Tetragonia tetragonoides Pall. Kuntze [family TETRAGONIACEAE], Rev. Gen. Pl. 2: 264 (1891).—Jeffrey in F.T.E.A., Aizoaceae: 34 (1961).—M. L. Gonçalves in C.F.A. 4: 333 (1970). Type from a plant cultivated in Moscow from seeds of unknown origin.
Demidovia tetragonoides Pall. [family TETRAGONIACEAE], Enum. Pl. Hort. Demidof: 150, t. 1 (1781). Type as above.
Tetragonia expansa Murr. [family TETRAGONIACEAE], in Comm. Soc. Sci. Göttingen 6: 13, t. 5 (1783) nom. illegit.—Welw. in Ann. Cons. Ultramar, Parte Naõ Off., Sér. 1, 1858: 557 (1859).—Pax in Engl. & Prantl, Pflanzenfam. 3, 1: 44, fig. 18 (1889).—Hiern, Cat. Afr. Pl. Welw. 1: 409 (1898).—Pax & Hoffrn. in Engl. & Prantl, Pflanzenfam. ed. 2, 16c: 232, fig. 103 (1934).—Williamson, Useful Pl. Nyasal.: 117 (1955).—Adamson in Journ. S. Afr. Bot. 21: 147 (1955). Type as for Tetragonia tetragonoides.