Pot: 14 cm.
Also known as Mammillaria camptotricha f. brevispina, it is a plant highly appreciated by green collectors, due to the characteristic shape of its spines. This cactacea has a flattened habit, that tends to form clusters at the base. It is composed of multiple fleshy cylindrical tubercles, on the tips of which small and short orange cross-shaped spines grow. It blooms with white fragrant flowers, set between the tubercles.