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Classification

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Classification for Kingdom Plantae Down to Variety Mammillaria wrightii Engelm. var. wilcoxii (Toumey ex K. Schum.) W.T. Marshall

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Kingdom Plantae – Plants

Subkingdom Tracheobionta – Vascular plants

Superdivision Spermatophyta – Seed plants

Division Magnoliophyta – Flowering plants

Class Magnoliopsida – Dicotyledons

Subclass Caryophyllidae

Order Caryophyllales

Family Cactaceae – Cactus family

Genus Mammillaria Haw. – globe cactus P

Species Mammillaria wrightii Engelm. – Wright's nipple cactus P

Variety Mammillaria wrightii Engelm. var. wilcoxii (Toumey ex K. Schum.) W.T. Marshall – Wilcox's nipple cactus P

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