Ruschia sessilis (Thunb.) H.E.K.Hartmann in Bradleya 16: 85. 1998 sec. Hartmann 2017
- ≡Mesembryanthemum sessile Thunb. in Nova Acta Phys.-Med. Acad. Caes. Leop.-Carol. Nat. Cur. 8(App.): 14. 1791 syn. sec. Hartmann 2017
- ≡Drosanthemum sessile (Thunb.) Schwantes in Z. Sukkulentenk. 3: 106. 1927 syn. sec. Hartmann 2017