Origin and Habitat: Garden origin (Nursery produced cultivar)

• Mammillaria bombycina f. monstruosa green clone hort.

• Mammillaria bombycina Quehl
• Chilita bombycina (Quehl) Orcutt
• Ebnerella bombycina (Quehl) Buxb.
• Escobariopsis bombycina (Quehl) Doweld
• Neomammillaria bombycina (Quehl) Britton & Rose
• Mammillaria bombycina f. albicentralis hort.
• Mammillaria bombycina f. flavispina hort.

• Mammillaria bombycina cv. Split Spine
• Mammillaria bombycina cv. Trispina

Description: This is a strange monstrous cactus cultivar that forms very rubbery and squishy green and purple glob. It is supposed to be a mutation that formed on a normal {{Mammillaria bocasanaSN|8970]]SN|8970]]}}, but its true self is controversial. This cultivar shows many growing variations, with different monstrous shapes. The plant looks more like some non-cactus succulent than a cactus. Rarely a spine or a hair. It may enlarge to form low, massive clusteres.
Stem: Smooth, lumpy, rubbery-textured (much like a tumour), subtly crested, green and pink only a few centimetres across.

Cultivation and Propagation: Keep well ventilated, as it is prone to root rot. Protect from frosts and freezes. Hates the full sun in summer. It can thrive for years, but tend to self destruct, especially when it really odd looking. As with most monstrous, it began to die at the base (root rot is common); instead of giving up on it, you can cut it apart, let it heal and start many plants from that one.
Propagation: Grafting or Cuttings. It is easy to separate the "blog" into many new pieces. Each piece can be started on its own, with a bit of care, patience and maybe a little luck. As with most cactus, you can cut a piece, let it dry for a week or so, and put it into the soil and it will grow new roots, if the conditions are just right. The best luck is with cuttings that are 3 cm or larger; smaller ones will root, but they take much more effort to keep them alive.