Pediocactus bradyi var. knowltonii (L.D.Benson) Backeb., Descr. Cact. Nov. 3: 12. 1963
Pediocactus bradyi var. knowltonii, Descr. Cact. Nov. 3: 12. 1963
is new combination for Pediocactus knowltonii in Cact. Succ. J. (Los Angeles) 32: 193. 1960
Pediocactus bradyi var. knowltonii, Descr. Cact. Nov. 3: 12. 1963
Taxon for this name