Plantae > Tracheophyta > Magnoliopsida > Caryophyllales > Cactaceae > Mammillaria crucigera > Mammillaria crucigera crucigera Mammillaria crucigera crucigeraSynonyms: Cactus cruciger (homotypic); Mammillaria buchenaui; Mammillaria crucigera var. grandinosa; Mammillaria urbaniana
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