Description: Clumping cactus. 
Stems: Blue-green, up to 6 cm in diameter, spherical, sometimes becoming somewhat cylindrical.
Spines: Radials 30 - 50, white, hair-like, 8 - 20 mm long, one (occasionally two) hooked. Centrals 1 - 7, reddish brown, 5 - 10 mm  long.
Flower: Funnel-form, creamy white to pinkish, 13 - 22 mm (0.5 - 0.9 in) long, up to 15 mm (0.6 in) in diameter, in spring and summer.
Fruit: Cylindrical, rosy-pink to red, 2,5 cm long in summer.