Sclerocactus uncinatus subsp. wrightii (Engelm.) N.P.Taylor in Cactaceae Consensus Init. 5: 13. 1998
Sclerocactus uncinatus subsp. wrightii in Cactaceae Consensus Init. 5: 13. 1998
is new combination for Echinocactus uncinatus var. wrightii in Proc. Amer. Acad. Arts 3: 272. 1856