Opuntia pyrrhacantha var. leucolutea (Backeb.) G.D.Rowley in Natl. Cact. Succ. J. 13: 6. 1958
Opuntia pyrrhacantha var. leucolutea in Natl. Cact. Succ. J. 13: 6. 1958
is new combination for Tephrocactus pyrrhacanthus var. leucoluteus, Descr. Cact. Nov. 1: 9. 1957 ["1956"]