Ferocactus glaucescens

It is a medium-sized, barrel-shaped cactus with a solitary habit. Its stem, with its characteristic grayish blue color, has well-marked ribs, framed by downy white areoles, from which yellow, robust, straight or slightly curved spines emerge. In late spring, it blooms with beautiful yellow funnel-shaped flowers, which form some sort of a ring at the apex of the plant.