Sclerocactus parviflorus f. terrae-canyonae (K.D.Heil) Hochstätter in Cactaceae Rev. 1: 14. 1998
Sclerocactus parviflorus f. terrae-canyonae in Cactaceae Rev. 1: 14. 1998
is new combination for Sclerocactus terrae-canyonae in Cact. Succ. J. (Los Angeles) 51: 26-28. 1979