Cactus pottsii Chilita pottsii Leptocladia leona Mammillaria leona Neomammillaria pottsii Mammillaria pottsii, also known as fox-tail cactus or rat-tail nipple cactus, is a species of flowering plant in the family Cactaceae.

[1] It was first described by Scheer ex Salm-Dyck, Cact.

1849: 104 (1850)[2] According to the United Nations Environment Programme, M. leona is a synonym for M.

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