Melocactus florschuetzianus (Cactus)

It's a spherical solitary cactus, slightly flattened at the top, of a typical glossy green color, with hairy areoles in the upper part of the plant and long, straight, reddish-orange spines, protruding outwards. At a certain age of the plant, when the cactus stops growing, a whitish spherical cephalium develops at the apex of the plant, formed by red bristles, from which small magenta flowers with thin petals bloom. The cephalium tends to grow, not in diameter, but only in height, assuming a characteristic cylindrical shape, that also gives an idea of the age of the plant.