Pediocactus simpsonii var. winkleri (K.D.Heil) Halda in Acta Mus. Richnov., Sect. Nat., 5: 14. 1998
Pediocactus simpsonii var. winkleri in Acta Mus. Richnov., Sect. Nat., 5: 14. 1998
is new combination for Pediocactus winkleri in Cact. Succ. J. (Los Angeles) 51(1): 28-30. 1979