Turbinicarpus viereckii var. major (Glass & R.A.Foster) V.John & Říha in Kaktusy (Brno) 19: 22. 1983
Turbinicarpus viereckii var. major in Kaktusy (Brno) 19: 22. 1983
is new combination for Gymnocactus viereckii var. major in Cact. Succ. J. (Los Angeles) 50: 285. 1978