Pot: 12 cm.
It is a cactus with an intense green body. It has a spherical shape, when small, which tends to become cylindrical with growth, equipped with marked longitudinal ribs. It has oval areoles, from which dense long and very straight spines emerge; it is not difficult to distinguish some robust spines, surrounded by many other very thin spines. It is characterized by funnel-shaped inflorescences at the apex of the plant, formed by thin petals and arranged in several layers, sometimes each of a different shade, but generally tending to white.