Mammillaria

Classification

Cactaceae [family]
(35 species)

Mammillaria [genus] (2)

Mammillaria mammillaris [species]

Mammillaria nivosa [species]

Classification

Cactaceae [family]
(35 species)

Mammillaria [genus] (2)

Mammillaria mammillaris [species]

Mammillaria nivosa [species]

Literature

The Plant List 2013. The Plant List version 1.1. [link]

Literature references linked to higher taxa

Encyclopedia of Life. [link] (Cactaceae)