The Astrophytum myriostigma nudum, commonly known as Bishops Cap Cactus, is a unique, spineless cactus with smooth, green to bluish-green stems that are ribbed into 4-5 sections. Unlike the standard Astrophytum myriostigma, this nudum variety lacks the characteristic white trichomes (small, hair-like structures) that give it a speckled look, resulting in a clean, bare appearance. As it matures, it may form a star-like shape. In spring and summer, it produces yellow, daisy-like flowers that bloom at the top of the ribs. It is a slow-growing cactus that adds elegance to any collection.