Pot: 15 cm.
A rare cactus plant much sought after and highly appreciated by green collectors and cactus lovers. Its dull green stem tending to a greyish color has a cylindrical shape, slightly concave at the apex, with dense, well-defined and slightly tuberculate ribs, along which there are small downy rounded yellowish areoles. The spines are very long and robust, of a brownish-yellow color that with age tends to gray. During the flowering period it blooms with bright yellow bell-shaped flowers, which can be tinged with pink according to the area of origin and the growing conditions.