Notocactus uebelmannianus f. mostruosa (Monstrous)

N. uebelmannianus in its monstrous form is a very sought-after exemplar of cactus, thanks to its unusual and 'monstrous' look, with strange shapes. That makes it unique of its kind. The epidermis is dark green, with very protruding irregular ribs, above which we find the white and woolly areoles. Thin and white radial thorns emerge from the latter. Flowering takes place in spring, giving us small funnel-shaped flowers.