Synonyms
Pediocactus schmiedickeanus var. gracilis (Glass & R.A.Foster) Halda
Turbinicarpus gracilis Glass & R.A.Foster
Turbinicarpus schmiedickeanus var. gracilis (Glass & R.A.Foster) Glass & R.A.Foster
Neolloydia schmiedickeana var. gracilis (Glass & R.A.Foster) E.F.Anderson