Mammillaria rettigiana

It is endemic to Mexico.

Mammillaria rettigiana synonym of Mammillaria mercadensis Mammillaria retusa synonym of Coryphantha elephantidens (Elephants Tooth) Mammillaria retusa synonym of Coryphantha retusa Mammillaria rhaphidacantha var. ancistracantha synonym of Coryphantha clavata ssp. stipitata Mammillaria rhodantha var. More