Taxa: Coryphantha robustispina, Coryphantha robustispina subsp. robustispina (Mammillaria robustispina, Cactus robustispinus, Coryphantha scheeri var. robustispina), Coryphantha robustispina subsp. scheeri (Mammillaria scheeri, Coryphantha robustispina subsp. uncinata, Coryphantha scheeri, Coryphantha sch
... (show all)eeri var. scheeri, Coryphantha scheeri var. uncinata, Coryphantha scheeri var. valida)