Description: This is a stable genetic mutation from a very variable spined species M. spinosissima ssp. spinosissima, in which each areole only produces one spine, but some perfectly spineless areoles are also present.
Stem: Columnar solitary (usually) or slowly clumping, dark blue-green, rarely exceeding 30 cm, 10cm in diameter. Without latex.
Tubercule: Ovate conical, four-sided basally, the axil is lightly woolly. Tubercule arrangement: 13 - 21
Spines: Central spine: 1 straight, 10 - 30 mm long. Radial spine: 0
Flowers: Purple red, 12 mm long and in diameter.
Fruit: red or greenish.