Obregonia denegrii – The Artichoke Cactus. This is one of the rarest and most sought-after “living rock” cacti and is prized for its pine-cone-like shape.
It is the only species in its monospecific genus, though it is most closely related to Ariocarpus and Lophophora.
You will receive one established seedling roughly 20-30mm in diameter. Please see the photo which includes an Australian $2 coin for size reference.