Usually solitary, from spherical to cylindrical (plants tend to grow columnar even at a young age), erect, 8-18 cm in diameter, 15-40 cm in height. The top is depressed, little or not covered with hair at all, but strongly pointed. The epidermis is shiny dark green, gray-green or olive-green.
Flowers: Very showy, funnel-shaped around the top, they are one of the largest in this genus, 6-7 cm long and wide, often grow larger plants, bright pink.