Drosanthemum calycinum (Haw.) Schwantes in Z. Sukkulentenk. 3: 29. 1927 sec. Hartmann 2017
- ≡Mesembryanthemum calycinum Haw., Saxifrag. Enum. 2: 187. 1821 syn. sec. Hartmann 2017
- ≡Sphalmanthus calycinus (Haw.) L.Bolus in S. African Gard. 17: 398. 1927 syn. sec. Kew WCVP (2019)