 76. 1927 syn. sec. Hartmann 2017
- ≡Drosanthemum giffenii var. intertextum (L.Bolus) Schwantes in Natl. Cact. Succ. J. 4: 58. 1949 syn. sec. Hartmann 2017