Pediocactus viereckii var. major (Glass & R.A.Foster) Halda in Acta Mus. Richnov., Sect. Nat., 5: 19. 1998
Pediocactus viereckii var. major in Acta Mus. Richnov., Sect. Nat., 5: 19. 1998
is new combination for Gymnocactus viereckii var. major in Cact. Succ. J. (Los Angeles) 50: 285. 1978