Ariocarpus cv. "cauliflower" hybrid:

Ariocarpus are as cool looking as they are slow growing, and can take years or sometimes decades to get to flowering size. The genetic masterminds of Japan’s cactus labs have been creating some mind blowing cultivars, and this hybrid features some of the exaggerated characteristics you might find in them. This is a degrafted plant just starting to push out new feeder roots.