Coryphantha robustispina subsp. scheeri(Lem.) N. P. Taylor
Family: Cactaceae
[Coryphantha muehlenpfordtii (Poselg.) Britton & Rose, moreCoryphantha robustispina subsp. uncinata (L. D. Benson) N. P. Taylor, Coryphantha scheeri (Muehlenpf.) L. D. Benson, Coryphantha scheeri var. uncinata L. D. Benson, Coryphantha scheeri var. valida (Engelm.) Benson, Mammillaria scheeri Muehlenpf.]